What ion must be present for a compound to be considered a base?

A solid mass of 25 g is mixed with 60 g if a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75 g. What is the mass of the gas released?

How many bonds does carbon atom form

Why can you remove paint with white spirit but not water?

Determine the value for the following reaction. 2HI (g) + 2.4 kcal → H2 (g) + l2 (g) ΔH =

Restaurant a's chicken salad contains the same number of grams of fat as the chicken salad of restaurant c. restaurant b's chicken salad contains 55 more grams of fat than restaurant a's chicken salad.

importance of pH value in daily life

How do metallic bonds differ from covalent and ionic bonds

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

How many grams of H₂ are produced with the reaction of 36 grams of water? 2 Na + 2 H20 - > 2 NaOH + h2

Which statement is the best description of a chemical bond? A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. c. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in a molecule.