Which of the following
happens when a substance
melts?

Which Of The Followinghappens When A Substancemelts?

Answers

Answer 1

When a substance melts, the solid gains heat, and the motion of the particles increases (particles move faster in liquid form than in solid form).


Related Questions

The solids and liquids with the strongest intermolecular forces of attraction will have the
lowest melting and boiling points.
a. TRUE
b. FALSE

Answers

trueeee!!!
step by step explanation

Assignment Summary For this assignment, you will construct a scientific model of the water cycle to show how water is recycled through an ecosystem. Once you have drawn your model on a poster board, you will write one to two paragraphs explaining how water is transferred within and between organisms and the environment. Background Information Water is a very important compound. Organisms need water to carry out life-maintaining processes such as growth and development. Without water, living things will not survive. Water continually flows among the atmosphere, land, water, and living organisms. This process, called the water cycle, allows water to be recycled as it moves through Earth’s spheres. Materials Assignment Instructions Step 1: For this project, you are expected to submit the following: 1. Your model of the water cycle 2. One to two typewritten paragraphs describing the water cycle Step 2: Prepare for the project. a) Read through the guide before you begin so you know the expectations of this project. Pay particular attention to the instructions you need to follow to create a model on your poster board. b) If anything is not clear to you, be sure to ask your teacher. Step 3: Gather materials for the model. a) Start with a blank poster board. Be sure to put your name on it. b) You may either draw the parts of the water cycle or print images to construct a model on your poster board. Gather any drawing tools that you will need, or print any images you want to use. Step 4: Create a model of the water cycle. a) Your model should include bodies of water such as lakes and oceans, organisms, air, and land. b) Draw arrows indicating how water moves within an ecosystem and between organisms and their environment. Be sure to include the Sun and gravity in your model. c) Include short phrases on your poster that summarize what occurs at each stage of the water cycle Step 5: Write a paragraph describing the water cycle. a) Type one to two paragraphs describing the full water cycle. Be sure to use full sentences and proper grammar.

Answers

Answer:

Explanation:

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.

edge 22

which of the below would result in rearrangement of atoms at molecular level

a) salt dissolved in water
b) broken tree branches
c) gasoline combusts in an engine
d) steam rising from hot pavement

Answers

The best answer is

A) The atoms in the mineral get rearranged

Explanation:

someone please give me a sentence using “chemical bond”

Answers

Answer:

Rust, iron oxide, is weak mechanically although its chemical bonds are strong.

Explanation:

please help me and you get Brainliest is anyone go to answer my question

Answers

Answer: mitosis results in two. meiosis results in four.

Explanation:

Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells

What's the final overall charge for sodium and fluoride ?

Answers

Answer:

Sodium fluoride is conceived to be composed of equal numbers of

Na+ and F− ions that are electrostatically bonded together in an extended, non-molecular array. And therefore sodium fluoride is neutral.

Explanation:

What is a Conclusion?
A. What you figure out by doing an experiment
B. the group that does not take part in the Experiment
C. The data that you record during an Experiment
D. What you think is going to happen in an Experiment.

Answers

Answer:

A

Explanation:

using process of elimination, B would be, and I forget, but I think it's the controlled variable or one type of variable. C would be analysis or just data I guess. and D would be hypothesis

A. It’s a end statement that shows what you learned and concluded about the experiment.

ANSWER ASAP What are the ions present in the compound MgO? * 1
(1 Point)
Mg2+ and O-
Mg2- and O2+
Mg+ and O-
Mg2+ and 02-

Answers

Answer:

mg+ and O-

Explanation:

HOPE IT HELPS

The age of the seafloor __________as you move away from the mid ocean ridges to deep ocean trenches

A decreases
B increases
C does not change

Answers

the answer is B-increases

Answer:

stays the same

Explanation:

because the ocean floor usually doesn't spread instead the ocean floor plunges into deep under water canyons called deep ocean trenches.

HELP I HAVE TO SUBMIT IN 5 MINS!!!!!!! :( I HAVE NO IDEA!!!

Answers

742 - 21.1 = 720.9 torr

Maria walked on a beach made mostly of sand. She walked barefoot
on the beach early in the morning, and the sand was cool. When she
walked in the same area in the afternoon, the sand was hot.
Which statement best describes why the temperature of the sand
increased?

Answers

A: The atoms in the sand were moving more quickly

The statement that the atoms in the sand were moving more quickly best describes why the temperature of the sand is increased. The relationship between kinetic energy and temperature is explained here.

What is the relationship between kinetic energy and temperature?

The temperature of a body is directly proportional to the kinetic energy. The energy acquired by those molecules which are in motion is called the kinetic energy.

The radiation of the sun falls on a number of objects on our surroundings. The objects absorb this energy till afternoon due to which they become hot.

When Maria walked in afternoon, the sand was hot as its particles have gained the kinetic energy due to which they move rapidly from one place to another. So that the sand feels more hot in the afternoon.

Thus the atoms in the sand were moving more quickly best describes the increase in temperature of the sand.

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Calculate the specific heat of glass from the following data. The temperature of a piece of glass with a mass of 65 g increases by 26°C when it absorbs 840 J of heat energy.

Answers

Answer:497J/kg/K

Explanation:

Use the equation: Q=mS◇T

According to specific heat capacity, the specific heat of glass is 0.4970 J/gK.

What is specific heat capacity?

Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.

It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.

It is given by the formula ,

Q=mcΔT

Substituting values in above equation, c=Q/mΔT, C=840/65×26=0.4970 J/gK.

Thus, the specific heat of glass is 0.4970 J/gK.

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what are three uses of oxygen ?

Answers

Answer:

Production Of Steel Plastics and textiles

Explanation:

It is many more etc

The amount of matter in an object is its
OA. Volum
OB. mass
Oc. density
OD. charge

Answers

The correct answer is A volume

The statue of Liberty is made out of copper metal. When it was first constructed, the color of the copper metal was bright burnt orange.
Over time, however, it slowly developed a green color as it was exposed to air. What happened to the statue of liberty?

Answers

When the Statue was unveiled in 1886, it was a shiny brown color, like a penny. By 1906, the color had changed to green. The reason the Statue of Liberty changed colors is that the outer surface is covered with hundreds of thin copper sheets. Copper reacts with the air to form a patina or verdigris.

Hope this helps and good luckkk :)

Explanation:

The green color of the Statue of Liberty was due to the outer surface covered with hundreds of thin copper sheets. Copper reacts with the air to form a patina or verdigis

reduces frictions creation of thermal energy
A: lubricant
B: electric heater
C: cell phone

Answers

It is A lubricant that reduces frictions creation

HELP ME PLEASE !!! I.D.K WHAT TO DO :((( Will mark brainliest please !!

Answers

I’m sorry but where’s the worksheet lol......

Answer:

bri me jose my new account

Explanation:

How does the ionosphere help radio transmission?

Answers

Due to the ability of ionized atmospheric gases to refract high frequency (HF, or shortwave) radio waves, the ionosphere can reflect radio waves directed into the sky back toward the Earth. Radio waves directed at an angle into the sky can return to Earth beyond the horizon.


I hope this helps !

Explanation:

 ionosphere can reflect radio waves directed into the sky back toward the Earth

how many electrons elements are present in period 2 ?​

Answers

There are Eight elements
there are 8 elements

what would be the colour of litmus in sodium carbonate?
will make brainliest

Answers

Answer:

the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature

how many atoms are there in 1g of argon the Avogadro constant is 6.02 x 10^23 per mole relative atomic mass (Ar): AR=40

Answers

Answer:

ow many atoms are there in 1g of argon the Avogadro constant is 6.02 x 10^23 per mole relative atomic mass (Ar): AR=40Explanation:

The number of atoms of argon in 1g of argon is 1.5 × 10²² atoms

From the question,

We are to determine the number of atoms present in 1g of argon.

To determine this,

First we will calculate the number of moles of the 1g of argon

From the formula

[tex]Number\ of\ moles = \frac{Mass}{Atomic\ mass}[/tex]

From the given information

Mass of Argon = 1g

Atomic mass of Argon = 40g/mol

∴ Number of moles of Argon = [tex]\frac{1}{40}[/tex]

Number of mole of Argon = 0.025 mole

Now,

For the number of atoms of argon present

Using the formula

Number of atoms = Number of moles × Avogadro's constant

∴ Number of atoms of argon present = 0.025 × 6.022×10²³

Number of atoms of argon present = 1.5055 × 10²² atoms

Number of atoms of argon present ≅ 1.5 × 10²² atoms

Hence, the number of atoms of argon in 1g of argon is 1.5 × 10²² atoms

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Both the stomach and the small intestine are involved in the digestion of food.
The churning of food by stomach muscles and peptidase enzymes in the small
intestine both break food molecules into smaller molecules.
Which statement best describes changes to food during digestion?

Answers

Answer: I think the answer is The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.

Explanation: Because the muscles would make the food smaller and the enzymes have a chemical change to it because it changes the molecules in the food.

The chemical processes in food digestion results in the formation of new

substances.

The statement that best describes the changes in food during digestion is;

The churning of the food is a physical process, which results in physical changes while the peptidase results in chemical changes of the food.

Reasons:  

The given processes in the digestion of food are;

Stomach: Food churning is the process by which the small intestine vigorously turns ingested food.

Small intestine: The action of the peptidase enzyme is to increase the rate of the digestion of food.

Therefore;

The churning of the food is a physical process, which results in physical changes while the peptidase results in chemical changes of the food.

Learn more here:

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The possible question options obtained from a similar question online are;

The churning of the food and peptidase action both results in chemical changes.The churning of the brings about a chemical change, while the peptidase results in a physical change.The churning action brings about physical change, while the peptidase brings about chemical change.Both the churning action and the action of the peptidase result in chemical change.

I need help on these 3 questions really fast
i’ll give brainliest!!!! QUICK

Answers

Answer:

10. The wavelength of the color red is 650 × 10⁻⁹ m

11. The frequency of the color red is approximately 4.6122 × 10¹⁴ Hertz

12. The corresponding energy  is approximately 3.058 × 10⁻¹⁹ J

Explanation:

10. Given that the wavelength, λ, of the color red is 650 nm, and one nanometer, nm = 10⁻⁹ m, we have;

The wavelength of the color red = 650 × 10⁻⁹ m

11. The frequency, v, of the color red is obtained from the relation, v = c/λ

Where;

c = The speed of light = 299,792,458 m/s

∴ v = 299,792,458/(650 × 10⁻⁹) ≈ 4.6122 × 10¹⁴ Hertz

12. Given that energy emitted by light, E = h × v, where E = 6.63 × 10⁻³⁴ J/s, we have;

E = 6.63 × 10⁻³⁴ J·s × 4.6122 × 10¹⁴ Hz ≈ 3.058 × 10⁻¹⁹ J

Therefore,  the corresponding energy, E ≈ 3.058 × 10⁻¹⁹ J.

Iron has a known density of 7.87 g/cm3. What would be the mass of a 2.5
cm3 piece of iron?

Answers

if i am not mistaken ,

density = mass / volume

density = 7.87 g/cm3
volume = 2.5 cm3

thus ,
mass = density x volume

7.87 g/cm3 x 2.5 cm3 = 19.675 g

Convert 48.5 grams of water to moles of water

Answers

Answer:

2.70 mol of water.

Explanation:

divide the given mass by the molar mass of water. 48.5 / 18.016g = 2.70 mol water.

May someone pls help me with this!

Answers

Answer:

Explanation:

1. Chemistry

2. Atoms

3. Anode

4. Cathode

Which term refers to the ability to do work?
energy
power
force
motion

Answers

Answer:

Energy

Explanation:

Answer: energy

Explanation:just learned it last month

What is the random mixing of gas molecules called?
O A. Volume
O B. Temperature
C. Diffusion
O D. Pressure

Answers

Answer:

C. Diffusion

it is called diffusion

I believe the answer is C. Diffusion.

Which of the following is a stable ion that exists under ordinary conditions?


N3-


Al+


Li2+


F2-

Answers

Answer:

Hmm 65

Explanation:

Help, and fast! I really need an answer to this.

Answers

Answer:

Explanation:says these bars are like co vid i get em right off teh bat

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