How much does 9.8 liters of ammonia (nh3) weigh at standard temperature and pressure (273 k and 100 kpa)?

Why does a cake rise when you bake it? ♡

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?