When the number of protons and electrons are the same the atom is

A.) neutral.

B.) charge.

C.) balanced.

D.) unbalanced.

Arachidonic acid (5z, 8z, 11z, 14z-eicosatetraenoic acid) is an eicosanoid, a fatty acid containing 20 carbon atoms. it is the precursor of the prostaglandins and leukotrienes, important signaling molecules.

Which of the following is a contact force? A. Gravity B. Magnetism C. Friction D. Electrical force

Give 3examples of an element, define

75. In Canada and the United Kingdom, devices that measure blood glucose levels provide a reading in millimoles per liter. If a measurement of 5.3 mM is observed, what is the concentration of glucose (C6H12O6) in mg/dL?

Express as an ordinary number. 3.85 x 10^-3

What's difference between "formula unit" and "molecule"?

It is nighttime where Candice lives, so A. she will be able to see half of the Sun in the sky. B. she will be able to see both the Sun and the Moon in the sky. C. she will not be able to see the Sun in the sky. D.

How many moles are in 1.2*10^3g of ammonia

What are the two gases that escaped Earth's atmosphere during early formation? A. Helium and nitrogen B. Helium and oxygen C. Hydrogen and helium D. Hydrogen and nitrogen

Distinguish between elements, compound and mixture