Which of the following is an element?

a. zinc metal (zn)

b. carbon monoxide gas (co)

c. magnesium chloride salt (mgcl)

d. hydrochloric acid (hcl) ?

Which general trend is found in Period 2 on the periodic table as the elements are considered in order of increasing atomic number?

When an atom gains an electron, the resulting particle is calledA) a proton. B) an anion. C) a cation. D) an isotope. E) none of the above

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?

An element's reactivity and other chemical properties are determined by the number of

Name one other organ system that would be affected if it had no marrow. Explain?

A fish company delivers 22 kg of salmon, 5.5 kg of crab and 3.48 kg of oysters to your seafood restaurant. What is the mass, in kilograms of the seafood? What is the total number of pounds?

If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced?

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient for the H + (aq) ion.

Toussaint L' ouveeture lead a revolt that eventually resulted in Independence for

If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated with o2, how many binding sites are occupied by o2?