PLEASE HELP! A 50.0 g sample of compound contains 2.20 x 10^23 molecules. Which of the following could be this compound? a. NH3
b. NF3
c. PCl5
d. PCl3
e. PH3

What state of matter is ice a. liquid b. element c. solid d. gas

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

Can someone check my work 98 5.05 acids and bases for this assignment you will be comparing acids and bases. the chart below will you organize the information needed: acids bases chemical properties (2) deodorant detergent vinger dish soap physical properties (2) orange juice toilet cleaner drain cleaner window cleaner ph level acid ph goes from 0-4 bases ph goes from 10-14 examples around you (2) vinger coffee lemon juice dark chocolate