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kati45 [8]
3 years ago
9

8. What is one sign that the water in your house is "hard?"

Chemistry
1 answer:
hodyreva [135]3 years ago
7 0

Answer:

More than soap sc um, hard-to-remove scale or film is often due to hard water. Also, take a good look at your faucets or fixtures.

Explanation:

hope this helps :D

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kakasveta [241]

Answer:

2400000000

Explanation:

i believe that this should be the correct answer i punched in the numbers of conversion based off of what you put in your question.

4 0
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Under what conditions can potassium bromide, an ionic compound, conduct electricity?
finlep [7]

Answer:

A

Explanation:

As do to freed atoms more able to conduct electricity in molded state which can occur if melted or dissolved

6 0
3 years ago
Give the number of significant figures in this number: 40
lubasha [3.4K]
The # 4 is the only significant # in 400.. Trailing 0's r not significant unless there is a decimal.

in 0.7000, there are 4 significant #'s.

8 0
3 years ago
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A mixture of Ar, He, and O2 has a total pressure of 1,015 kPa. Argon exerts a partial pressure of 152 kPa and Helium exerts a pa
arsen [322]
This one is easy. It's just addition and subtraction. Add the partial pressure of Argon and the partial pressure of Helium:
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<u>+305 kPa</u><u>
</u>  457 kPa

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  1015 kPa
<u>-  457 kPa</u>
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8 0
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A balloon in the air has more energy than??
Svetlanka [38]
Potential energy is the answrt
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3 years ago
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