It would be 70 because there are 20 atoms in one calcium molecule and that times 3.50 it is 70.
ANSWER(S):
p= 3 g/cm³
EXPLANATION(S):
density formula: p= m/V; p= p, m= 9 g, V= 3
p= (9)/(3)
p= 3
p= 3 g/cm³
The narrower the tube, the water will rise to a greater height.
Explanation:
Capillary rise is the height to which the water rises within the tube, and decreases as the width of the tube increases.
Answer:
an electric cell is a device that is used to generate electricity, or one that is used to make chemical reactions possible by applying electricity.
Explanation:
Hope this helps
Explanation:
AH is negative because the reaction gives out heat (exothermic).
AS is negative because the total entropy of the reactants is greater than that of the products (there are 4 moles of gas on reactant side compared to only 1 mole on the product side). Thus, the reactants are said to be "messier" than the products.
AG is negative at lower temperatures because at low temperatures, -TAS is more negative, resulting in the negative sign of AG.
Hope this helps.
