Why were more than 2 total atoms needed to create this compound?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium