2 years ago

Which of the following is a direct result of global warming that is causing endangerment of polar bears?

Chemistry

1 answer:

frez [133]2 years ago

3 0

increased warmth causing glaciers to melt

you're welcome! :)

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. Which of the following factors contributes to the increase in lonization energy from left to right across a period?

Lyrx [107]

Answer:

Answer is D

Explanation:

an increase in the number of protons

8 0

2 years ago

An unknown compound has the following chemical formula:

Softa [21]

Answer:

Formula of the compound = $P_2O_5$

Explanation:

Given,

No. of mole of O = 8.20 mol

No. of mole of P = 3.30 mol

Chemical formula = $P_2O_x$

Ratio of P and O = $\frac{2}{x}$

$\frac{2}{x} =\frac{3.3}{8.20} \\x \times 3.3 = 8.20 \times 2\\x = \frac{8.20 \times 2}{3.3} \\x=4.9969\\ = 5$

formula of the compound = $P_2O_5$

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2 years ago

Does a large ball of aluminum foil have the same properties as a small ball?

dsp73

Answer:

yes

Explanation:

same properties different size

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5 0

2 years ago

Calculate the oxidation numbers of the elements in this equation<br> 2 Al2O3 → 4 Al + 3 O2

riadik2000 [5.3K]

Explanation:

Answer

Open in answr app

The rule used here is that the algebraic sum of the oxidation numbers of all the atoms a molecule is zero.

Al2O32× ( oxidation number of Al)+3× ( Oxidation number of O ) = 0

2× ( Oxidation number of Al) +3(−2)=0

2× ( oxidation number of Al) +6

∴ Oxidation number of Al =+3

5 0

2 years ago

PLEASE ANSWER THIS FAST

Fofino [41]

Answer:

A and c MgSO4 and HNO3

8 0

3 years ago

Read 2 more answers