maddy3lizabeth

13.12.2021 • 

Physics

This chemical equation is balanced. 2Na + 2H20 → 2NaOH + H2
How does this equation show the conservation of matter in a chemical
reaction?
O A. The number of substances in the reactants is equal to the number
of substances in the products.
O B. The reactants and products have the same kinds of atoms and
equal numbers of each kind.
C. The coefficients and subscripts in the reactants are the same as
in the products.
D. The reactants and products are substances that each have equal
numbers of atoms.

Ответ:

lLavenderl

04.04.2020

Physics

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Number of Small Cones Sold=22

Number of Large Cones Sold=34

Step-by-step explanation:

Suppose,

Number of Small Cones Sold: s

Number of Large Cones Sold: l

For the condition that, larges cones sold were 12 more than small ones, equation would be

and for the total revenue condition of $163

By solving equation (i) and (ii) simultaneously, we get

s=22

and

l=34

Hence, small cones sold would be 22 and large cones sold would be 34.

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