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weeeeeb [17]
2 years ago
10

The temperature of a sample of water in the liquid phase is raised 30 degrees Celsius by the addition of 3762 J. What is the mas

s of the water in grams?
A. 0.03
B. 0.30
C. 30
D. 300
Chemistry
1 answer:
Butoxors [25]2 years ago
3 0
The answer is A because it’s how you calculate the mass
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A substance made up of only one type of atom would be a
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Answer:

Element

Explanation:

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Why do you think forensic scientists are so careful that the tests they do are sensitive, reproducible, and specific?
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Critical Thinking Questions

1. Why do you think forensic scientists are so careful that the tests they do are sensitive, reproducible, and specific? What might happen if they were less careful about this?

They have to be careful to ensure as much accuracy as possible.

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Physical evidence would probably be most important because it is the best way to connect someone directly with that crime.

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4 0
3 years ago
Read 2 more answers
What compound consists of 0.248 g magnesium, 0.655 g sulfur, and 1.31 g oxygen
Ivenika [448]

Magnesium Peroxydisulphate with formula of MgS₂O₈.

<h3><u>Explanation:</u></h3>

The question clearly stands on the concept of molarity and atomic weights.

The atomic weight of magnesium = 24.

The atomic weight of sulphur = 32.

The atomic weight of oxygen = 16.

The amount of magnesium present = 0.248 g

The amount of sulphur present = 0.665 g.

The amount of oxygen present = 1.31g.

So, moles of magnesium present = 0.01 moles.

Moles of sulphur present = 0.02 moles.

Moles of oxygen present = 0.08 moles.

So, mole ratio of the compound as magnesium : sulphur : oxygen = 1:2:8.

So the compound is Magnesium Peroxydisulphate with formula of MgS₂O₈.

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