Answer: it would be b time taken by the glass surface to dry
Explanation:
i had took the test and i got it right
Answer= C) CN contains a covalent bond.
The question ask for the percentage of the abundance of galium-69 where there is two isotopes of galium: the 69Ga and the 71Ga. The average atomic mass of gallium is 69.723 amu. So the formula would be <span>69.723amu=(%x)∗(68.926amu)+(1−%x)∗(70.025amu) and the answer to this is 1.58%</span>
Suspension. The particles are big enough for the eye to see, and will separate if left sitting.
Answer:
1
only 4 is the significant figure
we take tailing zeroes as significant figures only in case of decimals
