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vlada-n [284]
3 years ago
10

IN A TEST! NEED HELP

Chemistry
2 answers:
Debora [2.8K]3 years ago
8 0

Answer: A

Explanation:

iragen [17]3 years ago
8 0
Hey the correct answer is A good luck
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Answer: its either argon or phosphorus is this a constructed response or a multiple choice

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Make notes on why did the levels of carbon dioxide in the atmosphere decrease?​
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Answer:

Carbon dioxide is a very soluble gas. It dissolves readily in water. As the oceans formed, carbon dioxide dissolved to form soluble carbonate compounds so its amount in the atmosphere decreased. Carbonate compounds were then precipitated as sedimentary rocks, eg limestone.

Uptake by living organisms

Carbon dioxide was also absorbed from the oceans into photosynthetic algae and plants. Many of these organisms, and the simple organisms in the food chains that they supported were turned into fossil fuels, eg crude oil, coal and natural gas, which all contain carbon.

Coal is a fossil fuel which was formed from trees which were in dense forests in low-lying wetland areas. Flooding caused the wood from these forests to be buried in a way that prevented oxidation taking place. Compression and heating over millions of years turned the wood into coal.

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5 0
3 years ago
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A sample of a substance has these characteristics:
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When a plant undergoes respiration it?
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3 years ago
A chemical reaction in which an acid and a base react to produce salt and water is called a neutralization reaction. In the neut
Pepsi [2]

Answer:

The answer to your question is Sodium Perchlorate

Explanation:

Data

which is the salt?

Chemical reaction

    Perchloric acid  +  Sodium hydroxide ⇒  Sodium perchlorate + Water

      HClO₄               +       NaOH                =         NaClO₄                 + H₂O

Process

In inorganic chemistry there are two types of salts:

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Oxysalts are inorganic compounds form by metal, a nonmetal, and oxygen (three elements).

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