2 years ago

A candle is placed between a concave mirror and its focal point.

Chemistry

2 answers:

natali 33 [55]2 years ago

6 0

Virtual and enlarged..............

What grade are you in btw ?

jarptica [38.1K]2 years ago

3 0

Answer: C AND D

Explanation:

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In a solution with a pH of 4, the [OH-] is: 1x 10-10 1x 10-4 10 - 1x 10-8

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Answer:

1 x 10^-4

Explanation:

Use the equation pH = -log[OH-}

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4 years ago

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Explanation:

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3 years ago

The EPA scientist measures the pH level in one area of a river to be lower than normal and writes that a pollutant must have bee

shutvik [7]

Its an example of inference.

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3 years ago

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A hot object will have ___ kinetic energy

Masja [62]

Answer:

More/ Alot? I think is what you are looking for?

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It will definitely have some but I'm not sure on what word you are looking for.

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3 years ago

If 2.1 moles of NaCl is dissolved in a solution with a total volume of 7.3 liters, what is the molarity of the solution? Round t

Arturiano [62]

Answer:

The molarity of the solution is 0.29 $\frac{moles}{liter}$

Explanation:

Molarity, or molar concentration, is a measure of the concentration of a solute in a solution, be it some molecular, ionic or atomic species. It is defined as the number of moles of solute that are dissolved in a given volume.

Molarity is calculated as the quotient between the number of moles of solutes and the volume of the solution:

$Molarity=\frac{number of moles of solute}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$ .

In this case:

number of moles of solute= 2.1 moles
volume= 7.3 liters

Replacing:

$Molarity=\frac{2.1 moles}{7.3 liters}$

Molarity= 0.29 $\frac{moles}{liter}$

The molarity of the solution is 0.29 $\frac{moles}{liter}$

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3 years ago

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