It would be useful to know the distance between a gun fired and its target because if you know the distance you might be able to find more clues as to who did it by looking at where the shooter shoot the victim.
Answer:
The sun is our main source of heat and light energy. A source is where something comes from. The heat we feel and the light we see here on Earth is mainly from our nearest star, the sun.
Explanation:
If it is located at the second to last row of the periodic table (the halogen family), has seven electrons on it's outer shell, and has an oxidation number of -1, it is a halogen.
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When an acid is added to water, hydronium ions are formed.
What happens when the acid is added to water?
The acid has the ability to give protons that is hydrogen ions. When acid is added to water, water acts as base and takes up the protons released by the acid and forms hydronium ions that is H3O+ ions.
This process is exothermic in nature that is it releases heat. So acid is always added to water and not water to acid.
Therefore, when an acid is added to water, it gives hydronium ions in the water.
To learn more about the reaction of acids in water from the given link brainly.com/question/15215343
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