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GalinKa [24]
3 years ago
5

Can someone explain number three to me? i don’t need the answers i just don’t understand

Mathematics
1 answer:
Ksivusya [100]3 years ago
8 0

Answer:


Step-by-step explanation:

You'll have an idea of the  positive or negative charge on the ion from the periodic table

For  example  Magnesium is in group 2 and its ionic charge is +2  Mg2+

In the higher groups the charge on the on is negative For example

Chlorine ion is  Cl-  (its in group 7   and it has (8-7) = 1 negative charge

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Help me with this please
lutik1710 [3]
<h3>Answer:</h3>

4.42×10^34 molecules/min

<h3>Step-by-step explanation:</h3>

Multiply the various factors, along with the unit conversion (60 s/min).

... (3.35×10^25 molecules/L) × (2.2×10^7 L/s) × (60 s/min)

... = (3.35×2.2×60)×10^(25+7) molecules/min

... = 442.2×10^32 molecules/min

... ≈ 4.42×10^34 molecules/min

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3 years ago
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2 years ago
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Answer:

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Step-by-step explanation:

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A rectangular prism has a volume of 97.5 cubic inches. The length is 5 inches and the height is 3 inches. What is the width of t
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Answer:

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