Volcanoes are openings in Earths crust where lava, gas, and ash can erupt. Where are active volcanoes located?

How does sugar affect the rate of cellular respiration in yeast?

The rate of a reaction can be observed by measuring the change in the amount of a reactant over time, as given in the graph below. How does the rate of a reaction change with time and how does the collision theory explain this change?

Which is denser air or carbon dioxide

A chemist wants to make 6.5 L of a. 350M CaCl2 solution. What mass of CaCl2 (in g) should the chemist use?

Which is an example of pure chemistry

Which of the following is not a possible sublevel? 1s 2p 3f 4d

Fish breathe oxygen, o2, dissolved in the water. since water is a polar substance and oxygen is a nonpolar substance, how can there be any oxygen, o2, in the water?

Barium carbonate, baco3, is stable at ambient temperatures, but decomposes to barium oxide and carbon dioxide at higher temperatures.

How do an isotope and a radioactive isotope differ?

What is a cause of polarity in water molecules?