In the formula XF2, the element represented by X can be classified as a (1) Group 1 metal (2) Group 2 metal (3) Group 1 nonmetal (4) Group 2 nonmetal

Which word refers to the smallest functional unit of living thing

How many grams of carbonic acid were produced by the 3.00 g sample of NaHCO

Elements that can have several different structures with different physical properties are called?

An ionic compound is formed when there is a reaction between the elements a) strontium and chlorine b) hydrogen and chlorine c) nitrogen and oxygen d) sulfur and oxygen

What type of radioactive decay results in uranium-238 becoming thorium-234?

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure

Hexyne. What does the name of this hydrocarbon tell you about its molecular structure?

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed