← Chap7 notes PhySci Test
5 Written Questions
5 Matching Questions
- They are the same types of atoms but the bonds between them are rearranged
- you're able to see the changes
- Break bonds
- a Chemical reactions rearange the ______ between atoms.
- b Plant cells store energy in the form of _________.
- c Many forms of energy can be used to ___________.
- d Describe the atoms that are found in the products & reactants of a reaction.
- e you can tell that a chemical reaction is happening because?
5 Multiple Choice Questions
- What is energy that is stored in the form of chemical bonds?
- Many diffrent chemical reacitons take place inside your body _______ of the time.
A) part B) none C) all
- What is a reactant?
Sometimes, endothermic reactions need more energy than they can get from their surroundings?
- All combustion reactions are __________.
5 True/False Questions
Exothermic reaction → A chemical reaction in which energy is released to the surroundings as heat is called ________________.
energy → what do most chemical reactions need to get started?
From chemical reactions that change the food we eat & the oxygen we breath. → Where does the carbon dioxide come from that we exhale?
Created or destroyed → What happens to atoms in chemical reactions?
Many forms of energy. → What can be used to break bonds?