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OLga [1]
3 years ago
6

The amount of a harmful chemical to which a person is exposed is the ____.

Chemistry
2 answers:
kotykmax [81]3 years ago
6 0
A. dose
a dose is an amount, a response is an action, and pollutant and toxins are substances
Tom [10]3 years ago
5 0
The answer is A=dose
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3 years ago
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How many atoms are in 766.3 grams of Li?
34kurt

1 mol of any substance is made of 6.022 x 10²³ units, these units could be atoms making up elements or molecules making up a compound.

In this case. 1 mol of Li is made of 6.022 x 10²³ atoms of Li

The molar mass of Li is 6.94 g/mol

Therefore mass of 1 mol of Li is 6.94 g

In 6.94 g of Li there are - 6.022 x 10²³ atoms

Then in 766.3 g of Li there are - 6.022 x 10²³ atoms / 6.94 g x 766.3 g = 665 x 10²³

There are 6.65 x 10^25 atoms of Li

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3 years ago
Based on molecular orbital theory, the bond orders of the H—H bonds in H 2 , H 2 + , and H 2 - are _________, respectively
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In H2, there are two bonding electrons and no antibonding electrons. In H2+ there is only one bonding electron and no antibonding electron while in H22- there are two bonding and two antibonding electrons respectively.

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Is 2CO + O2 -> 2CO2 A balanced or unbalanced equation
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