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IceJOKER [234]
2 years ago
8

Conservation of resources includes the following actions EXCEPT

Chemistry
1 answer:
alexdok [17]2 years ago
3 0

Answer:

C : runoff

Explanation:

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One way to ensure that scientific claims are valid is to analyze who is presenting the information: only trust information prese
Marina86 [1]

False

Explanation:

The best way to ensure scientific claims are valid is to subject them to various tests. Scientific claims has nothing to do with the body presenting them. Claims are authenticated following due scientific process.

  • Scientific method provides a way of ascertaining the validity of an assumption.
  • If the claims is not supported by the body of evidence obtained, then the claim has to be modified or refuted.
  • When the claim is consistent with various infallible proof from different sources, then it can be accepted.

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If I touch a hot object, my hand gets hot through which type of heat transfer?
mamaluj [8]

Answer:

Thermal Transfer.

Explanation:

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How many protons, and neutrons are in nuclide tin-115?
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What solute particles are present in an aqueous solution of CH3COCH3?
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4 0
3 years ago
describe how a pure dry sample of solid lead carbonate can be obtained from sodium carbonate solution and lead nitrate solution
djyliett [7]

Answer:

Soluble salts can be made by reacting acids with soluble or insoluble reactants. Titration must be used if the reactants are soluble. Insoluble salts are made by precipitation reactions.

Making insoluble salts

An insoluble salt can be prepared by reacting two suitable solutions together to form a precipitate.

Determining suitable solutions

All nitrates and all sodium salts are soluble. This means a given precipitate XY can be produced by mixing together solutions of:

X nitrate

sodium Y

For example, to prepare a precipitate of calcium carbonate:

X = calcium and Y = carbonate

mix calcium nitrate solution and sodium carbonate solution together

calcium nitrate + sodium carbonate → sodium nitrate + calcium carbonate

Ca(NO3)2(aq) + Na2CO3(aq) → 2NaNO3(aq) + CaCO3(s)

It also works if potassium carbonate solution or ammonium carbonate solution is used instead of sodium carbonate solution. Remember that all common potassium and ammonium salts are soluble.

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Explanation:

7 0
2 years ago
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