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Dmitry_Shevchenko [17]
3 years ago
9

What do valence electrons determine

Chemistry
1 answer:
BARSIC [14]3 years ago
8 0

Answer: the reactivity

Explanation:

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A gas starts at a volume of 23 L and a pressure of 1.23 atm. What is the new pressure if you
Anna71 [15]

Answer:

<h2>1.89 atm</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{1.23 \times 23}{15}  =  \frac{28.29}{15}  \\  = 1.886

We have the final answer as

<h3>1.89 atm</h3>

Hope this helps you

7 0
2 years ago
. In which reaction is nitric acid acting as an oxidising agent?
Talja [164]

Answer:

B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2

Explanation:

Hello,

In this case, we should understand oxidizing agents as those substances able to increase the oxidation state of another substance, therefore, in B. reaction we notice that copper oxidation state at the beginning is zero (no bonds are formed) and once it reacts with nitric acid, its oxidation states raises to +2 in copper (II) nitrate, thus, in B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2 nitritc acid is acting as the oxidizing agent.

Moreover, in the other reactions, copper (A.), sodium (C. and D.) remain with the same initial oxidation state, +2 and +1 respectively.

Regards.

8 0
3 years ago
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How much precipitation is shown in the rain gauge below?
VARVARA [1.3K]

Answer: b

Explanation:

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2 years ago
A student puts a glass of water in the freezer. Later, he notices ice forming on the surface of the water. Which property of wat
Karolina [17]
C.ice has a lower freezing point than liquid water

hope this helps
4 0
3 years ago
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If 2 objects have the same volume, but one has more mass than the other, are the densities the same or different? Explain
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The one with higher mass has a higher density because it fits more mass into the same amount of space (volume).

4 0
3 years ago
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