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Varvara68 [4.7K]
2 years ago
13

What is the term for the amount of salts in water? Evaporation

Chemistry
2 answers:
gtnhenbr [62]2 years ago
8 0

Answer:

B.Salinity

I believe

Explanation:

report if wrong

ELEN [110]2 years ago
3 0

Answer: The answer is C.Evaperation

Explanation:

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A chemist measures the energy change ?H during the following reaction: 2HgO (s) ?2Hg (l) +O2 (g) =?H182.kJ Use the information t
Leni [432]

Answer:

The reaction is endothermic.

Yes, absorbed

3.06x10¹kJ are absorbed

Explanation:

In the reaction:

2HgO(s) → 2Hg(l) + O₂(g) ΔH = 182kJ

As ΔH >0,

<em>The reaction is endothermic</em>

<em />

As the reaction is endothermic, when the reaction occurs,

<em>the heat is absorbed.</em>

<em></em>

Now, based on the equation, when 2 moles of HgO (Molar mass: 216.59g/mol), 182kJ are absorbed.

72.8g are:

72.8g * (1mol / 216.59g) = 0.3361 moles HgO.

that absorb:

0.3361 moles HgO * (182kJ / 2 moles) =

<h3>3.06x10¹kJ are absorbed</h3>
8 0
3 years ago
MARKING BRAINLIEST!! HURRY
Anastaziya [24]

Answer:

3rd choice

Explanation:

7 0
2 years ago
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barium chloride (Ba(CIO3)2) breaks down to form barium chloride and oxygen. what is the balanced equation for this equation?
kompoz [17]

Answer:

Ba(ClO₃)₂ → BaCl₂ + 3 O₂

Explanation:

When exposed to heat, barium chlorate (Ba(ClO₃)₂ breaks down into an inorganic compound (Barium chloride - BaCl₂) and a molecule (Oxygen - O₂).

6 0
3 years ago
An ionic compound is composed of elements X and Y. X forms
mote1985 [20]

Answer: X2Y3

Explanation: I had the same question ;) (and got it right)

7 0
2 years ago
What does a scientific law do ?
baherus [9]

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Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.

Explanation:

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