Answer: read your book
Explanation: if you read it should be in there
Iron is a type of element because iron is metal and metal is also a mineral
Hoped this helped
Answer:
sound waves travel.faster through materials that are more dense
Answer:
A.
Explanation:
the gradual movement of the continents across the earth's surface through geological time.
Answer: Thus concentration of 
in 
is 0.011 and in 
is 0.814
Explanation:
To calculate the concentration of , we use the equation given by neutralization reaction:
where,
are the n-factor, molarity and volume of acid which is 
are the n-factor, molarity and volume of base which is
We are given:
Putting values in above equation, we get:
The concentration in is 
Thus concentration of is 
and 
