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lions [1.4K]
3 years ago
5

Which option can be classified as a pure substance

Chemistry
2 answers:
AnnyKZ [126]3 years ago
7 0
There isn’t any options
Zina [86]3 years ago
4 0
I have done this question before and even though you didn’t provide the options. I think the correct option is elements
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A molecular orbital is a region of space in a covalent species where electrons are likely to be found. The combination of two at
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Answer:

bonding molecular orbital is lower in energy

antibonding molecular orbital is higher in energy

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Electrons in bonding molecular orbitals help to hold the positively charged nuclei together, and they are always lower in energy than the original atomic orbitals.

Electrons in antibonding molecular orbitals are primarily located outside the internuclear region, leading to increased repulsions between the positively charged nuclei. They are always higher in energy than the parent atomic orbitals.

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When you rub two sticks together, they get hot.
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Green plants use light from the sun to drive photosynthesis. photosynthesis is a chemical reaction in which water and carbon dio
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<span>The equation that represents the process of photosynthesis is: </span>

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<span>6CO2+12H2O+light->C6H12O6+6O2+6H2O</span>

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<span>Photosynthesis is the process in plants to make their food. This involves the use carbon dioxide to react with water and make sugar or glucose as the main product and oxygen as a by-product. Since we are not given the mass of CO2 in this problem, we assume that we have 1 g of CO2 available. We calculate as follows:</span>

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<span>1 g CO2 ( 1 mol CO2 / 44.01 g CO2 ) ( 12 mol H2O / 6 mol CO2 ) ( 18.02 g / 1 mol ) = 0.82 g of H2O is needed</span>

<span>
</span>

However, if the amount given of CO2 is not one gram, then you can simply change the starting value in the calculation and solve for the mass of water needed.

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Which number represents an acidic pH, 4 or 9?
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pH 4 represents an acidic

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