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Katarina [22]
3 years ago
15

Please Help Why is laboratory safety important? Describe a scenario illustrating your reason(s).

Chemistry
1 answer:
Virty [35]3 years ago
3 0
So that you can learn while being safe. Wearing goggles, for eye protection when dealing with chemicals
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Identify a cation. An atom that has gained a proton. An atom that has lost an electron. An atom that has gained an electron. An
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the answer would be B an atom that has lost an electron

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What kind of questions can science answer
IrinaK [193]

Answer:

hypothesis

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a question that can be answered wity a hypothesis is a question a scientist can answer

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A substance made of metal atoms only?
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For each solute, identify the better solvent: water or carbon tetrachloride
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What is the relative formula mass of N2O? Ar of N = 14 and Ar of O = 16.
s2008m [1.1K]

We have to calculate formula mass of N₂O.

The answer is: 44

Relative formula mass is the sum of relative atomic mass of constituent atoms in a formula unit of any compound.  Relative formula mass is represented as same symbol of relative molecular mass.

To calculate relative formula mass we need to know number of each atom in the formula and then adding atomic masses of all the atoms.

In N₂O, number of N-atom present is equal to 2 and number of O-atom is equal to  1.

Atomic mass of N-atom is 14 and atomic mass of O-atom is 16.

So, formula mass of N₂O is (2 X 14)+16 = 44.

6 0
3 years ago
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