Asolution with a ph of is highly acidic. a. 1 b. 4 c. 7 d. 10 e. 13

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

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?