CH4 + 2O2 –> CO2 + 2H2O Left hand side: 1 C, 4 H, 4 O Right hand side: 1 C, 4 H, 4 O

Below are a few of the most commonly known compounds: Glucose – C6H12O6 Hydrochloric acid – HCl Water – H2O Salt – NaCl Octane – C8H18 Baking soda – NaHCO3 Hydrogen peroxide – H2O2

Noble gases: – Helium (He) – Neon (Ne) – Argon (Ar) – Krypton (Kr) – Xenon (Xe) – Radon (Rn)

Alkali metals: – Hydrogen (H) – Lithium (Li) – Sodium (Na) – Potassium (K) – Rubidium (Rb) – Casein (Cs) – Francium (Fr)

Elements: – Na = sodium – K = potassium – Ca = calcium – Mg = magnesium – C = carbon – Al = aluminum – S = sulfur – Cl = chlorine – O = oxygen – Fe = iron

Did you know? The ACT has a science section that tests skills such as analyzing scientific observations. Freezing: the substance changes from a liquid to a solid. Melting: the substance changes from the solid to the liquid. Condensation: the substances changes from a gas to a liquid. Vaporization: the substance changes from a liquid to[…]

– Solution = liquid mixture – Titrant = solution of a known concentration. Use a burette to put the titrant into a solution (in a beaker). – Solute = minor component that is uniformly distributed in the solvent – Solvent = major component that contains the solute – Precipitate = insoluble solid that emerges from[…]

There are 3/4 ways to separate 2 full sentences 1. period 2. semicolon ; 3. COMMA FANBOYS ,for ,and ,but ,or ,so ,nor 4. colon : 1-3 are only for 2 full sentences option 4 can or cannot be for two full sentences colons are also for lists and definitions/explanations

The SAT and ACT both test your precision of language. – No commas around a name – Watch for singular/plural issues (singular–it and plural–they) – No comma between subject and verb – The company made. no commas here – Check to make sure you have a full sentence – 3/4 ways to separate 2 full[…]

No commas for prepositional phrases. What does this mean? When you see words like in, on, for, by, from, to, with, around, of Don’t use commas for them. Examples – these sentences have no commas: The team that prevails in two of the three periods wins the game. Sweet Auburn’s designation in 1976 as a[…]