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4 years ago

A distance force is a force that acts on an object but

Chemistry

2 answers:

zvonat [6]4 years ago

8 0

It is a force that acts on an object but does not touch it.

Mumz [18]4 years ago

7 0

I believe the answer is C. Does not touch it

Someone please correct me if I am wrong.

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14. As the temperature of a gas in a closed container increasses, what is true of the particles in the substance? (2 points)

Ede4ka [16]

The rate of particle movement increases, also increases the pressure in the vessel

4 0

3 years ago

Randy is building a house. He wants to put stucco on the outside walls of his house. To make stucco, he needs sand. He lives on

allochka39001 [22]

Answer:

(c)-He separates the larger pebbles and other debris from the finer sand by sifting it with wire mesh.

Explanation:

A mixture is an association of substances that not react between them. It can be homogeneous when it's not possible to see the substances, or heterogeneous when it's possible to see each the substances.

Randy separates the substances of the soil with a wire mesh, so it's possible to define the substances, then the mixture is heterogeneous.

8 0

4 years ago

Which operation best represents how to solve for the mass number of an atom?

lina2011 [118]

Answer:

C. protons + neutrons

Explanation:

The mass number is defined as the total number of protons and neutrons in an atom.

6 0

2 years ago

Megan prepares a pitcher of lemonade by adding a quarter cup of granular sugar to the mixture. Which action should she take so t

Monica [59]

The answer will be C

3 0

3 years ago

Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 8.60 MJ o

Alecsey [184]

Answer: $64.216\times 10^4grams$ of liquid sodium is required.

Explanation: To calculate the mass of liquid sodium, we use the formula:

$q=nc\Delta T\\q=\frac{m}{M}c\Delta T$

where,

q = heat required, $8.60MJ=8.60\times 10^6J$ (Conversion factor: 1MJ = 1000000J)

m = Mass of liquid sodium, $?g$

M = Molar mass of liquid sodium, $23g/mol$

c = Specific heat capacity, $30.8J/Kmol$

$\Delta T$ = change in temperature, $\Delta T=(510-500)K=10K$ (Conversion factor: 0°C = 273K)

Putting values in above equation, we get:

$8.60\times 10^6J=\frac{m}{23g/mol}\times 30.8J/Kmol\times 10K$

$m=64.216\times 10^4grams$

5 0

3 years ago