Chemical Equations

Balancing

100

You must change the ______________ to balance a compound

Subscripts

200

You must change this to balance a Chemical Reaction

Coeficients

300

What do we call an unbalanced equation

Skeleton equations 

400

What is wrong ? 

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O

O₂

500

What is wrong?

Ba₃N₂ + ₆H₂O → 3 Ba(OH)₂ + NH₃ 

6H₂O & 2NH₃

States

100

What state of matter is (aq)

Dissolved in water or a solution

200

The  symbol   (l)   means 

 a)  gas    b) heat   c) burn    d) liquid.

D - Liquid

300

 water solutions of potassium iodide plus tin (II) nitrate

would be written as?

KI_(aq) + SnNO_3(aq)

400

What state of matter is a precipitate?

(S) - Solid

500

sodium metal is placed in water. The solid sodium reacts with liquid water to produce molecular hydrogen gas and the ionic compound sodium hydroxide (a solid in pure form, but readily dissolved in water).

(Balance + sates) 

2Na(s)+2H₂O(l)⟶2NaOH(aq)+H₂(g)

Reaction Type

100

hydrogen gas    +    oxygen gas

Synthesis

200

C₇H₁₇ + O₂ ---> CO₂ + H₂O

Combustion

300

gold     +    silver chloride

Single Replacement

400

Decomp Reaction - Give an example

Breaking apart anything

H₂O ---> H₂ + O₂

500

potassium phosphate   +   barium chloride

Double Replacement

Predict the Product

100

silver metal    +    nickel (II) acetate

What metal compound is made?

Silver Acetate

200

sulfuric acid    +     manganese (III) hydroxide

What is made with hydroxide?

Water

300

solid calcium carbonate plus aluminum chloride in a water solution yields aqueous calcium chloride plus  ____________?

aluminum carbonate

400

 In a chemical reaction the total mass of the substance before the reaction compared to the total mass of the substance after the reaction is 

a)  usually smaller b) usually greater     c)  equal      d)  sometimes greater and sometimes smaller.

C - Equal

500

A balanced equation for a reaction between water solutions of sodium sulfate and lead (II) nitrate.   A precipitate of lead (II) sulfate is formed with an aqueous solution of the other product.

What is the other product?

Sodium Nitrate

SAY WHAT!?Common knowledge

100

1. How water is written scientifically?

Dihydrogen Monoxide

200

In which hand is the Statue of Liberty's torch?

  right

300

There are 12 buttons on a touch tone phone. What 2 symbols bear no digits?

*, #

400

A Cockroach's brain is in its?

Body

500

Frogs have a _____° visual range

360

The eyes of a frog are made and positioned in such a way that at any given moment they can see everything around them, including what is behind them. As if this did not make them difficult enough to sneak up on, frogs also sleep with both of their eyes open.