Concentration Question#1: What is the concentration in g/L if you dissolve 25 grams of sugar in 2 liters of water? (Don't forget units)

Concentration Question#2: What is the concentration in g/L if you dissolve 100 grams of additive in 750 ml of water? (Don't forget units)

Percent by Volume Question #1: What is the percent solution of 50 ml pure rubbing alcohol in 200 ml of water? (Don't forget units)

Percent by Volume Question #2: How much hydrogen peroxide is there in 200 ml of 3% hydrogen peroxide? (Don't forget units)

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!