Which equation illustrates conservation of mass? 1. H2 + Cl2 - HC1

2. H I C12 - 2HC1

3. H2 + O2 - H20

4. H2 - 02 - 2H20

What do islands become once erosion breaks them down?

A cell placed in a hypertonic solution will shrink in a process called crenation. A cell placed in a hypotonic solution will swell in a process called hemolysis.

What happens when a penny is dropped from a height of 20 meters

Using the given table of electronegativity values, determine whether each bond is nonpolar covalent, polar covalent, or ionic. Table: 1st column: Element (F, O, Cl, Br, I, S) 2nd Column: Electronegativity (4.0, 3.5, 3.0, 2.9, 2.7, 2.

Which of the following types of mixtures exhibit the Tyndall effect? a. solutions c. colloids b. suspensions d. none of the above

Refrigerators are usually kept at about 5°C, while room temperature is about 20°C. If you were to take an ""empty"" sealed 2-liter soda bottle at room temperature and place it in the fridge, would you expect it to contract to one-fourth its original

You want to analyze a cadmium nitrate solution. what mass of naoh is needed to precipitate the cd2 + ions from 32.7 ml of 0.499 m cd (no3) 2 solution?

How much is 35° C in F?

Which describes a precipitate in a chemical reaction? a a gaseous product formed from aqueous reactants b a solid reactant that forms aqueous product c a gaseous reactant that forms aqueous products d a solid product formed from aqueous reactants

Prepare a solution that is 0.1 M acetic acid and 0.1 M sodium acetate by measuring out 5.0 mL of the 1.0 M acetic acid solution and 5.0 mL of the 1.0 M sodium acetate solution in a 100 mL graduated cylinder, diluting the 10.