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weeeeeb [17]
2 years ago
15

This isn't a homework question but how do you get bruises off of your chest in like two days??

Chemistry
1 answer:
romanna [79]2 years ago
3 0

Answer:

Im not sure how to get it off but i know if you put like some make up or foundation it will cover it.

Explanation:

Are you being abused

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I believe this topic is quantitative chemistry but I need the equation to work this out sorry

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2 years ago
What is the percent by mass of oxygen in carbon dioxide (CO2)?
wariber [46]

Answer:

= 72.73%

Explanation:

The percentage by mass of an element is given by;

% element = total mass of element in compounds/molar mass of compound × 100

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Therefore;

% of O2 = 32/44 × 100%

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8 0
3 years ago
Ch4+202==&gt;c02+302 what type of chemical reaction
n200080 [17]

Answer:

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4 0
2 years ago
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