2.

The number of protons in one atom of an element determines the atom's

., and the number of electrons determines

of and element.

to the number of

What type of bond joins the carbon atom to each of the hydrogen atoms? A molecule that consists of four hydrogen atoms and one carbon atom. Hydrogen atoms are connected to the carbon atom by an electron pair each.

Major groups of minerals include

How many protons electrons and neutrons does 13C contain

A solution of ammonia had a pH of 11.8. What is the concentration of OH ions in the solution?

To name a variable charge monatomic cation: -list the element name followed by a Roman numeral to represent the ion charge -drop the ending of the element name and replace it with the suffix "-ide" -list the element name followed by the word "ion"

True or False? The fatal 1930 incident in Muese Valley, Belgium, was associated with leakage of toxic chemicals from a former dump site.

How many moles of neon (Ne, 20.179 g/mol) are in 68.4 grams of neon

A 50.00 mL sample of groundwater is titrated with 0.0300 M EDTA. Of 12.40 mL of EDTA is required to titrate the 50.00 mL sample, what is the hardness of the groundwater in molarity and in parts per million of CaCO 3 by mass

Why openness is important to the progress of science?

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.