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Setler79 [48]
3 years ago
10

I just need the answer please to both if you can

Chemistry
2 answers:
morpeh [17]3 years ago
6 0

Answer:

Q 4: d

Explanation: this is all I can answer

SOVA2 [1]3 years ago
5 0

Answer:

No.4 is B No.5 is d

Explanation:

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Which statement explains why a rubber band analogy is not a perfect comparison for bonds in a substance when considering phase c
Aliun [14]

The bonds in a substance breaks down in a phase change from liquid to gas and the molecules move independently of each other.

It is conventional to describe chemical bonds with the aid of elastic materials such as a rubber band. This analogy can only apply to covalent bonds between atoms in which the bonds between atoms are stretched.

However, in discussing the bonds in a substance when considering phase changes, this analogy breaks down because for a phase change from liquid to gas, the bonds break completely and particles can move independently of each other.

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3 years ago
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3 years ago
Find the number of formula units in 30 moles of h3po4
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Which of the following are true about a block of ice at -10 degrees Celsius as you continue to apply heat.
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5 0
4 years ago
1. What is the mass of 22.4 L of H2 at STP?
Fed [463]
1.
n = m/2.016 g/mol = V/22.4 l
V = 22.4 l
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m = 2.016 g ≈ 2.02 g
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2.
Balancing the equation, we get,
Mg + 2HCl → MgCl2 + H2
PV = nRT
V = nRT/P
V = 1.5 mol × 8.314 atm/(mol.K) × 298 K/(0.96 atm)
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V ≈ 38.2 l
6 0
3 years ago
Read 2 more answers
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