Significant figures are as follows:
zero before (0.12 = 3 sig fig)
zero trapped (1.02 = 3 sig figs, or 0.012 = 3 sig figs)
zero on the end for whole number (120 = <em>2</em> sig figs)
zero on the end for decimal (1.20 = 3 sig figs)
Here are the first couple of answers:
1. 3
7. 2
13. 2
2. 2
8. 4
Answer: 2.04 moles
Explanation:
Mass of H2SO4 = 200g
RMM of H2SO4 = (2*1) + 32 + (16*4)
= 2 +32 +64 = 98
n = Mass concentration / RMM
n = 200/98
n = 2.04moles
The answer is B cotton, since you can grow it.
The greatest amount of energy released per gram of reactants occurs during a (1) redox reaction, although it should be noted that there are exceptions depending on environment.
Answer:
HNO3 will dissociate into:
hydrogen ions with a positive (+1)
charge, and,
nitrate ions with a
negative (-1) charge.