Chemistry

Valence Electronsandoxidation numbers (charges)

100

How many valence electrons does Hydrogen (H) have...?

What is 1

200

Boron (B) has _______oxidation number Charge...?

What is +3

300

Fluorine (F) has _______oxidation number Charge...?

What is -4

400

How many valence electrons does Silicon (Si) have...?

What is 4

500

Krypton (Kr) has _______oxidation number Charge...?

What is 0

5 Types of chemical reaction

100

C+H₂ --->CH₄ is what chemical reaction...?

What is Synthesis

200

CuCl₂ + H₂S ---> CuS + HCl is what chemical reaction...?

What is Double Replacement 

300

Name the 5 types of chemical reactions...?

What is Decomposition, Single replacement, Double replacement, and combustion

400

Al₂O₃ ---> Al + O₂ is what chemical reaction...?

What is Decomposition

500

Cl₂ +NaBr ---> NaCl + Br₂ is what chemical reaction...?

what is Single Replacement

Protons, Neutrons, Electrons, Atomic number, and Atomic mass States of matter and symbols

100

What is the Atomic # of Ni...?

What is 28

200

What is the symbol for Neon...?

What is Ne