Which of the following is not the same as 8,540 centigrams?

0.0854 kg

O 85.45

O 8.54 hg

85,400 mg

A museum is creating an exhibit about solar systems. Which type of exhibit would best explain what solar systems are?

Sometimes rock formations form because pieces of the rock has been crumbled and been blown/washed away. This is and example of what?

What is the electron configuration of neptunium?

How many moles of aluminum are needed to make 9 moles of molecular hydrogen? given the reaction: 2 al + 6 hcl → 2 alcl3 + 3h2 6 moles 4 moles 3 moles 2 moles none of the above?

Arrange each set of atoms in order of increasing IE₁: (a) Sr, Ca, Ba (b) N, B, Ne (c) Br, Rb, Se (d) As, Sb, Sn

Which changes occur as a cadmium atom, Cd, becomes a cadmium ion, Cd2+? (1) The Cd atom gains two electrons and its radius decreases. (2) The Cd atom gains two electrons and its radius increases.

Explain Charles law

2 H2 + O2 → 2 H2O What is the product of this chemical reaction

Which of the following is a chemical property? A.) Ability to burn B.) Mass C.) Density D.) All of the above

What is the density of rock if it has a mass of 25 g?