All categories

2 years ago

Explain how the addition of thermal energy (heat) from matter affects its particles

Chemistry

1 answer:

MakcuM [25]2 years ago

8 0

Answer:

when a substance is heated it gains thermal energy. Therefore its particles move faster and its temperature rises. when a substance is cool it loses thermal energy which causes its particles to move more slowly and its temperature to drop

You might be interested in

Disposal site for solid waste

Alexxandr [17]

Answer:

"where deliberately discarded solid waste is discharged, deposited, injected, dumped, spilled, leaked, or placed so that such solid waste or a constituent thereof may enter the environment or be emitted into the air or discharged into waters, including ground waters."

Explanation:

https://definitions.uslegal.com/s/solid-waste-disposal-site/

7 0

2 years ago

Write the congruence condition in symbolic form for each pair of triangles in pic above. If wrong answer I will report. If corre

arsen [322]

Answer: ABC&AMN are congruent by ASA comgruence

angle A=A

sideAN=AB

angle M=C

Explanation:

4 0

2 years ago

Which number should be placed before H20 on the products side of the equation to

timama [110]

<h2>The required balanced equation:</h2><h2> $C_3H_8 +5O_2 = 3CO_2 + 4H_2O$ </h2>

Explanation:

• Propane when reacts with oxygen it gives carbon dioxide and water.

In order to make the equation balanced at both ends of the equation,

Add 4 as a coefficient before on L.H.S (Left Hand Side) of Equation.

• Therefore, the required balanced equation is:

Propane, when added with 5 molecules of Water, yields 3 molecules of Carbon Dioxide and 4 molecules of water, as shown in the below equation -

$C_3H_8 +5O_2 = 3CO_2 + 4H_2O$

8 0

2 years ago

You drink out of a drinking fountain for a full minute. How many moles of water did you just drink? (You need to know how much w

Mila [183]

First of all water (H2O) is made from 2 atoms of hydrogen and 1 atom of oxygen. A mole of water molecules would be 2 moles of hydrogen atoms plus 1 mole of oxygen atoms. So lets say x = 3m, m=1, and x=3, because 3 x 1 = 3 = x, and r = radius of drinking fountain's water dispense, and AOW = amount of water produced in a minute, and y = (x*(r*(AOW/r))... So Y = a, and a = answer... Meaning your answer is (y = (x*(r*(AOW/r)) )!

5 0

3 years ago

A,B and C have the following solubilities in 100 mL of water at 25°C, respectively: 15g, 35 g and 65 g. If 75 g of each are adde

Pani-rosa [81]

Answer:

<u>Only C can dissolve in water because its solubility is greater than 0.375 g/mL</u>

<u>C dissolves completely</u>

22.5 g of A remain undissolved in 100 mL of water

2.5 g of B remain undissolved in 100 mL of water

<u></u>

Explanation:

Solubility : The amount of salt that can be dissolved in a given volume of solvent at a particular temperature .

$Solubility = \frac{mass}{volume}$

For each salt the solubility of 75 g in 200 mL water is

$Solubility = \frac{75}{200}$

0.375 g/mL

This mean 1 ml of water has 0.375 g of A , B and C

<u>100 mL of water contain = 37.5 g of each salt A , B,C</u>

In the question , the solubility of A , B and C in 100 are given as :

A = 15 g : It means maximum 15 g of A can dissolve in 100 mL

$Solubility = \frac{15}{100}$ = 0.15 g/mL

B = 35 g : It means maximum 35 g of B can dissolve in 100 mL

$Solubility = \frac{35}{100}$ = 0.35 g/mL

C = 65 g : It means maximum 65 g of A can dissolve in 100 mL

$Solubility = \frac{65}{100}$ = 0.65 g/mL

Since ,Solubility of A and B is less than 0.375 g/mL

<u>So A and B can't dissolve in water at 25°C</u>

A is excess by 37.5 - 15 = 22.5 g

B is in excess by 37.5 - 35 = 2.5 g

<u>Hence 22.5 g of A remain undissolved</u>

<u>Hence 2.5 g of B remain undissolved </u>

<u>Only C can dissolve in water because its solubility is greater than 0.375 g/mL</u>

<u></u>

6 0

3 years ago