Which of the following statement is not true?

Chemistry

1 answer:

Helga [31]3 years ago

8 0

Answer: 2

Explanation: Greenhouse gases are very important in keeping our planet just right. If we have too many Greenhouse gases it would be too hot, but we can't eliminate all of them or it will be too cold

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Which will most likely result if the levels of dissolved oxygen decrease in a body of water?

Lerok [7]

Answer:

B) Native fish species will begin to decrease in population size.

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5 0

3 years ago

Read 2 more answers

How many moles are there in 44.71 g of chlorine (cl)? use significant figures?

krok68 [10]

Mass of chlorine = $44.71 g$ (given)

Molar mass of chlorine = $35.45 g/mol$

Now, number of moles is defined as the ratio of given mass in gram to the molar mass of the compound.

Number of moles = $\frac{given mass in g}{molar mass}$

Number of moles of chlorine = $\frac{44.71 g}{35.45 g/mol}$

= $1.26121297 moles$

Now, according to significant figure rules, the least number of significant figure in the question identifies the number of significant figures in the solution.

Thus, in question, both digit have four significant figures, therefore, the answer must be in four significant figures.

Hence, number of moles of chlorine = $1.261 moles$