Why are elements sometimes called pure

Which is most likely to occur to native plants when the chemical composition of the soil they live in changes? A. They will die B. They will grow larger C. They will increase in number. D. They will adapy to the new conditions

What does energy transformation mean

On (OH) 2+HCI->H2O+PbCI

Which process is NOT an exothermic process? A) Boiling B) Condensing C) Deposition D) Freezing

Which abiotic factor differentiates between the three major types of aquatic biomes? (freshwater, estuary, marine) Question 4 options: sunlight movement salinity oxygen

Which if the following is an example of a stratovolcano?

There are five elements named for famous scientists on the periodic table

What character acids is that they react with metals to

The energy of a particular color of green light is 3.81*10-22 kJ/photon. The wavelength of this light is nanometers

How many molecules are in. 25 mole of O2