Ice packs are used to make things cold or to add cold to an injury. Some people use insulated cups to keep things like coffee warm. How are these cups different from an ice pack? How might the molecules inside an ice pack be different from the liquid inside of an insulated cup?

Answers

Answer 1

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Related Questions

HELP 20 points!
In a manufacturing process why would you prefer not to have a limiting reactant?

Answers

Answer:

The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stops. ... The limiting reagent is the one that is totally consumed; it limits the reaction from continuing because there is none left to react with the in-excess reactant.

Explanation:

The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stops. ... The limiting reagent is the one that is totally consumed; it limits the reaction from continuing because there is none left to react with the in-excess reactant.

Which is the IUPAC name for NO?

Answers

Answer:

Nitrogen (ii) oxide

Explanation:

To know the IUPAC name for NO, we shall determine the oxidation number of N in NO.

NOTE: The oxidation number of oxygen (O) is always – 2.

Thus the oxidation number of N in NO can be obtained as follow:

N + O = 0 (ground state)

N + (– 2) = 0

N – 2 = 0

Collect like terms

N = 0 + 2

N = +2

Thus, the oxidation number of Nitrogen (N) in NO is +2.

Therefore, the IUPAC name for NO is Nitrogen (ii) oxide

Answer:

nitrogen monoxide

Explanation:

for those taking quiz on edge

check wether all the answers are correct or not. please?​

Answers

Answer:

I dont now but I think it is correct

You spelled whether wrong

Metal X displaces metal Y. Metal Z does not react with X or Y. What is the correct order of decreasing reactivity for metals X, Y, and Z?

Answers

Answer:

Metals on top of the activity series can displace metals at the bottom and they are highly reactive as compared to metals at the bottom of the series.

Hence, the order is X>W>Y>Z.

The molecule
found in paper is almost identical to the
carbohydrate molecule found in mashed
potatoes.
glycogen
chitin
cellulose

Answers

Answer:cellulose

Explanation:

I just did it.

SECOND SCIENCE WORKSHEET:
Answer the following:
1:
Which type of cell has a cell wall?
2: What is the smallest part of any substance?
3:
What is used to see tiny objects?
4: What name is given to a substance where all the atoms are the
same?
5: What does the safety symbol with flames mean?
6: What gives the ability to do work?
7: Which part of the cell controls all cell activity?
8: By what process does a liquid change to a gas?
I

Answers

Answer:

1 animal cell

2?

3 mircoscope

4?

5 it means whenever you becareful

a cube has a length of 1.02 cm and a mass of .001012 kg what is its density ​

Answers

Answer:

d = 9.5× 10⁻⁴ Kg/cm³

Explanation:

Given data:

Length of cube = 1.02 cm

Mass of cube = 0.001012 Kg

Density of cube = ?

Solution:

The length , height and width of cube is always same. Thus the volume of cube is,

Volume = length × height× width

Volume = 1.02 cm × 1.02 cm × 1.02 cm

Volume = 1.06 cm³

Density of cube:

d = 0.001012 Kg /1.06 cm³

d = 9.5× 10⁻⁴ Kg/cm³

what is 14.235 rounded to the nearest tenth​

Answers

it would end up being 14.2

Answer:

it would round down to 14.2

Explanation:

the 35 is below 50 so it goes down, and it rounds down to 14.2 instead of, if if was, say, 14.62 then that would round up bc the decimal is higher than 50.

but since it is 235, then it rounds down to 14.2

stay safe, TPWK!

What is the net force on a car stopped at a stop sign?

Answers

The car has 0 Net Force, for it is at rest and not moving

In the burning food investigation where you are trying to find out which food contains the most energy - what is the independent variable? *

Answers

Answer:

sorry but i dont know it but you can ask me other things

Perform a DNA extraction from green peas at home or school lab, under adult supervision, by following the given procedure carefully.

Procedure for DNA extraction:

To half cup of split peas, add 1/8 teaspoon of salt and one cup of cold water.
Transfer this mixture in a blender and blend it on high speed for 15 seconds.
Filter the blended mixture, using a strainer, into a measuring container. Observe the amount of mixture you obtain after filtration. Add liquid detergent equal to 1/6 volume of the obtained pea mixture.
Mix by swirling. Allow the mixture to rest for about five to ten minutes.
Transfer this mixture to test tubes. Fill the tubes to about 1/3 of their volume.
Add a pinch of meat tenderizer to each of these tubes. Mix gently to avoid damaging the DNA.
Tilt the test tube, and pour alcohol (75% isopropyl alcohol or 95% ethanol) down the sides of the tube. Add alcohol to about 2/3 volume of the tube. You will obtain two layers. The layer at the top contains the DNA.

Now that you are done with the DNA extraction process, answer the following questions:

What purpose does blending the pea mixture serve?
Why do you need to add liquid detergent?
What role does the meat tenderizer play?
Why is alcohol added and why does the DNA get extracted in the alcohol layer?

Answers

Answer:

Blending is done to break open, or lyse, the cells.

DNA resides in the nucleus, which is enclosed by the nuclear membrane. The nucleus is further enclosed by the cell membrane. So, to get the DNA, we need to break open both the membranes. Cell membranes are made up of lipids and proteins. The detergent molecules to attach to the cell and nuclear membranes, causing them to break open.

Meat tenderizer contains the enzyme protease that helps cleave proteins. Even after breaking open the nucleus and cell membrane, the DNA is still protected by cell proteins. Meat tenderizer cleaves the proteins, leaving behind only the DNA molecule.

DNA is insoluble in alcohol and hence, when alcohol is added, it precipitates out the DNA.

Explanation:

PLATO Answer

When a piece of sodium metal is kept in water in chemical equation​

Answers

Explanation:

Sodium metal reacts rapidly with water to form a colourless basic solution of sodium hydroxide (NaOH) and hydrogen gas (H2). The reaction continues even when the solution becomes basic. The resulting solution is basic because of the dissolved hydroxide. 

Explanation:

Sodium metal reacts rapidly with water to form a colourless basic solution of sodium hydroxide (NaOH) and hydrogen gas (H2).

In the periodic table hydrogen is placed in Group 1A (group 1) and helium is placed in Group 8A (group 18). The most likely reason for this is:

Answers

Answer:

This question appears incomplete

Explanation:

This question appears incomplete because of the absence of options. However, hydrogen is placed in group 1 because it has just one electron in it's outermost shell (which happens to be the only shell it has) just like every other group 1A/group 1 element. While helium is placed in group 8A/group 18 because it has a completely filled outermost shell (which is also the only shell it has) just like every other element in group 8A/group 18.

In the periodic table hydrogen is placed in Group 1A (group 1) and helium is placed in Group 8A (group 18). The most likely reason for this is configuration, energy level and properties.

Hydrogen is located in group 1 of the periodic table, although its electronic configuration is 1s¹ and its properties do not correspond to those of the alkali metals of that group. But in its electronic configuration you can see that it has only one electron in its outermost shell (which turns out to be the only shell it has), just like any other element of group 1A /group 1, so it is located in that group.

On the other hand, although the electronic configuration of helium is 1s², this element does not appear in group 2 of the periodic table of elements, but is placed in group 18. This is because it has the energy level complete, so it has the properties of a noble gas, that is, it is inert (it does not react), and it is a colorless and odorless monatomic gas.

In summary, in the periodic table hydrogen is placed in Group 1A (group 1) and helium is placed in Group 8A (group 18). The most likely reason for this is configuration, energy level and properties.

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(10 POINTS PLS ANSWER IF U KNOW)
Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation? Explain why.

Answers

Answer:

Competition

Explanation:

Peppered moths get their color in lieu to become the fittest among all so that they can survive easily. During industrial age, when pollution suddenly became high these moths changed their color through evolution in order to save themselves from their predators.

PLS GIVE BRAINLIEST

Where else have you heard the term conservation? How does the term's meaning in that other context relate to its meaning in chemistry? please help me im so confuseddd

Answers

Answer:

See the answer below

Explanation:

Conservation is also a topic in Biology and it refers to the practice of managing natural resources - both living and non-living - with the aim of preserving them to secure the future of the human population.

Conservation in Chemistry refers to the property of chemical reactions in which no new matter or energy is created nor destroyed during the course of the reactions, although they can be converted from one form to another.

Conservation in Biology and Chemistry can be likened to each other based on the fact that both deal with preservation. While conservation in Biology focuses on how the ecosystem can be preserved, conservation in Chemistry deals with the preservation of matter/energy.  

Question 1
The best alternate headline for this article would be
o Scientists Find 500 Planets Outside Earth's Solar System
O Newly Discovered Exoplanet Has Earth-like Temperatures-Plus Water!
O Scientists Find "Goldilocks Zone" in Space-Neither too hot nor too cold!
Newly Discovered "Goldilocks" Planet Might Be Right for Life

Answers

Answer:

by Judith Curry On what we can learn from Goldilocks and The Three Bears ... In planetary science, the 'Goldilocks zone' is terminology for the the band ... We all know the fairy tale story of “Goldilocks and the three bears”, where GL ... as the discovery that the Earth was not the center of the solar system.

Explanation:

Aqueous solutions of sodium carbonate and magnesium chlorate are mixed, what is the precipitate, chemical equation, complete ionic equation, and net ionic equation

Answers

Answer:

Explanation:

Na₂CO₃ (aq)+ MgCl₂ (aq) =  MgCO₃(s)  +2NaCl (aq)

MgCO₃(s) is the precipitate .

Ionic equation

2 Na⁺¹ + CO₃⁻² + Mg⁺² + 2 Cl⁻¹ = MgCO₃(s) +2 Na⁺ + 2 Cl⁻

net ionic equation

Mg⁺² + CO₃⁻² = MgCO₃ (s) .

The precipitate formed in the reaction has been the magnesium carbonate salt.  The net ionic equation will be: [tex]\rm Mg^2^+\;+\;CO_3^2^-\;\rightarrow\;MgCO_3[/tex].

The mixture of sodium carbonate and magnesium chlorate has been given as:

[tex]\rm Na_2CO_3\;+\;MgCl_2\;\rightarrow\;MgCO_3\;+\;NaCl[/tex]

The precipitate formed in the reaction has been the magnesium carbonate salt.

The chemical equation has been written as the equation with the states of the reactants and the products.

[tex]\rm Na_2CO_3\;(aq)\;+\;MgCl_2\;(aq)\;\rightarrow\;MgCO_3\;(s)\;+\;2\;NaCl\;(aq)[/tex]

The ionic equation for the reaction has been:

[tex]\rm Na_2CO_3\;\rightarrow\;2\;Na^+\;+\;CO_3^2^-[/tex]

[tex]\rm MgCl_2\;\rightarrow\;Mg^2^+\;+\;2\;Cl^-[/tex]

[tex]\rm MgCO_3\;\rightarrow\;Mg^2^+\;+\;CO_3^2^-[/tex]

[tex]\rm NaCl\;\rightarrow\;Na^+\;+\;Cl^-[/tex]

The ionic equation for the reaction will be:

[tex]\rm 2\;Na^+\;+\;CO_3^2^-\;+\;Mg^2^+\;+\;2\;Cl^-\;\rightarrow\;MgCO_3\;+\;2\;Na^+\;+\;2\;Cl^-[/tex]

The net ionic equation has been consisted of the products that have been different on both the product and the reactant side. The same ions are eliminated in the net ionic equation. The net ionic equation will be:

[tex]\rm Mg^2^+\;+\;CO_3^2^-\;\rightarrow\;MgCO_3[/tex]

For more information about the net ionic equation, refer to the link:

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Why is it that no two elements have the exact same emission spectrum?​

Answers

Answer:

When atoms are excited they emit light of certain wavelengths which correspond to different colors. Each element produces a unique set of spectral lines. Since no two elements emit the same spectral lines, elements can be identified by their line spectrum.

Explanation:

1. Glucose, a type of sugar, has the formula
CH, O. What is the total number of atoms
in one molecule of glucose?

Answers

Answer:

The answer is 24 in total

Explanation:

This is a 2:1 ratio. The formula of it is C6 H12 O6

if you had a chance to get a scholarship abroad?what would you do?​

Answers

Answer:

I Would bc it's the better opportunity

Which compound in the picture has a central atom with four outside atoms and has at least one nonpolar bond.

Answers

Answer:

The answer is:

B

Explanation:

The compound in Option B is Methane.

Methane is known to be a compound which has two elements, carbon and hydrogen. It has a central atom which is surrounded by four hydrogen atoms. It's chemical formula is CH4.

Methane's outer atoms are dipoles and are in the same direction. This makes the overall molecule non-polar. The compound itself has non-polar bonds and it is non-polar itself.

How does a liquid substance change into gas? ​

Answers

Answer: heat

Explanation:

Is that heat boils the liquid and the liquid eventually evaporated into gas

Analysis of a sample of an oxide of nitrogen gave 47% of nitrogen.What is the empirical formula of the oxide?

Answers

Answer:

N2O

Explanation:

hope am right.....

pls I need help give away 11 points
A particle has a nucleus that contains 10 protons and around the outside it has 8 electrons. What is the overall charge of the particle?
0
+2
-2
+18

Answers

Answer:

The charge is +2

Explanation:

Protons are positive, electrons are negative. 10-8=2.

+2 :)

A particle has a nucleus that contains 10 protons and around the outside it has 8 electrons, the overall charge of the particle is +2. Therefore, the correct option is option B.

What is atom?

The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.

Space makes up the majority of an atom. The remainder is made up of a cloud of electrons with negative charges around a positive-charged nucleus made up of protons and neutrons. Compared to electrons, that are the lightest positive ions in nature, the nucleus is tiny and dense. A particle has a nucleus that contains 10 protons and around the outside it has 8 electrons, the overall charge of the particle is +2.

Therefore, the correct option is option B.

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#SPJ6

An astronaut is working outside a spaceship and realizes that the cord attaching him to the
spaceship has been broken. To move back to the spaceship in the vacuum condition, he
throws a heavy tool to the opposite direction from the spaceship. Which law of motion does
he apply?
Does he apply:
A. Newton’s Second Law of Motion
B. Law of Conservation of Energy
C. Newton’s Third Law of Motion
D. Newton’s First Law of Motion
Need helpASAP

Answers

it would be: B if i’m wrong i’m so sorry

Which machine is the least simple? a bike a screw an inclined plane a lever

Answers

Answer: A bike

A bike is composed of various simple machines. It has a wheel and axle as one component, and it also has screws to hold the various parts together, along with levers and pulleys that are connected to the pedals. So all of these simple machine concepts work together to help transport the rider from point A to point B.

The other answer choices of screw, inclined plane, and lever, are fairly simple machines that don't have many things going on at once compared to a bike.

The least simple machine is "A Bike"

Hope this helps!

Arrange the elements in order of increasing ionization energy. Use the
periodic table to identify their positions on the table.
Drag each tile to the correct box.
Hola
Tiles
chlorine
fluorine
gallium
phosphorus
Sequence

Answers

Answer:

Gallium - Phosphorous - Fluorine - Chlorine

Explanation:

Answer:

Gallium < Phosphorus < Chlorine < Fluorine

Explanation:

<3

whats the balanced chemical equation for the standard formation reaction of solid glucose, where everything can only have 1 mole with physical states.

Answers

Answer:

6C(s) + 6H2(g) + 3O2(g) --------------------> C6H12O6(s).

Explanation:

One of the examples under the type of sugar; monosaccharide(simple sugar) is the glucose. Glucose(with IUPAC name as D-glucose) as a monosaccharide (simple sugar) has the molar mass of 180.156 g/mol and a Melting point of 146 °C.

Thus, the unbalanced chemical reaction for the formation of glucose is given below;

C(s) + H2(g) + O2(g) --------------------------> C6H12O6(s) ΔH°f = -1273.1KJ/mol.

The balanced chemical reaction for the formation of one mole of glucose is given as;

6C(s) + 6H2(g) + 3O2(g) --------------------> C6H12O6(s).

The balanced chemical equation for the standard formation reaction of solid glucose is: [tex]\mathbf{6C_{(s)} + 6H_{2(g)} +3O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ }[/tex]

Glucose is a simple sugar of a class of carbohydrates known as monosaccharides. It is the principal metabolite for energy production in the human body.

The formation of solid glucose [tex]\mathbf{C_6 H_{12} O_6_{(s)}}[/tex] occurs by the reaction of carbon, hydrogen, and oxygen.

The reaction formation of the solid glucose is:

[tex]\mathbf{C_{(s)} + H_{2(g)} +O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ \Delta H_f^0= -1273.1 \ kJ/mol}[/tex]

Now, the balanced chemical equation can be expressed as follows;

[tex]\mathbf{6C_{(s)} + 6H_{2(g)} +3O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ }[/tex]

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i need help people :0

Answers

install a ceiling fan , and avoid wasting water.

which description of salt is a chemical property?

No combustion

Odourless

salty taste

solid does not conduct electricity

Answers

Answer: No combustion

Explanation:

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A 46-year-old, 230lb woman with a family history of breast cancer. She is up to date on yearly mammograms. She has a history of HTN. She complains of hot flushing, night sweats, and genitourinary symptoms. She had felt well until 1 month ago and she presented to her gynecologist for her annual gyn examination and to discuss her symptoms. She has a history of ASCUS about 5 years ago on her pap, other than that, Pap smears have been normal. Home medications are Norvasc 10mg qd and HCTZ 25mg qd. Her BP today is 150/90. She has regular monthly menstrual cycles. Her LMP was 1 month ago.Required:Post a brief description of your patients health needs from the patient case study you assigned. Son los zapatos__Doris.A. conB. deC. sinD. a Which underlined phrases in the following sentences support the idea that the area Cabot found was valuable to Europeans?1.He didnt find a shortcut. Instead, he found an area of the Atlantic Ocean crowded with fish!2.Sailors scooped them into baskets dropped from the sides of their ships.3.Colonists who moved to the area built a fishing industry that exported, or sent, dried fish to Europe.4.Fishing is still important to the economy of this area today. The area model shows 2 and one-third. What is 2 times 2 and one-third? If pand q vary inversely and pis 28 when Q is 29. determine q when p is equal to 14. The memory of facts and experiences that people consciously know and can easily recite is known asmemory There are screws all around you. Name five examples of screws that you see in everyday life? Think broadly! Which is a disadvantage of asexual reproduction? A bakery uses a muffin recipe that uses 1/2 cup of milk for every batch of 12 muffins...... Select Each Correct Answer............ A.(1/24 cup of milk is used to make each muffin.)....B(.1/24 cup of milk is used to make each muffin) C.(1/6 cup of milk is used to make each muffin.) D.(1 cup of milk is used to make each muffin). E. (1 cup of milk is used to make every 12 muffins). F.( 1 cup of milk is used to make every 24 muffins) Circle A has a diameter of approximately 20 inches and an area of approximately an area of 300 in Circle B has a diameter of approximately 60 inches Which of these could be the area of circle B? A. About 100 in^2 B. About 300 in^2 C. About 900 in^2 D. About 2700 in^2 What is the distance between -3 and 12 7) A moving object is rolling on a surface that is 5 m off the ground. The object is moving at a constant speed of 4 m/s. If the object is 3.2 kg, what is the final energy of the ball after rolling for 10 m, assuming friction is negligible?156.8 J 131.2 J 182.4 J25.6 J8) A spreadsheet application is used to create a computational model of the energy experienced by a pendulum. How do the energy values of the pendulum relate?The sum of the potential energy and the kinetic energy is always constant.The sum of the potential energy and the kinetic energy is always 0.The potential energy is always greater than the kinetic energy.The kinetic energy is always equal to the potential energy. Using Python Write an expression using Boolean operators that prints "Special number" if special_num is -99, 0, or 44.Sample output with input: 17Not special number 11. In Peppermint Patty's letter home to her grandmother, what does sheclaim the founding fathers are debating about behind closed doors? In general, women in Athens do you think your future career will continue to become more and more reliant on computers and is it a good thing to depend so fully on computers to help with work skills and careers Help plz lots of points List down the problems seen in gender identity in Nepal and mention the effortsmade for its solution.How does our national flag glorify the nation's pride?Why is the national anthem considered our national pride?"Diverse and unique culture is our national pride." Justify with examples.Janaki Temple and Pashupatinath Temple are increasing our pride.' How?How has Mount Everest preserved our national pride? Explain. convert the decimal number 191 into an binary number Sally spent a long time searching for the perfect tree. She could look in 6 stores in 45 minutes. If she shopped for 2 hours, how many stores did she visit?