Which of the following elements has both metallic and nonmetallic properties?

A. Ar

B. Ge

C. Mg

D. S

You have reacted calcium nitrate with sodium chloride, sodium phosphate, and sodium oxalate. of the three reactions which ones would form a precipitate?

A normal sheet of paper is about how many atoms thick? 10,000 100 1,000,000 1,000

What happens when additional electrons were placed in the atom?

Which of the following statements about minerals is false? a. a mineral can break in only one way. b. the densities of many minerals are quite similar. c. the color of a mineral's powder doesn't change. d. minerals reflect light in different ways.

2) 800mm of Hg to Kpa

An atom of which element has the largest atomic radius? (1) Fe (3) Si (2) Mg (4) Zn

Do amides or amines react with water?

What one characteristic of an atom determines what type of element it is

Problem page write a balanced half-reaction for the reduction of solid manganese dioxide mno2 to manganese ion mn 2 in acidic aqueous solution. be sure to add physical state symbols where appropriate.

What best describes measuring with a graduated cylinder?