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victus00 [196]
3 years ago
6

What must occur for a change to be a chemical reaction?

Chemistry
1 answer:
Pie3 years ago
6 0
There must be a change in chemical properties.
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What is extrapolation?
bixtya [17]

Answer:

A. Predicting data that fall beyond a known data point

Explanation:

Extrapolating is unreliable because you are predicting data outside of the data range - anything could happen for the data to stop following the trend or pattern

8 0
3 years ago
Calculate the mean rate of reaction when 23 cm<br> of gas<br> is produced in 15 seconds.
katrin2010 [14]

Answer:

1.53 cm/s

Explanation:

Rate = Length/time

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2 years ago
What is the number of grams of N₂ (g) that contains 1.80 x 10^24 molecules?
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Answer:

83.69 gm

Explanation:

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Find the number of moles then multiply by this

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7 0
2 years ago
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just olya [345]

Answer:

C. phosphate group

Explanation:

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3 0
3 years ago
How does one calculate the pH of a solution? O A. The pH is the product of [H+] and [OH-]. O B. The pH is the negative log of [O
blagie [28]

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