choices? i cant tell without choices
Answer:
Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.
680/96
= 7.1
Invest in a calculator
Answer:
a) 45° b) 90°
Step-by-step explanation:
squares have 90 degree angles and half of that is 45
Answer:
Step-by-step explanation:
2x - 2 ≤ 12
2x ≤ 14
x ≤ 7
