The water table is the...

Chemistry

1 answer:

vovangra [49]3 years ago

3 0

B upper boundary of the zone of saturation, land beneath this line is saturated with water.

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The reaction CO2(g) → C(s) + O2(g) is a decomposition reaction. True False

Lyrx [107]

The reaction CO₂(g) → C(s) +O₂(g) is a decomposition reaction is true

Explanation

A Decomposition reaction is a reaction in which involve breaking down a compound into two or more simpler substances.

The reaction above is a decomposition reaction since CO₂ molecule is broken down into C (an element) and O₂ (a molecule).

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3 years ago

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What is the concentration in g/L of a solution containing 10 g of solute in 2 L of solution

alekssr [168]

The concentration is 5 g/L.

Concentration = mass/volume = 10 g/2 L = 5 g/L

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3 years ago

How does a screw make the work of fastening two objects together easier? A. The screw changes the direction of a force - it conv

Pachacha [2.7K]

D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.

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What parts of a divers body are most affected by pressure changes?

Yanka [14]

I would say the head and heart because if you swim deep in the ocean you will feel pressure in your heart and head because the muscles in your body are closing in on them

hope i helped

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3 years ago

Which one of the following statements is FALSE? a In a neutralization reaction, an acid reacts with base to produce a salt and H

pishuonlain [190]

Answer: Option (c) is the correct answer.

Explanation:

HF is a weak acid and not a strong acid. This is because fluorine is a highly electronegative atom and when it combines with a hydrogen atom then it will attract the valence electron of hydrogen atom more towards itself.

As a result, it will not dissociates easily to give hydrogen ion. Hence, it acts as a weak acid.

A neutralization reaction is defined as a reaction in which an acid reacts with a base to give salt and water. For example, $HCl + NaOH \rightarrow NaCl + H_{2}O$

It is true that, spectator ions "appear in the total ionic equation for a reaction, but not in the net ionic equation".

Titration is defined as a process in which concentration of an unknown solution is determined using a solution of known concentration.

Thus, we can conclude that the statement HF, HCl, and HNO3 are all examples of strong acids, is false.

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3 years ago