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GenaCL600 [577]
4 years ago
15

When humans burn fuel or cut down trees, they ( increased or decrease) levels

Chemistry
1 answer:
Sedbober [7]4 years ago
6 0
Its b it decreases u lose more u lose more fuel and u r hurting the environment when u cut down trees
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Ethanol is a common laboratory solvent and has a density of 0.789 g/ml. What is the mass, in grams, of 125 ml of ethanol?
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The density of a material is its unique property by which a unknown material can be identified and also the impurity (if present) in a material can be concluded. Mathematically the density can be expressed as-\frac{mass}{volume}. Thus from the mathematical expression we can say that the density is the mass per unit volume of a material. Here the density of ethanol is given 0.789 g/mL. Thus the weight of the 1 mL ethanol is 0.789g. Thus the weight of the 125 mL of ethanol will be (125×0.789) = 98.625 g.

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