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Ne4ueva [31]
3 years ago
8

the temperature of an ideal gas in a sealed 0.7 m^3 container is reduced from 340 k to 270 k. the final pressure of the gas is 4

0 kPa. The molar heat capacity at constant volume of the gas is 28.0 j/mol*k. the work done by the gas is closest to
Chemistry
1 answer:
vivado [14]3 years ago
6 0

Answer: dulimu

Explanation:refer to maxwell…use your duduli

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Question 23 (3 points)
Mice21 [21]

Answer:

<h2>The answer is 3.0 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of aluminum = 8.1 g

density = 2.7 g/mL

It's volume is

volume =  \frac{8.1}{2.7}  \\

We have the final answer as

<h3>3.0 mL</h3>

Hope this helps you

3 0
3 years ago
Which of the following units is used to measure force ?
Sati [7]
C.) Newton. & it's S.I. Unit of Force.

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3 years ago
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How many protons and electrons are present in Au+?
balandron [24]

Answer:

Protons: 79

Electrons: 78

Explanation:

1. The number of protons is the atomic number (The atomic number for Au on the periodic table is 79)

2. Since the charge is +1 (positive) it means that there's one more proton than electrons. So, 79-1 = 78 electrons

7 0
3 years ago
Which components can be found in both comparative and experimental investigations, but are never found in descriptive investigat
Reptile [31]

Answer:

HYPOTHESIS, VARIABLES, AND CONTROL GROUP

Explanation:

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3 years ago
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One mole of water weights?
Gemiola [76]

Answer:

c 18.0ml

Explanation:

The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.

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