Assessment

4. Element X is a metal that reacts to form XCI. It has the smallest metallic radius of its group. What is element X?

With which organisms do fungi partner to produce lichen and Mycorrhizae

Calculate the mass of oxygen needed to react 10.0g of calcium to form calcium oxide. 2CA+O2 = 2CaO

What is the relationship between different forms of energy?

An element consists of two isotopes. One with a mass of 79.95 amu and an abundance of 29.9%. The second isotope has a mass of 81.95 amu with an abundance of 70.1%. What is the molar mass of this element?

6 moles of potassium permanganate (KMnO4) are dissolved in enough water to make a 3M solution. What is the volume of the solution expressed in mL.

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