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Vladimir [108]
3 years ago
13

This is how platinum appears in the periodic table.A purple box has P t at the center and 78 above. Below it says platinum and b

elow that 195.08. Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273
Chemistry
2 answers:
ozzi3 years ago
6 0

Answer:

3.) 195

Explanation:

Because platinum is 195.079 amu (its on the periodic table)

grigory [225]3 years ago
3 0

Answer:

the answer is 195

Explanation:

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The heat of freezing is the energy released when the substance is converted from liquid to solid.

Now we know that the molar mass of the substance is 82.9 g/mol  hence the number of moles of the substance is;  13.3 g /82.9 g/mol  = 0.16 moles

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1 year ago
The data in the table are the result of a paramecium being placed in a hypertonic salt solution.
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<span>the answer is
C. The bar for very low concentration is twice the height of the bar for medium concentration.

proof
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<span>Medium--------------------15

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3 years ago
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Answer:

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Explanation:

If a compound SO existed, we would identify the oxidation state of sulfur using the following logic:

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3 years ago
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3 years ago
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