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Grace [21]
3 years ago
6

Why do scientists look for patterns in the world?

Chemistry
1 answer:
noname [10]3 years ago
5 0

Answer:

to forcast the future

Explanation:

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Which colligative property is employed when salt is put on an icy sidewalk to melt ice?
ankoles [38]
<span>The correct answer is 'freezing point depression'. Colligative properties depend on the concentration of molecules of a solute. Examples of other colligative properties are boiling point elevation or vapour pressure lowering. The salt causes ice on the side walk to melt because it lowers the freezing point. </span>
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3 years ago
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Write a general word equation for a neutralization reaction.
xenn [34]
Hydrochloric acid + Sodium hydroxide =Sodium chloride +water
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Show proof for brainliest(not suggested but i wanna know how you got your answer) i will give you 5 stars and brainliest:)
Nastasia [14]

Answer:

More oxygen is needed to produce more energy, and more carbon dioxide waste must be removed from the body.

Explanation:

Oxygen helps our cells work harder by breaking down the nutrients we get from food like sugars. With sugars and oxygen, our cells can create the energy they need to function. This process also produces carbon dioxide. The carbon dioxide produced is a waste product and needs to be removed. During exercise, your body needs more energy, which means your tissues consume more oxygen than they do at rest. Consuming more oxygen means you will also produce more carbon dioxide because your metabolic rate is elevated. The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out. When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward.

3 0
3 years ago
Electroysis is used for ​
Alina [70]

Answer:

Electrolysis is used extensively in metallurgical processes, such as in extraction (electrowinning) or purification (electrorefining) of metals from ores or compounds and in deposition of metals from solution (electroplating).

Explanation:

hope it helps

have a nice day

4 0
3 years ago
Why do chemical compounds dissolve more quickly in hot solvent than in cold solvent?
Oksana_A [137]
Chemical compounds<span> tend to </span>dissolve more quickly in hot solvent than in cold solvent, t<span>he </span>solvent<span> molecules have </span>more<span> energy to pull the solute particles apart. Give an example of two liquids that are miscible.

https://www.studyblue.com/notes/note/n/chemistry/deck/938054
</span>
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