Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
What is the law of conservation of matter?
Matter is neither created nor destroyed.
In a chemical formula, the substances on the left side are...
reactants.
In a chemical formula, the substances on the right side are...
products.
The number in front of the formula that shows how many molecules of reactants are needed to balance the formula is...
coefficient
Never change a ________ to balance a reaction, but instead change the __________.
formula
coefficient
This reaction combines two or more substances into one single product...
combination reaction or synthesis
Reactions that take apart one substance resulting in more than one product such as the processing of crude oil...
decomposition reaction.
This reaction replaces one element with another. It has a compound and an element as a reactant...
single-replacement reaction
In this reaction two ionic reactants switch cations and anions. It usually takes place in aqueous (water) solutions...
Double replacement
A solid that settle out of a solution during a reaction...
precipitate
Reactions that give off heat such as the reaction that powers a car...
exothermic
Reactions that absorb heat...
endothermic