Metals become shiny when light is pointed at them.
Answer:
Molarity= 0.57M
Explanation:
Mm= 58.5, V= 900ml= 0.9dm3
n= m/Mm = C×V
30/58.5= C× 0.9
C= 0.57M
Wood is type of biomass that’s uses heating homes, via wood burning fires, dates back centuries.
NAMASTE
HERE IS YOUR ANSWER:

Frequency (given) = 8.85×

hz
time period =

= 0.112 ×

= 1.12 ×
Answer: d) 164.9 g
Explanation:
To calculate the moles :
The balanced chemical reaction is:
According to stoichiometry :
2 moles of
require = 25 moles of
Thus 0.412 moles of
will require=
of
Mass of
Thus 164.9 g of oxygen is consumed.