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Scrat [10]
2 years ago
13

If an atom the atomic number 10 and the mass number 12, how many VALENCE electrons does it have?

Chemistry
1 answer:
myrzilka [38]2 years ago
7 0
The answer for this is 22
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Which reactant will be in excess, and how many moles of it will be left over?
timofeeve [1]

Answer:

Oxygen with 0.36 moles left over

Explanation:

5 0
3 years ago
Read 2 more answers
8. If I have 34 grams of FeO, how many grams of Oxygen were synthesized?<br>Fe + O2 → Feo​
krek1111 [17]

Answer:

34 gram of FeO produced 8 gram of oxygen.

Explanation:

Given data:

Mass of FeO = 34 g

Mass of oxygen = ?

Solution;

Chemical equation:

2FeO → 2Fe + O₂

Number of moles of FeO:

Number of moles = mass/ molar mass

Number of moles = 34 g /71.8 g/mol

Number of moles = 0.5 mol

Now we will compare the moles of FeO with oxygen:

             FeO       :       O₂

                2         :        1

                0.5      :      1/2 × 0.5 = 0.25

Mass of oxygen:

Mass = number of moles × molar mass

Mass =  0.25 mol × 32 g/mol

Mass = 8 g

So 34 gram of FeO produced 8 gram of oxygen.

8 0
3 years ago
Para que serve o balanceamento de equações químicas?
Marrrta [24]
Please speak english
3 0
3 years ago
Competition is rivalry between individuals for a particular resource.
djyliett [7]

Answer:

True

Explanation:

Competition is the act of competing with one another for a particular resource. An example is two animals quarrelling over a food or two people quarreling over who lost their money. Competing is a type of rivalry in which two people compete for one resource. The answer for this question is True.

5 0
3 years ago
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In oxidative phosphorylation, electrons are passed from one electron carrier to another. The energy released is used to ________
Zepler [3.9K]

Answer:

d. Form ATP during glycolysis.

Explanation:

During oxidative phosphorylation, an oxidation-reduction reactions will happen and the electrons transferred and energy released will be used in the conversion of adenosine diphosphate (ADP) into adenosine triphosphate (ATP).

This happens as a step of glycolysis, wich is the process in which the organism breaks gluscose molecules to obtain energy.

7 0
3 years ago
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