ASAP question also in pic will get Brainiest
​What is the force of an egg that is thrown at a brick wall if the egg has a mass of .03 kg and an acceleration of 50 m/s/s
Use the formula F=ma ( dont forget the units )

Answer:

the sing post

Explanation:

because the reference frame is a fixed object that determines whether a body is in motion or not so the other passengers are fixed but relative to the the the man is at rest but relative to the sign post it is in the motion, did I get me, sister

a. 381.27 m/s

b. the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triiodide

Given

T = 100 + 273 = 373 K

Required

a. the gas speedi

b. The rate of effusion comparison

Solution

a.

Average velocities of gases can be expressed as root-mean-square averages. (V rms)  

[tex]\large {\boxed {\bold {v_ {rms} = \sqrt {\dfrac {3RT} {Mm}}}}[/tex]

R = gas constant, T = temperature, Mm = molar mass of the gas particles  

From the question  

R = 8,314 J / mol K  

T = temperature  

Mm = molar mass, kg / mol  

Molar mass of Sulfur dioxide = 64 g/mol = 0.064 kg/mol

[tex]\tt v=\sqrt{\dfrac{3\times 8.314\times 373}{0.064} }\\\\v=381.27~m/s[/tex]

b. the effusion rates of two gases = the square root of the inverse of their molar masses:  

[tex]\rm \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }[/tex]

M₁ = molar mass sulfur dioxide = 64

M₂ =  molar mass nitrogen triodide = 395

[tex]\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{395}{64} }=\dfrac{20}{8}=2.5[/tex]

the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triodide

Answer:  

Heat causes the molecules to move faster (heat energy is converted to kinetic energy), which means that the volume of a solid or a liquid. ... The particles in the air do not have more kinetic energy than particles in the mercury, because they are the same.

Explanation:

I hope this help you!

Answer:

B

Explanation:

Answer: Fe3+

Explanation: j took the quiz

Answer : The correct option is, [tex]Zn^{2+}[/tex]

Explanation :

Or we can say that, oxidation reaction occurs when a reactant losses electrons in the reaction.

Or we can say that, reduction reaction occurs when a reactant gains electrons in the reaction.

According to the electrochemical series, [tex]Zn^{2+}[/tex] most likely to be reduced because

Hence, the ion most likely to be reduced is [tex]Zn^{2+}[/tex].

The most likely to be reduced is Cu ²⁺. Because it is stronger oxidizing agent.

In a redox chemical reaction, an oxidizing agent is a material that "accepts" or "receives" an electron from a reducing agent. So every substance that oxidizes another material is an oxidant.

A material that induces oxidation by receiving electrons becomes reduced when it acts as an oxidizing agent. A chemical that reduces something by gaining electrons is said to be an oxidizing agent.

The reduction that takes place, which involves Cu, is the one with the highest positive reduction potential. This is because either Cu2+ is a stronger oxidizing agent than Zn2+ or Cu2+ is more likely to be reduced than Zn2+.

Thus, option D is correct.

To learn more about oxidizing agent, follow the link;

https://brainly.com/question/10547418

#SPJ2

Answer:

Explanation:

Her average speed can be found by using the formula

[tex]v = \frac{d}{t} \\ [/tex]

d is the distance

t is the time taken

From the question we have

[tex]v = \frac{300}{30} = 10 \\ [/tex]

We have the final answer as

Hope this helps you

The molarity of ethanol in the solution is 0.217 M

Given

1% by mass

density = 0.996 g/ml

Required

The molarity

Solution

mass/ml of Ethanol :

1% x 0.996 g/ml = 0.00996 g/ml

For 1 L solution :

0.00996 g/ml x 1000 ml/L = 9.96 g/L

Convert to mol/L(MW ethanol=46 g/mol) :

9.96 g/L : 46 g/mol= 0.217 mol/L = 0.217 M

Or you can use equation :

[tex]\tt M=\dfrac{\%mass\times \rho\times 10}{MW}\\\\M=\dfrac{1\times 0.996\times 10}{46}=0.217[/tex]

Answer:

this is a multiple choice question where are the answers

Explanation:

Answer:

false

Explanation:

Carbon atoms are found in hydrocarbons, naturally occurring compound with carbon and hydrogen, but there are molecules in nature that contain beside carbon and hydrogen, oxygen and nitrogen too. In this compounds there are carbon-oxygen and carbon-nitrogen covalent bonds.

Bellow you may see the chemical structure of adrenaline, a hormon found in the human body, were the oxygen (red) and nitrogen (blue) are bonded to carbon.

Answer:

false

Explanation:

Carbon atoms often naturally bond with each other in chains, rings, plates, or networks, and they also bond readily with hydrogen, oxygen, nitrogen, sulfur, phosphorus, and the halogens.

Answer: Option D:The height of each plant every week

Explanation: In any experiment there are two variables one is independent variable and one is dependent variable.

One values of the experiment that can be changed is the independent variable that is amount of water given to the plants each week.

The values that cannot be changed and is dependent on independent variable is called dependent variable. This means that they change due to the change in the independent variable.

Here, the information that is to be recorded is the dependent variable. Height of each plant every week.

Answer:

The answer would be Helium-8.

Moles in the container : 0.306

Given

30 g of H3PO4

Required

moles in container

Solution

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12  

1 mole = 6.02.10²³ particles  

While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule  

MW of H3PO4 = 3.1 + 31 + 4.16 = 98 g/mol

mol = mass : MW

mol = 30 : 98

mol = 0.306

Answer:

2k

Explanation:

Answer:

+2k

Explanation:

Because +++k and -k answer is ++k

One +Cancel with -

Answer:

Please see the attached image. The one on the left is the first one and the one on the right is the second one.

Hope that helps.

Answer:

That is def true

Explanation:

Answer:

[tex]\boxed {\boxed {\sf \rho \approx 7.917 \ g/mL}}[/tex]

Explanation

Density can be found by dividing the mass by the volume.

[tex]\rho=\frac{m}{v}[/tex]

We know the iron sheet has a mass of 28.5 grams and the volume is 3.60 milliliters.

[tex]m= 28.5 \ g \\d= 3.60 \ mL[/tex]

Substitute the values into the formula.

[tex]\rho=\frac{28.5 \ g}{ 3.60 \ mL}[/tex]

Divide.

[tex]\rho = 7.91666667 \ g/mL[/tex]

Let's round to the nearest thousandth.

The 6 in the ten-thousandth tells us to round the 6 to a 7.

[tex]\rho \approx 7.917 \ g/mL[/tex]

The density of iron is about 7.917 grams per milliliter.

Answer:

Group 1

Explanation:

Alkali metals are the chemical elements found in Group 1 of the periodic table. The alkali metals include: lithium, sodium, potassium, rubidium, cesium, and francium.

Answer:

1

Explanation:

mainly so that you can mark the other one brainliest

Answer:

method to do this given in explaination

Explanation:

divide the number of atoms with avagadro constant and multiply with the molar mass of each atom - to obtain the mass in g

divide the mass with molar mass and multiply with avagadro constant to obtain the number of particles

Answer:

Its mass number is 15

And this element is nitrogen N

Explanation:

Because mass number = number of proton + number of neutrons

So 7+ 8 = 15

Answer:

A. Energy is necessary for bond formation.

C. Breaking bonds takes energy.

D. When bonds are formed, energy is released.

Explanation:

Energy is always required for bond formation because when a chemical reaction occurs, either molecular bonds are broken or other bonds are formed to make different molecules. Energy is released during bond formation and is an exothermic process because bond formation represents a stable configuration and the energy lost is released as heat energy that makes it more stable.

Breaking bonds takes energy and is an endothermic reaction because energy is absorbed to break bonds.

Hence, the correct answer is "A. Energy is necessary for bond formation.

C. Breaking bonds takes energy.

D. When bonds are formed, energy is released."

Answer:

Stoichiometric Values in a Chemical Reaction

Explanation:

The coefficients next to the reactants and products are the stoichiometric values. They represent the number of moles of each compound that needs to react so that the reaction can go to completion.

Answer:

They all have 7 valence electrons on it's outer shell.

Answer:

I have that question rn, I think the best answer is that they tend to form ions with a -1 electric charge.

Explanation:

Answer:

Iron II - pale green

Copper II - blue

Iron III - orange /brown

Nickel - green

Iron and Copper

Carbon = C

Water = C

Aluminum foil = E

Plastic = E

Tin = E

Silicon dioxide = C

Helium = C

Arsenic = C

Carbon dioxide = C

Sodium Chloride = C

Answer:

b

Explanation:

Answer:

I think ur answer would be B

Explanation:

Hope this helps

Answer: d. 47.4%

What is the percent yield of lithium hydroxide from a reaction of 7.40 g of lithium with 10.2 g of water? The actual yield was measured to be 12.1 g.

Answer:

Oh it is convention

Explanation:

because the heat transfer is through fluids

Answer:

The heat absorbed by the water is 228,948.48 J

Explanation:

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

In this way, between heat and temperature there is a direct proportional relationship (Two magnitudes are directly proportional when there is a constant so that when one of the magnitudes increases, the other also decreases; and the same happens when either of the two decreases .). The constant of proportionality depends on the substance that constitutes the body and its mass, and is the product of the specific heat and the mass of the body. So, the equation that allows to calculate heat exchanges is:

Q = c * m * ΔT

where Q is the heat exchanged by a body of mass m, constituted by a substance of specific heat c and where ΔT is the variation in temperature.

In this case:

Replacing:

Q= 4.184 [tex]\frac{J}{g*C}[/tex] *855 g* 64 C

Solving:

Q= 228,948.48 J

The heat absorbed by the water is 228,948.48 J

Answer:

Explanation:

Hope it helps

Answer:

False

Explanation:

Mitosis creates diploid cells, meiosis creates haploid cells.