name some of the materials used to build the tabernacle. use complete sentences and include at least three specific materials that were used by the builders.
The answer would be Porpoise Skin, Acacia wood, gold, silver and bronze.
Some of the materials that are used to build the tabernacle. The three specific materials that were used by the builders are mentioned below :
Porpoise Skin, Acacia wood, gold, silver and bronze
Porpoise skins to make the covering of sanctuary as well as the container. Acacia wood also called as mimosa. It is excellent quality of wood. The durability of wood is extremely good. Gold is a chemical element with the symbol Au and Z is 79. This makes it one of advanced that rudiments naturally. It's a bright orange-unheroic, thick, soft, malleable, and ductile essence in pure form.
Tabernacle is related to exodus God, it is basically a residence of God.
It is also used for astrological purpose and healing motives.
High resistance fungus.
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A package of chocolate instant pudding contains 2840 mg of sodium how many grams of sodium are in it
2.48 g of sodium are in it
Chemical element of the alkali metal group Group 1 A of the periodic table and sodium is a very soft silvery-white metal and sodium is the most common alkali metal and the sixth most abundant element on Earth
Here given data is package of chocolate instant pudding = 2840 mg of sodium then in order to determine the amount of sodium in grams, we will follow the unit conversion method which is given below so, thus, the amount of sodium present in the chocolate instant pudding in grams is 2.48g
2840mg→g
1000mg/g = 2.48g sodium are in it
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how does the trend ionization energy affect the reactivity of group 1 element
Answer:
Alkali Metals are the name given to Group 1 elements. They are known as s-block elements because the s subshell is home to their highest energy electrons. As one moves along group 1, the atomic radius grows as a result of each element's additional electron shell. The initial ionization energy drops as you move along the group.
Explanation:
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Use the graph to determine the velocity between 6 and
12 seconds.
What was the velocity over the entire trip?
(there was no science option or there probably was but im slow, so i put chemistry)
-2 and 0 was the velocity over the entire trip
What is the distinction between velocity, acceleration, and speed?An object's velocity, which encompasses both its speed and direction of motion, is equal to the rate at which its location changes. The acceleration is determined by how quickly an object's velocity changes.
Similar to how distance and displacement are connected, speed and velocity are also related. Velocity is a vector, whereas speed is a scalar. The letters v (italic) stand for velocity and v for speed (boldface). A bar appears over the symbol for average values.
A train travelling at an average speed of 50 km/h in the south will go north at a speed of 50 km/h.
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Be sure to answer all parts. Recall that there is restricted rotation around carbon-carbon double bonds. Maleic acid and fumaric acid are two isomers with vastly different physical properties and pka values for loss of both protons. Explain why each of these differences occurs
Differences in the melting point and pKa values between the maleic (Z- or cis-isomer) and fumaric (E- or trans-isomer) acid stem from differing in the orientation of carboxylic groups around the double bond.
Fumaric acid has a much higher melting point (287 degrees Celsius) than maleic acid (135 degrees Celsius). This is because maleic acid forms an intramolecular H-bond between the two carboxylic groups (due to their proximity to one another), which means that it cannot form such a bond with other molecules, weakening the intermolecular interactions and lowering the melting point.
Fumaric acid has pKa values of 3.03 and 4.44, while the values for maleic acid are 1.9 and 6.07. This means that the maleic acid will much more easily lose the first proton, but then lose the other one with more difficulty. This is again due to the proximity of the two carboxylic groups. The first proton is easily lost because upon its leave, the remaining one is bound through an additional H-bond to the other carboxylic group, making it more difficult to remove.
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When sodium (Na) is mixed with water, an explosion takes place. Based on its location on the periodic table, how will potassium (K) behave with water?PLS HELP ME
a) Potassium is in the same period as sodium and shares similar properties so it will explode.
b) Potassium has the same number of valence electrons as sodium so it will explode in water.
c). Potassium is a non metal but sodium is a metal so potassium will not explode.
d) Potassium is in the same group as sodium so it does not share similar chemical properties and it will not explode.
Answer:d
Explanation:
a monolayer containing 3.18×10-6 g of oleic acid has an area of 20.0 cm2. the density of oleic acid is 0.895 g / ml. what is the thickness of the monolayer (the length of an oleic acid molecule)? 5.69×10-5 cm 1.42×10-7 cm 7.11×10-5 cm 5.63×10-6 cm 1.78×10-7 cm
A monolayer is containing 3.18×10-6 g of oleic acid has an area of 20.0 cm2, thus the thickness of the monolayer is calculated as 1.777 × 10⁻⁷ cm
Thickness of MonolayerUsing,
Density = Mass / Volume
It is given that:
Area = 20.0 cm²
Density = 0.895 g/mL
Mass = 3.18 × 10⁻⁶ g
Then, applying the density formula as:
0.895 g/mL = 3.18 × 10⁻⁶ g / Volume (ml)
Volume = 3.55 × 10⁻⁶ mL
Since, 1 mL = cm³
So, Volume = 3.55 × 10⁻⁶ cm³
Thickness of monolayer = ?
Also, Volume = area x thickness
So, then we have
Thickness = Volume/Area = 3.55 × 10⁻⁶ cm³ / 20.0 cm²
= 1.777 × 10⁻⁷ cm
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Polyacrylamide is a water-soluble polymer whose aqueous solution containing 25 g/l develops an osmotic pressure of 0. 54 torr at 25◦c. Find the approximate molecular weight of the polymer sample.
By ideal gas approximation, the molecular weight of the polymer sample is 861471.83 gram.
We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation
P . V = n . R . T
where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (0.0821 atm.L/mol.K) and T is temperature.
From the question above, we know that
ρ = 25 g/L
P = 0.54 torr = 0.00071 atm
T = 25⁰ C = 298 K
We can change the number of moles to density form
P . V = n . R . T
P . V = gr/Mr . R . T
Mr = ρ . R . T / P
Mr = 25 . 0.0821 . 298 / 0.00071
Mr = 861471.83 gram
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The density of ethyl alcohol is 0.79 g/mL. What is the mass of 150 mL of ethyl alcohol?
Answer:
118.5 grams
Explanation:
150*0.79 because there are 0.79 grams in a milliliter and we need to find out how many are in 150 milliliters
The fastest animal in the world is the peregrine falcon. it is capable of diving after its prey at an amazing 83.00 meters per second. how fast this is the penguin going in miles per hour?
speed conversion tiles
a. 128.0 miles/hour
b. 185.7 miles/hour
c. 298.8 miles/hour
d. 371.1 miles/hour
298.8 miles/hour is the penguin going in miles per hour.
What is the fastest peregrine falcon diving speed ever recorded?The peregrine falcon is the world's fastest diving bird and the fastest animal. According to Guinness World Records, one was recorded travelling at more than 380 km/h while stooping - diving after prey - in 2005.It’s given that a peregrine falcon’s maximum speed while diving is 200 miles per hour and that 1 mile = 5280 feet. Therefore, a peregrine falcon’s maximum speed while diving is (200 miles/1 hour)(5280 feet/1 mile)=1,056,000 feet per hour.There are 60 minutes in 1 hour and 60 seconds in each minute, so there are (60)(60) = 3600 seconds in 1 hour. A peregrine falcon’s maximum speed while diving is therefore (1,056,000 feet/1 hour)(1 hour/3600 seconds) ,
which is approximately 293.33 feet per second. To the nearest whole number, this is 293 feet per second.
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how are the atoms of different elements different?
Any atom can differ in the amount of any of the three particles in each of them.
If the number of protons is different, the atoms are of two different elements. The number of neutrons in atoms of different elements can be the same and the number of neutrons in two atoms of the same element can be different.
The number of protons in the atoms of each element is fixed to its atomic number. The atomic mass can be the same across atoms of different elements but the atomic number is the same. It is therefore accurate to say that atoms of different elements can be identified solely by the number of protons.
Select the most appropriate tool for each measurement. exactly 200.00 ml salt solution: a 0.02-ml acid solution: approximately 400 ml water: exactly 77.5 ml methanol:
For exactly 200.00 ml NaCl solution the most appropriate tool would be volumetric flask because it gives the results in most precise way.
For a 0.02 ml acid solutions the most appropriate tool would be 1 ml pipette due to the reason of neutralization of alkali.
For approximately 400 ml of H20 the most appropriate tool would be beaker because we may need stirring the H2O in any experiment.
For exactly 77.5 ml methanol the most appropriate tool would be graduated cylinder we need a measuring cup during the experiment.
In conclusion the answer would be volumetric flask, 1 ml pipette, beaker, graduated cylinder.
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Answer: For exactly 200.00 ml NaCl solution the most appropriate tool would be volumetric flask because it gives the results in most precise way.
For a 0.02 ml acid solutions the most appropriate tool would be 1 ml pipette due to the reason of neutralization of alkali.
For approximately 400 ml of H20 the most appropriate tool would be beaker because we may need stirring the H2O in any experiment.
For exactly 77.5 ml methanol the most appropriate tool would be graduated cylinder we need a measuring cup during the experiment.
In conclusion the answer would be volumetric flask, 1 ml pipette, beaker, graduated cylinder.
Explanation:
If 5.47 moles of gas are produced in an experiment and it is measured that they occupy 112 l at stp, what is the experimental molar volume of the gas?
The molar volume of gas is 20.48 liter/mol.
We need to know about molar volume to solve this problem. The molar volume is defined as how much volume is in one mole of the substance. It can be calculated by this equation
Vm = V / n
where Vm is molar volume, V is the volume of the substance and n is the total amount of substance in moles.
From the question above, the given parameters are
n = 5.47 moles
V = 112 L
By substituting the given parameter, we can calculate the molar volume
Vm = V / n
Vm = 112 / 5.47
Vm = 20.48 L/mol
Hence, the molar volume of gas is 20.48 liter/mol.
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Solve the following Scientific Notation Questions:
1) Express the following in standard form:
a) 5.2 x 10^3
b) 9.65x10^-4
c) 8.5x10^-2
Answer:
(1) 5.2 × 10^3 in standard form is 5200
(2) 9.65 × 10^-4 in standard form is 0.000965
(3) 8.5 × 10^-2 in standard form is 0.085
Explanation:
(1) The exponent is 3, making it 10 to the power of 3. As the exponent is positive, the solution is a number greater than the origin or base number. To find our answer, we move the decimal to the right 3 time(s), giving you 5200 as your answer in standard form.
(2) The exponent is -4, making it 10 to the power of negative 4. When an exponent is negative, the solution is a number less than the origin or base number. To find our answer, we move the decimal to the left 4 times, giving you 0.000965 as your answer in standard form.
(3) The exponent is -2, making it 10 to the power of negative 2. When an exponent is negative, the solution is a number less than the origin or base number. To find our answer, we move the decimal to the left 2 times, giving you 0.085 as your answer in standard form.
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Water molecules that surround a less polar molecule in solution are ________.
a. mobile and ordered
b. immobile and disordered
c. mobile and disordered
d. immobile and ordered
Water molecules that surround a less polar molecule in solution are immobile and ordered.
Water is good at dissolving ions and polar molecules, but it is poor at dissolving non-polar molecules. Water makes an excellent solvent because of its polarity and ability to form the hydrogen ions.
Polar molecules have the electric charges which are unequally distributed. Water forms the electrostatic interactions which are charge-based attractions with the other polar molecules and ions, due to its polarity.
Hydrogen carries a partial positive charge and oxygen with partial negative charge. Oxygen having partial negative charge and hydrogen having partial positive charge results in the polarity of the molecule.
The less polar molecules and ions interact with the water, the partially positive and partially negative ends of water. The positive charges attracts negative charges, thus leading it to be immobile and ordered.
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a polymer mixture p has number-average and weight-average molecular weights of 120,000 and 300,000 respectively and was divided into fractions a and b by fractional precipitation.
A polymer mixture p that has number-average and weight-average molecular weights of 120,000 and 300,000 and then Number average molecular weight is 110,000 g/mol
a) The number average molecular weight (NAM) is calculate using the mole numbers of each component. In this case, we will multiple each component molecular weight by the number of moles of each one. After that we will sum them and finally to divide by the total number of moles.
NAM = (Na*MA + Nb*MB)/(Nt)
NAM = (1 mol *120000 g/mol + 1*100000 g/mol ) /(2 mol)
NAM = 110000 g/mol
The number average molecular weight for the polymer P is 110,000 g/mol
We have a polymer P made up of two monodisperse fractions.
A with molecular weight of MA = 120000 g/mol and B with MB =100000 g/mol.
The batch contains an equal mole fraction of each component A and B.
Let's suppose a total number (Nt) of mols 2 moles. Equal fraction means XA = 0.5 and XB =0.5
Nt = 2 mol
Na = 2*0.5 = 1 mol
Nb = 2*0.5 = 1 mol.
So, we have 1 mol of A, 1 mol of B and 2 moles in total.
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If there are 2.54 cm in an inch,how many inches are in 225 cm?
Answer:
88.58 inches
Explanation:
You would just divide 225 by 2.54
Answer:
88.5827
Explanation:
Water is an example of a(n)
Answer:
Water as a Compound and Molecule
A compound forms whenever two or more atoms form chemical bonds with each other. The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms. Thus, water is a compound
Your job is to design a mixer to produce 200 kg/day of battery acid. The mixer will operate continuously and at steady state. The battery acid product must contain 18. 6 wt% h2so4 in water. Raw materials available include a concentrated sulfuric acid solution at 77 wt% h2so4 in water, and pure water. What is the flow rate of each raw material into the mixer?
Answer: Sulfuric acid
Explanation: Sulfuric acid is a colorless oily liquid. It is soluble in water with release of heat. It is corrosive to metals and tissue.
Grey-coloured iron powder was heated in reddish-brown bromine vapour. A yellowish-green powder was formed. State if the yellowish-green powder is an element, a compound or a mixture. Explain your answer.
The yellowish-green powder is a compound because two elements (iron and bromine) chemically combined to form it.
What is a compound?A compound in chemistry is a substance formed by chemical bonding of two or more elements in definite proportions by weight.
This means that a compound is formed by the chemical bonding of two or more elements.
According to this question, a grey-coloured iron powder was heated in reddish-brown bromine vapour to form a yellowish-green powder.
The grey-coloured iron is an element that combined with the reddish-brown bromine gas. This suggests that two elements combined. It can be said to be a chemical reaction because a colour change was observed.
Therefore, the yellowish-green powder is a compound because two elements (iron and bromine) chemically combined to form it.
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What is the composition of the nucleus of 26Mg?
They only differ in that a 24Mg atom has 12, a 25Mg atom has 13, and a 26Mg atom has 14 neutrons in its nucleus.
What are neutrons?Neutrons are defined as a proton-sized subatomic particle with no electric charge that is present in all atomic nuclei with the exception of those of regular hydrogen. Hydrogen is the sole exception, as it has a single proton in its nucleus. Compared to positively charged protons, neutrons have a little higher mass and a neutral electric charge.
Magnesium (Mg). Diagram of the magnesium-24 atom, the most prevalent isotope of this element, showing its nuclear structure and electron configuration. 12 protons (red) and 12 neutrons make up the nucleus (blue). When neutral, magnesium-26 contains 12 protons and 12 electrons.
Thus, they only differ in that a 24Mg atom has 12, a 25Mg atom has 13, and a 26Mg atom has 14 neutrons in its nucleus.
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Describe the relationship between the kinetic energy of particles and states of matter.
The existence of distinct states of matter is explained by variations in kinetic energy. Because matter particles are attracted to one another, they tend to group together. Only if the particles possess sufficient kinetic energy to overcome this force of attraction can they move apart.
It can be explained as follows:
Matter exists as a solid if particles lack the kinetic energy to dissipate the force of attraction between them. The particles are held securely in place and are tightly packed together. They are only able to vibrate. This explains why the volume and shape of solids are fixed.Matter exists as a liquid if particles have enough kinetic energy to partially overcome the force of attraction between them. While the particles can slide past one another, they cannot totally separate. This explains why liquids have a constant volume but can change shape.Matter exists as a gas if particles possess sufficient kinetic energy to totally overcome the force of attraction between them. The granules may separate and disperse. This clarifies why.So, the kinetic energy is decidable factor in the occurrence of matter in a particular state.
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The separation of the components of a mixture is based upon the fact that each component has different.
The separation of the components of a mixture based upon the fact that each component has different set of physical and chemical properties.
These components are pure substances which can either be elements or the compounds. There are various factors for the separation of the components. These factors are state, melting and boiling point, solubility, magnetic nature etc.
Techniques such as chromatography, distillation, evaporation, and filtration are used for mixtures that can be separated through physical changes.
Physical changes do not affect or change the nature of the substance. It simply changes the form. Through chemical changes pure substances, such as compounds, can be separated.
Physical properties of the component can be physical state, magnetic and electrical properties, specific gravity, density, melting point, boiling point and solubility, etc.
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A sample of he gas and o2 have the same temperature, pressure, and volume. Which gas has a greater number of collisions of gas molecules with the walls of the container?.
If a sample of He gas and O₂ have the same temperature, pressure, and volume then He gas will have more collisions.
This is because the He gas has less molecular mass then the oxygen gas and hence it can move more easily than oxygen thus will collide more with the walls of the container while being on the same temperature, pressure and volume as the oxygen gas. because of its low molecular mass it moves with the high average velocity than the oxygen gas and hence the rate of its collision with the walls of the container ins more.
Thus the He gas will have more number of collisions then the Oxygen gas while having same temperature, pressure and volume.
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A gas occupies 1.56 L at 101.3kpa. What will be the volume of this gas if the pressure becomes
45.5kpa?
The volume of a gas that initial occupies 1.56 L at 101.3 KPa is 3.47L.
How to calculate volume of a gas?The volume of a gas at a given pressure can be calculated using Boyle's law equation as follows:
P1V1 = P2V2
Where;
P1 = initial pressureV1 = initial volumeP2 = final pressureV2 = final volumeAccording to this question, a gas occupies 1.56 L at 101.3 kpa, the volume of this gas if the pressure becomes 45.5kpa can be calculated as follows:
101.3 × 1.56 = 45.5 × V2
158.028 = 45.5V2
V2 = 3.47L
Therefore, the volume of a gas that initial occupies 1.56 L at 101.3 KPa is 3.47L.
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Which of the following is a homogeneous mixture? a) Ice cubes in soda c) Sandy water b) Vinegar d) Silver
Answer:
The answer is salty water
Explanation:
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is the formation of phosgene from carbon monoxide and diatomic chlorine an elementary reaction? that is, does it occur in a single step? explain your answer.
Yes, formation of phosgene from carbon monoxide and diatomic chlorine is an elementary reaction. A one-step reaction kind that is referred to as an elementary reaction. And this kind of reaction occurs in a single step.
Elementary reactionThe coefficients of all the reactants in the balanced equation can also be used to get the rate law for an elementary reaction.
For example, to be seen as the rate = k[A]2[B] is the rate rule for the elementary reaction 2A + B products.
What does a chemical fundamental reaction entail?The simplest kind of reaction is an elementary reaction that takes place in just one step.
The molecularity of an elementary reaction—a measure of how many molecules of reactants is involved—is typically used to categories them.
Elementary reactions are also well-defined chemical processes that happens only when two or in rarely three molecules or ions that collide.
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The process of changing position is
Motion is the act of shifting one's position.
By motion, what do you mean?The physics term for a body's position or orientation changing over time. Translation is the movement along a straight or curved path.. Rotation is a motion that modifies a body's orientation.
According to the information provided,
a body is said to be in motion if its position varies over time. Speed, velocity, distance traveled, displacement, acceleration, and time may all be quantitatively described.
Physics' discipline of kinematics discusses a body's motion without mentioning its cause, while dynamics examines forces as well as how they affect motion.
When it is discovered that an object is not altering its location with respect to a certain frame of reference, it is said to be at rest. Another word for the condition of rest is stationary.
Thus, we could draw the conclusion that motion is the process by which an object's location changes over time.
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What do these two changes have in common?
compost rotting
cellular respiration
Select all that apply.
Both are changes of state.
Both are caused by heating.
Both are chemical change
Both conserve mass.
The correct answer is (C) and (D). Both are chemical changes and both conserve mass.
The apple rots and turns into compost rotting over time. Due to the fact that the compost cannot be converted back into an apple core, this is an illustration of a chemical transition.
The sugar in the marshmallow can caramelize when it is heated over a flame; this chemical process gives the marshmallow its toasted flavor and brown hue.
When bonds between molecules or atoms are created, disrupted, or both, chemical changes result. This indicates the transformation of one substance with certain physical characteristics changes into another substance with distinct characteristics. Organic, inorganic, and biological changes are the three different types of chemical alterations.
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The density of silver at room temperature is 10.49 g/cm3, and the density of silver at its melting point is 9.3 g/cm3. What does this information indicate about the differences between solid silver and liquid silver? PLS HELP ME
a)The particles in solid silver have more mass than those in liquid silver.
b)When solid silver melts, its particles move farther apart.
c)The particles in solid silver have more energy than those in liquid silver.
d)When solid silver melts, some of its particles evaporate.
The density of silver at room temperature is 10.49 g/cm3, and the density of silver at its melting point is 9.3 g/cm3 when solid silver melts, its particles 'move farther apart'
From the given data density of silver at room temperature is 10.49 g/cm3, and the density of silver at its melting point is 9.3 g/cm3 then solid melts, liquid state is obtained and intermolecular distance in liquid is more than the intermolecular distance in solid due to this, the strength of intermolecular forces of attraction decreases when silver solid melt then its particles move farther apart and that's why the solid silver which is at room temperature density is more because it is in room temperature but we melt then particles are move faster and move apart from other and density become less.
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