A scientific question A.
is testable.
B.
involves things that are measurable.
C.
produces repeatable investigations.
D.
all of these

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Apush or pull that moves or changes and object when to objects touch