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Tpy6a [65]
1 year ago
5

Lithium is located in the first group of the periodic table. How many valence electrons does the element lithium have?

Chemistry
1 answer:
e-lub [12.9K]1 year ago
6 0

Answer: 1

Explanation: Lithium has a single electron in the second principal energy level, and so we say that lithium has one valence electron.

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ivolga24 [154]

Answer:a

Explanation:

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3 years ago
What is the solubility of nitrogen and calcium nitrate in cyclohexane?
Sav [38]
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8 0
2 years ago
How many moles of CuO would be required to produce 12 mol of copper metal in this reaction? CuO(s) + H2(g) —— Cu(s) + H2O(g)
Rudiy27
<h3>Answer:</h3>

12 moles

<h3>Explanation:</h3>

The equation for the reaction;

  CuO(s) + H₂(g) → Cu(s) + H₂O(g)

We are given;

  • Moles of copper, Cu is 12 moles

We are required to calculate the number of moles of CuO required;

  • From the reaction 1 mole of CuO reacts to produce 1 mole of copper
  • Thus, the mole ratio of CuO to Cu is 1 : 1
  • Moles of CuO = Moles of Cu

Thus, moles of CuO = 12 moles

Therefore; 12 moles of CuO will be required.

6 0
3 years ago
What are the products in this chemical reaction? 2H3PO4+3Ca(OH)2→Ca3(PO4)2+6H2O
finlep [7]
<h2>Answer:C</h2>

Explanation:

A chemical equation is a equation that describes a corresponding chemical reaction.

A chemical reaction is generally written as

reactants→products

reactants refer to all the reactants involved in the chemical reaction.

Reactants are usually written on the left hand side of the chemical equation.

products refer to all the products formed in the chemical reaction.

products are usually written on the right hand side of the chemical equation.

In the given reaction,Ca_{3}(PO_{4})_{2},H_{2}O are written on the right side of the equation.

So,Ca_{3}(PO_{4})_{2},H_{2}O are the products.

5 0
3 years ago
Read 2 more answers
Trehalose, sophorose and turanose are disaccharides. Trehalose is found in the cocoons of some insects, sophorose turns up in a
vlabodo [156]

Answer:

First structure is sophorose, second structure is turanose, third structure is trehalose, fourth structure is none of the above.

5 0
3 years ago
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