use the particle theory to explain why hot chocolate powder dissolves more rapidly in hot water than cold water

Answers

Answer 1

Answer:

2) To dissolve, solvent particles must come in contact with solvent particles. Particles of hot water are moving much more rapidly than particles of cold water. Hence, in hot water more water particles will come in contact with hot chocolate powder than in cold water, resulting in faster dissolving.

Explanation:

Related Questions

Which contains all the known elements and information about them?
A.the elements chart
B.the modern table
C.the periodic table of elements
D.none of the above

Answers

C. The periodic table of elements

Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex

Answers

Answer:

The answer is C.

Explanation:

Please give brainliest

Answer:

Explanation:

complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.

Which correctly lists the three gases that are part of Earth's cycles in both the atmosphere and biosphere?
O radon, carbon monoxide, oxygen
O carbon dioxide, nitrogen, oxygen
O nitrogen, carbon dioxide, carbon monoxide
O carbon dioxide, radon, oxygen

Answers

Answer:

The correct answer is actually, B) carbon dioxide, nitrogen, oxygen

Answer:

Explanation:

Chlorine and Oxygen
Formula:
Name:
Bond:
What is it:

Answers

Formula : ClO3-
Name: Chlorate
Bond : Single (I think)
What is it : usually a gas

I only now the formula CIO3-

Human obtain electricity through fossil fuel, nuclear, solar, geothermal, wind, biomass, and hydroelectric power.

For at least two of these, explain ways that using this resource could pollute freshwater.

Answers

For fossil fuel: Oil spills and leaks during extraction or transport can pollute water sources.

For nuclear power: An uncontrolled nuclear reaction can result in widespread a contamination of water.

if would make the environment smoother and safer for all of the animals and save plants,trees,oil

Whoever answers first gets brainlist

Answers

Largest root system is the answer

so you can mark them brainliest!! that is the answer

The Law of Conservation of Energy states...

A) energy cannot be created, but it can be destroyed and change forms
B) energy cannot be created, destroyed, or change forms
C) energy cannot be created or destroyed, but it can change forms
D) energy can be created, destroyed, and can change forms

Answers

Answer:

C) energy cannot be created or destroyed, but it can change forms

Explanation:

The correct answer is C. :)

Boron (B): 1s 2s 2p
E=
F=
G=

Answers

Answer:

E=2

F=2

G=1

Explanation: this is the answer promise

Answer:

E=2

F=2

G=1

Explanation:

What is an example of diffusion?

Answers

Answer:

Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere

Explanation:

Smelling a candle, cigarette smoke

HELP PLS
4. What would you use iodine to test for?

5. What is involved with the Benedict’s test?

6. Explain how mass and weight differ. Which one would be different on the moon versus on Earth?

Answers

Explanation:

4.iodine would be used to test for sugar

6. mass is constant everywhere while weight differs from place to place due to gravity changes

4. Test for starch - turns blue black if present
5. Test for reducing sugars - mix solution with Benedict’s reagent and put in water bath for ~30 min, greater colour change means more sugars present
6. Mass is scalar quantity relying on magnitude only as it is the measure of matter within an object, whilst weight is how strongly an object is pulled towards an object of greater mass due to gravity

How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)

a. The atom’s volume increases.

b. The atom’s mass increases.

c. The atom becomes positively charged.

d. The atom becomes negatively charged.

Answers

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

C the atom becomes positively charged

help quick............

Answers

Atomic number: 42

Chemical symbol: Molybdenum (Mo)

Number of protons: 96

Atomic mass: 96

Number of electrons: 42

Number of valence electrons: 5

Number of electrons in the n=3 shell: 42

Number of neutrons: 54

What kind of rocks would you expect to see on Mars? What evidence supports your response?

Answers

Mars' surface is largely covered with basalt, a volcanic rock covering much of Earth's surface as well. Earth has large amounts of granite in its crust, which Mars appears to lack.

Based on the composition of the martian meteorites and the presence of plains and mountains that look like features produced by basaltic volcanism on Earth, geologists expected to find primarily basalts on Mars.

plssssssssssssssssssmejepleplele

Answers

Answer:

Yes the two of the answer is True

yes that answer is correct

Which of the following was a major focus of the Mississippian belief system?

physical connection
an anointed leader
a single deity
spiritual connection

Answers

Answer:

i think answer is spiritual connection

spiritual connection

In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.

Answers

Answer:

No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.

No it would not conduct electricity as it is a insulator

A small gap is left between the rails in the railway track. Analyze the reason.

Answers

Answer:

There could be several possible reasons for a small gap between rails on a railway track, such as:

1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.

2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.

3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.

4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.

These are some of the possible reasons for a small gap between the rails on a railway track.

Answer:

The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.

Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.

Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.

Do you think rayon when burnt will stick to the body like other synthetic fibers?

Answers

In other words, since rayon is made from the plant fiber it does not get stick to our body while we burn it

it will not stick to the body most likely

What is the charge on the Cr in Cr2O72-

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

atoms and molecules are made up of

Answers

Les atomes sont composés de protons, électrons et neutrons.

Research, find and display references (include a description and a picture) for water cycle, nitrogen cycle and carbon cycle. I have a project

Answers

Answer:

I hope this helps

Explanation:

Research, find and display references (include a description and a picture) for water cycle, nitrogen

Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

Answers

Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the story of how it got there in the first place and what happened to it next, if no human picks it up and it remains in the environment.
Follow your atom through at least one plant, one animal, and one decomposer.
There are possibly multiple paths your atom can take, but you only need to choose one for your story.
Explain how your atom gets from one point to the next.
You can use evidence from your notebook to help you tell your story.
You can use words and pictures to tell your story.

and dont just put a random answer

Answers

Answer:

I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.

Explanation:

in a neap tide, the moon's effect on blank

Answers

Answer:

Neap tides occur during the first and third quarter moon, when the moon appears "half full"

PLEASE HELP!!!!!!
Describe the relationship between the three processes important to sedimentary rock formation: deposition, compaction and cementation.

and

How do you think the formation of fossils in sedimentary rock disrupts or alters the process of sedimentary rock formation? In other words, how does the formation of a fossil fit into the process of sedimentary rock formation? Defend your answer.

Answers

Answer:

I can't help sorry

Explanation:

Answer:

Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.

Explanation:

hope this helps

When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.

Answers

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s