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yan [13]
3 years ago
12

What kind of changes occur between atoms when substances undergo chemical reactions?

Chemistry
1 answer:
KatRina [158]3 years ago
8 0
The atoms undergo chemical changes.

New substances may be a product of the reaction.
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A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
ddd [48]

Answer:

178.35g

Explanation:

Molarity of a solution can be calculated using the formula:

Molarity = number of moles ÷ volume

Based on the information provided in this question, molarity (M) of the solution = 1.50 M, volume = 725 mL = 725/1000 = 0.725L, n = ?

1.50 = n / 0.725

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n = 1.0875mol

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23(3) + 31 + 16(4)

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mass = 178.35g

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Carbon dioxide (CO2)
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Nadusha1986 [10]

The gas is confined in 3.0 L container ( rigid container) ⇒ the volume remains constant when the temperature is increased from from 27oC to 77oC and therefore V1=V2 .

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Which is more metallic<br><br> a) Silicon<br><br> b) Aluminum
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Find the density of an object that has a mass of 12.69 grams and a volume of 3.5cm3
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