You are trapped inside a submarine that is going to self destruct in 30 minutes. You then find 3 objects that inject some sort of Gas. They are all labeled, 2 of them are lethal, and one of them is a breathing gas. Which Breath Injection would you use to get back up to the surface? (A) = Hydrogen Sulfide

(B) = Arsine

(C) = Hydrox

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.