Climate changes cause a drought. there is no food to collect. to survive, the animals must become predators, catch and kill prey for food. which group(s) would you expect to die out because of their mutations in this new environment? a) group b, d, e b) groups e, f, g c) all of the groups. d) groups b, d, e, f, g

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3