Atoms
What is the formula for water
H2O
Is weight a force?
Name 2 factors that make rate of reaction faster?
Heat & Concentration
What is diffusion
The net movement of particles from a high concentrztion area to a low concentration area
What makes tobacco adictive
Nicotine
What is the valence of electrons in the outer shell
8
Can energy be created or destroyed?
Nope
What is a cataliyst
An outside element made to accelerate the rate of reaction but does not affect it’s products
What is water potential
it is the amount of water in a concentrated solution
In what position is the diaphragm when we inhale
Flat and contracted
What is the formula for glucose
C6H12O6
What is newtons first law
To change position, a force in needed
How do you measure rate of reaction?
Delta change/ delta time (watching the dissapearance of a reactant or the apprearance of a product over time
When does osmosis end?
osmosis ends when the amount of concentration is the same on either sides
What is respiration?
The procces in which our body releases energy from digested food (glucose)
Can atoms be broken apart
Yes! That is where some types of bombes come from
How much is a mole
6.02 x 1023
What is the diference between a chemical procces and a physical procces
A chemical change cannot be reversed by a physical procces
When there is less concentration of sugar per water particle, what is the water potential?
High, duh
what organ brings oxygen to our lungs and how?
The diaphragm contracts and flattens which creates a vacuum that sucks in air to our lungs
What are isotopes?
Atoms with the same number of protons but diferent amounts of neutrons
What is the biggest paradox of the law of conservation of energy?(it has ssomething to do with the big bang)
If energy can’t be created where did the big bang’s energy come from?
What is the rate of reaction of a nuclear bomb exploding
10 million meters per second
In what solution is a plant cell turgid
Hypotonic (pure water)
What is the chemical in cigarrettes that damage our lungs