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Chemistry

1 answer:

ladessa [460]2 years ago

8 0

Answer:

Explanation:

Answer

It tells you what method she used and what she wanted to accomplish. She is using

<em>an absolute dating method to study a sample of basalt</em>

So the answer you should post is F. F and the quotation above say the same thing.

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Describe what happened when sodium chloride (salt) was placed in water in the video What happens when stuff dissolves?"

Sonja [21]

Answer:

Explanation:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

6 0

2 years ago

A compound has the empirical formula ch and a formula mass of 52.10 amu. part a what is the molecular formula of the compound?

Sever21 [200]

<span>C4H4 The compound in question has an equal ratio of hydrogen and carbon. The atomic weight of carbon is roughly 12 and the atomic weight of hydrogen is roughly 1. The mass of the compound in question is roughly 52. 52/13=4 C4H4</span>

3 0

2 years ago

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A gas has a volume of 240.0mL at 25C and 600.0 mmHg. Calculate it's volume at STP

atroni [7]

760.0 mmHg(V)=600.0mmHg(240.0mL)
600(240)/760=189mL

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2 years ago

The true absorbance for a 1.0 x 10 −5 M solution is 0.7526. If the percentage stray light for a spectrophotometer is 0.56%, calc

Korvikt [17]

Answer:

The percentage deviation is $\Delta M = 1.87$ %