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valina [46]
3 years ago
11

Identify the following changes as physical or chemical.

Chemistry
1 answer:
andrezito [222]3 years ago
5 0

Answer:

physical

Explanation:

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When 1.5 mol calcium nitrate dissolves in water, how many moles of ions should be present in solution?
____ [38]

Answer:

1.5 moles of Ca²⁺ and 3 moles of NO₃⁻

Explanation:

This is the dissociation:

Ca(NO₃)₂  →  Ca²⁺  +  2NO₃⁻

1.5 moles of salt will have the same moles of ion Ca²⁺ and the double of moles, of nitrate according to the equation.

Therefore will be 1.5 moles of Ca²⁺ and 3 moles of NO₃⁻

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3 years ago
When pentyne is reacted with hydrogen gas what products is formed​
Tpy6a [65]

c5h10

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6 0
3 years ago
What is produced when an acid and an alkali react?
marta [7]
The answer is D: Salt and Water
6 0
3 years ago
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Volume occupied 3.52x10^32 moluchles<br>of Mathane (CH4)<br>1) At STP​
Naddika [18.5K]

Answer:

volume = 13097674418.528dm³

Explanation:

n = (3.52)*10^32/(6.02)*10^23)

n = (584717607.97)

n = volume /molar volume

molar volume at stp = 22.4dm³

volume= 584717607.97 x 22.4

volume = 13097674418.528dm³

6 0
3 years ago
Ignore the one I chose hehe! but please help?!
FrozenT [24]

Answer:

umm i believe that the one you chose is correct

Explanation:

6 0
3 years ago
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