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Chemical Reactions

Unit 2- Chemical Reactions

QuestionAnswer
What tiny particles make up all matter? atoms
Which subatomic particles have a negative charge? electrons
What are the 3 subatomic particles? protons, neutrons, electrons
What 2 subatomic particles are inside the nucleus of an atom? protons and neutrons
What subatomic particle has a positive charge? protons
Which subatomic particle is lost, gained, or shared when forming a chemical bond? electron
What are the vertical rows on the periodic table called? groups or families
What are the horizontal rows on the periodic table called? periods
Do elements in the same period share similar properties? no
Do elements in the same group or family share similar properties? yes
What is the number to the lower right-hand side of a chemical element that tells a chemist how many atoms of that element are present? Subscript
What is a series of chemical reactions that breaks down food to produce energy? Cellular Respiration
To balance an equation, you can NEVER change a _________ because that would change the substances in the equations. subscript
The Law of Conservation of Mass states: Matter cannot be created or destroyed
In what part of a cell does photosynthesis occur? chloroplast
What is a series of chemical reactions that take place in a plant cell to produce food? photosynthesis
What represents energy made in respiration? ATP
What is a pure substance? A substance that contains only one type of atom
What is a combination of 2 or more substances that are NOT chemically joined? mixture
What is the substance formed as a result of a chemical reaction? product
Where in an animal cell is energy produced? Mitochondria
What part of the plant do gases come into and leave the plant? stomata
What do humans do to gain energy when oxygen levels are low? Anaerobic Cellular Respiration
What chemical equation is C6H12O6 + 6O2 -->6CO2 +6H2O + ATP? Aerobic Cellular Respiration
Water + Carbon Dioxide + Sunlight --> Glucose + Oxygen is the word equation for what process? Photosynthesis