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hjlf
3 years ago
10

Imagine that Kevin can instantly transport himself between Planet X and Planet Y. Which statement could be said about Kevin in t

his situation? Kevin’s weight may change between Planet X and Planet Y. Kevin’s volume may change between Planet X and Planet Y. Kevin’s mass may change between Planet X and Planet Y. Kevin’s matter may change between Planet X and Planet Y.
Chemistry
1 answer:
Temka [501]3 years ago
4 0

Answer:

Kevin’s weight may change between Planet X and Planet Y.

Explanation:

Mass is the amount of matter contained in an object. Gravity is Earth’s pull of a body towards its centre.  

Weight (W) is product of the mass (m) of the object and the force of gravity (g) acting on the object.  

W = mg  

The force of gravity may change between Plant X and Planet Y, and thus Kevin’s weight may change between Planet X and Planet Y.  

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Answer: a) Ba(ClO_3)_2\rightarrow BaCl_2+3O_2:  Decomposition

b) NaNO_2+HCl\rightarrow NaCl+HNO_2: double displacement

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Explanation:

Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Ba(ClO_3)_2\rightarrow BaCl_2+3O_2

A double displacement reaction is one in which exchange of ions take place.

NaNO_2+HCl\rightarrow NaCl+HNO_2

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ZnSO_4+Mg\rightarrow MgSO_4+Zn

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3 years ago
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Zigmanuir [339]

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Hope this helps :)

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