Is the dissolution of ammonium chloride in water an exothermic or endothermic

process.

The bonding of two amino acids to form a larger molecule requires the addition of nitrogen the release of carbon dioxide the release of a water molecule the addition of a water molecule

In a chemical reaction, if a color change is detected, if an odor change is detected, or if a precipitate is formed, then: a chemical reaction has definitely occurred only physical reactions have occurred a chemical reaction may have occurred both

Which of these types of rock can undergo metamorphism? Select all that apply. Igneous-metamorphic-sedimentary-no answer text provided.

Rubbing alcohol evaporates from your hand quickly, leaving a cooling effect on your skin. Because evaporation is an example of a physical property, how do the molecules of gas compare to the molecules as a liquid?

Is the equation 2NaCl balenced

In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student generated 3.7 g of barium carbonate from 2.0 g of their alkali metal carbonate.

Give the state of matter that water is in as it moves through earths system

What happens to the volume of a substance as temperatures rises?

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 22.5 mg.

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction