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sveta [45]
3 years ago
14

Is Calcium oxide (CaO) covalent or ionic?

Chemistry
2 answers:
shusha [124]3 years ago
8 0

Answer:

ionic

Explanation:

Paul [167]3 years ago
6 0

Answer:

Calcium oxide (CaO)is ionic.

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PLSSS HELP FAST
Aliun [14]

Note the formula

\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}

For X:-

  • No of protons:-

\\ \sf\longmapsto 19-10=9protons

  • It is Fluorine.

For Y:-

  • No of protons:-

\\ \sf\longmapsto 16-8=8protons

  • It is Oxygen.

Option D is correct

7 0
2 years ago
How many moles of water are produced if 5.43 mol PbO2 are consumed
Mariana [72]
It has to be understood that 2 moles of oxygen are there in each mole of PbO2. Then it has to be calculated for 2 moles of oxygen.

Amount of oxygen = 2 * 5.43 moles
                              = 10.86 moles
Now it is also a fact that each mole of H2O contains 1 mole of oxygen. Then it can be easily concluded that 10.86 moles of water will be produced. I hope the procedure is clear enough for you to understand.
5 0
2 years ago
Read 2 more answers
The wheels of a car are able to spin due to the combustion of gasoline inside the car's engine. what type of energy transfer bes
REY [17]
I believe it is C, Chemical energy because of the changes in the gasoline burning, and mechanical energy because the wheels are moving.
7 0
2 years ago
Nonrenewable energy sources come out of the ground as liquids, gases,
elixir [45]

Answer:

TRUE

Explanation:

Production of Hydrocarbons from Natural Gas is as stated below:

Natural gas liquids include propane, butane, pentane, hexane, and heptane, but not methane and not <u>always</u> ethane, (<em>may include it </em><em><u>sometimes</u></em><em>.</em>) s<em>ince these hydrocarbons need refrigeration to be liquefied.</em>

4 0
2 years ago
How is reusable water bottles are more environmentally friendly than one use water bottle?
dexar [7]

Answer:

They are better because they are more usable than Plastic and reusable water bottles are better for the planet!

Explanation:

6 0
3 years ago
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