Is hydrogen a molecule or compound

What did Democritus think that matter was made of?

Which zone has he highest average temperature all year

Jillian made a model of an animal cell. She used a round balloon to represent the cell membrane. She pushed objects like marbles and rocks into the balloon to show cell parts, then filled it with water to show fluid inside the cell.

Convert 1.64 pounds to grams and miligrams

What is the form of the Pythagorean triple generator? A. (x?+y? j * = (?-y? j * - (2xy) " O B. (x2+y? (x2 - y? j * + (2xy) ? O C. (x2 - y2) * (*? + y? y * - (2xy) ? O D. (x2 + y2) % = (+?] + (203)

Which of the following types of electromagnetic waves has a frequency greater than ultraviolet waves? A) X rays B) infrared waves C) microwaves D) visible light

For each metal complex give the coordination number for the metal species. m (nh34cl2

Particles in a liquid move around just as freely as particles in a solid. True or False

How did aristotles idea of matter differ from that of scientists

How does ease of oxidation correlate with activity? Do highly active metals tend to donate electrons or accept electrons from other metals?