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Alika [10]
1 year ago
10

2a. What is the difference between weight and mass?

Chemistry
1 answer:
Dafna1 [17]1 year ago
3 0
Mass is the amount of matter in the body.

Weight is the measure of force.
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Which of the following statements are true? (There are 2)
Shalnov [3]

Answer:

A and B

Explanation:

the other two make no sense at all

4 0
3 years ago
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What are the limitations of using chemical indicators in determining the pH of a given solution?
tino4ka555 [31]

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1) chemical indicators won't work above it's pH range so therefore it probably won't change colour.

2) the solution should be clear and colourless to see colour change.

3) indicators tend to be of low accuracy so it's not 100% reliable.

5 0
3 years ago
Can gravity be considered a force? Explain your reasoning
bija089 [108]

Answer:

I think that gravity can be considered a force.

Explanation:

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Hope this helped! :)

8 0
2 years ago
Denver, Colorado (altitude above sea level is 5,280 ft) has an atmospheric pressure of 633. mm Hg. Calculate the boiling point o
Fed [463]

Answer:

T2 = 94.6 C

Explanation:

Use Clausius-Clayperyon equation.

ln P1/P2 = ∆Hvap/R (1/T2 - 1/T1) where R = 8.314 J/mol-K and T is in degrees K

P1 = 760 mmHg

P2 = 630 mmHg  

T1 = 373 K

T2 = ?

∆Hvap = 40.7 kJ/mole

R = 0.008314 kJ/mole-K (NOTE: change R to units of kJ)

Plug in and solve for T2

ln 760 mmHg/630 mmHg = 40.7 kJ/mole (1/T2 - 1/373K)

T2 = 367.74 K = 94.6 C

8 0
3 years ago
Explain why there is no rise in temperature of a substance when it undergoes a change of state though it is being continuously h
Minchanka [31]
When a substance is undergoing a change of state, the heat that is been added to the substance at that particular point in time is used to work on the chemical bonds that is holding the molecules of the substance together; the heat is not used to increase the temperature of the substance at that particular point. For instance, in the case of ice, at its melting point the heat supplied is used to break the inter molecular force that is holding the particles of the ice together. When the bonds are completely broken and the ice has to liquid then the temperature of the water will increase.
8 0
3 years ago
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