No of molecules = no of moles x avogadro’s number
0.75 ( 6.02 × 10²³) = 4.515 x 10²³ (standard from)
Answer:
I believe the top one is true! I'm sorry I couldn't answer them all :c
Step-by-step explanation:
Answer:
A not enough
Step-by-step explanation:
Answer:
-2x-7y=-4
Step-by-step explanation:
5x+-7x=-2x
-9y+2y=-7y
1+-5=-4
So -2x-7y=-4
Answer:
B
Step-by-step explanation:
