Answer:
A smallest particle of an element that can take part in a chemical reaction is called an atom.
Explanation:
M=D*V
D=10.5 g/cm³
V=42.5 cm³
m= 10.5 g/cm³ * 42.5 cm³ ≈ 446 g
m≈446 g
Answer: The mole ratio of
to
is 1: 1
Explanation:
According to the balanced chemical equation ,the number of atoms of each element has to be same on reactant and product side. The stoichiometric coefficients of the species represent their number of moles.

Thus in the reactants, there is 1 mole of
and 1 mole of
molecule. And thus there is 1 mole of
in the product as well.
Thus the mole ratio of
to
is 1: 1
Answer:
the strength of gravitational force between two objects depends on two factors,mass and distance. the force of gravity the masses exert on each other. if one of the masses is doubled, the Force of gravity between the object is doubled. increases the force of gravity decreases.
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