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Korvikt [17]
3 years ago
5

Hey please help man...

Chemistry
1 answer:
malfutka [58]3 years ago
4 0

Answer:

1. Cations are positively charged and have less electrons than protons.

2. Anions are negatively charged and have more electrons than protons.

3. Columns on the periodic table are known as groups.

4. The elements in the first group are called alkalis metals and have one valence electron.

Explanation:

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How many miles of iron can be produced from 3.5 moles of Fe2O3 and 6.2 moles of CO
AlekseyPX

Answer:

4.13 moles of Fe.

Explanation:

Given data:

Moles of iron produced = ?

Moles of Fe₂O₃ = 3.5 mol

Moles of CO = 6.2 mol

Solution:

Chemical equation:

Fe₂O₃ +  3CO      →    2Fe + 3CO₂

Now we will compare the moles of iron with CO and Fe₂O₃.

                 Fe₂O₃        :         Fe

                      1             :          2

                  3.5             :         2/1×3.5 = 7 mol

                 CO              :          Fe

                   3               :            2

                 6.2              :        2/3×6.2 = 4.13 mol

The number of moles of iron produced by CO are less it will limiting reactant.

Thus, moles of iron formed in given reaction are 4.13 moles.

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3 years ago
State 2 ways in which adaptation help animals?
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