The answer is true the si base unit for mass is the gram
(4) total number of valence electrons, because they exist in the same group.
<span>Haemoglobin is a pure substance because it contains only one type of atom. </span>
Answer:
When the T-shirt comes out of the clothes dryer, it is so warm that molecules from the detergent and fabric soft ener are likely to have changed phase and become gases. When they reach your nose, you are able to smell them.
Explanation:
V1/T1= V2/T2 V =volume T= temp (in kelvin unit)
2.5/(22+273)=V2/(43+273)
V2=2.7L
