Can some one work out this equation for me :)

Chemistry

1 answer:

Law Incorporation [45]2 years ago

4 0

Yo sup??

CaCO3 + 2 HCl ---------> CaCl2 + H2O + CO2

This is the balanced chemical equation

Hope this helps

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3 years ago

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Diano4ka-milaya [45]

Hey there,

Answer:

4 valence electrons.

Hope this helps :D

~Top☺

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2 years ago

According to the law of conservation of mass, if an element A has an atomic mass of 2 mass units and element B has an atomic mas

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EleoNora [17]

The question is incomplete. The complete question is:

The half-life for the decay of carbon-14 is 5.73x10^3 years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of woodfrom an archeological dig is measured to be 2.8x10^3 Bq. The activity in a similiar-sized sample of fresh wood is measured to be 3.0x10^3 Bq. Calculate the age of the artifact. Round your answer to 2 significant digits.

Answer:

570 years

Explanation:

The activity of the fresh sample is taken as the initial activity of the wood sample while the activity measured at a time t is the present activity of the wood artifact. The time taken for the wood to attain its current activity can be calculated from the formula shown in the image attached. The activity at a time t must always be less than the activity of a fresh wood sample. Detailed solution is found in the image attached.

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