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Lorico [155]
3 years ago
9

Maria wants to determine which type of disinfectant kills the most bacteria.

Chemistry
2 answers:
murzikaleks [220]3 years ago
6 0

Answer:

well she can test both of the soap by putting one on and plate and another on the other plate and which ever is cleaner is your answer

morpeh [17]3 years ago
4 0

Answer:

Put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Explanation:

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a student determined that it requires 106220 j of energy to vaporize 47g of water. is the student is right​
shusha [124]
<h2>Answer:</h2>

He is right that the energy of vaporization of 47 g of water s 106222 j.

<h3>Explanation:</h3>

Enthalpy of vaporization or heat of vaporization is the amount of energy which is used to transform one mole of liquid into gas.

In case of water it is 40.65 KJ/mol. And 18 g of water is equal to one mole.

It means for vaporizing 18 g, 40.65 kJ energy is needed.

So for energy 47 g of water = 47/18 * 40.65 = 106.1 KJ

Hence the student is right about the energy of vaporization of 47 g of water.

7 0
3 years ago
What process transform solar energy into chemical energy?
DIA [1.3K]
Green plants transform solar energy<span> to </span>chemical energy<span> (mostly of oxygen) through the </span>process<span> known as photosynthesis, and electrical </span>energy<span> can be converted to </span>chemical energy<span> and vice versa through electrochemical reactions.</span>
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Which statement describes an intensive property of matter? <br>​
Pachacha [2.7K]

Answer:

hope it helped you.

Explanation:

The properties of matter that do not depend on the size or quantity of matter in any way are referred to as an intensive property of matter. Temperatures, density, color, melting and boiling point, etc., all are intensive property as they will not change with a change in size or quantity of matter.

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Attached

Explanation:

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2 years ago
Chemistry what is stoichiometry and the different formulas
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Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers. Hoped this helped!!!!. Also if you are trying to look for the formulas it should be online just type in stoichometry formulas.
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