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tekilochka [14]
2 years ago
14

Please help me..!!!!!!!!!!!!!

Chemistry
1 answer:
Viefleur [7K]2 years ago
5 0

Answer:

The answer you selected is correct (A)have

Explanation:

Red blood cells  one goal which is to carry oxygen throughtout your body.. without it you would die to lack of oxygen.

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When we change the concentration of the reactants in a chemical reaction, it affects the rate of reaction that happens in the process. Typically, the rate of reaction will decrease with time if the concentration of the reactants decreases because the reactants will be converted to products. Similarly, the rate of reaction will increase when the concentration of reactants are increased.

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What additional tests would be needed to establish the exact position of hydrogen?
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The question above is incomplete, the full question is given below:
What additional test would be needed to establish the exact position of hydrogen in the activity series of the following elements: magnesium, zinc, lead, copper and silver.

ANSWER
The position of hydrogen on a reactivity series can be determined by its ability to displace oxygen from the oxide of the metal concerned. If hydrogen is more reactive than a metal, it will displace oxygen from the metal oxide and reduce the metal oxide to its metal. If the metal is more reactive than hydrogen, hydrogen will not be able to reduce the metal oxide to its metal.
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