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avanturin [10]
3 years ago
13

What I need to know is what is the question talking about.

Chemistry
1 answer:
insens350 [35]3 years ago
4 0
Can you type it out the picture is too blurry to read, sorry. 
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Atoms that have a full outer level combine with other atoms. Is this true or false
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false

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some atoms already have a full outer level

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3 years ago
Explain why copper is used for the<br> roofs of some buildings and magnesium is not.
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Because of the less reactivity of copper.

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Magnesium would also corrode PDQ. Magnesium sheeting would also pose an unacceptably high fire hazard.

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2 years ago
It is necessary to have a 40% antifreeze solution in the radiator of a certain car. the radiator now has 70 liters of 20% soluti
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The answer is : 17.5 liters drained and replaced by 17.5 liters of 100% solution. 
x = amount drained and replaced
(70-x) = remaining amount of 20% solution
<span>.20(70-x) + 1.00(x) = .40(70)
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x= 17,5 ( 17.5 liters drained and replaced by 17.5 liters of 100% solution)

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