A student on her way to school walks eastward in a straight line 20.0 meters towards the bus stop, but realizes she dropped her
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When copper carbonate is heated, it decomposes to form a black residue. This black residue is actually copper(II) oxide. Along with this black residue, carbon-dioxide is released. The complete reaction is the following:
The law of conservation of mass holds true. 123.6 g of copper carbonate decomposes to 79.6 g of copper oxide and (123.6 g-79.6 g=44 g) 44 g of carbon-dioxide.
Answer:
y becomes doubled.
Explanation:
If;
y =
what is the state of y when x is halved;
the given expression is an inverse relationship. When y increases, x is supposed to decrease and vice versa.
if x is halved; x =
=
Now compare :
:
we see that y becomes doubled