January 2024
What are the 3 phases?
Gas, Solid, Liquid
What is the law of conservation of mass?
Matter cannot be created or destroyed
What happens when you oil is placed in water?
The oil floats to the top of the water and doesn't mix
What does the BLA of a chemical reaction do?
It is the ion that gives away one of their protons.
What ecosystem is dying because of Ocean Acidification?
Coral reefs
Why is it hard to measure the volume of a gas?
The volume changes depending on temperature and pressure changes
Why do rockets use liquid hydrogen as fuel?
They have a low molecular weight and have a lot of energy.
What is a limiting reactant?
It's the limit to how many things you can make.
What do all Arrhenius acids and bases have in common?
They all conduct electricity
What material found on some animals is easily dissolved due to Ocean Acidification?
Seashells
What happens when two systems with different temperatures collide?
The energy between the systems in the form of heat will transfer
It is a temporary attractive force that forms temporary dipoles with 2 atoms
What is the solution, solvent, and solute in a cup of water with sugar in it?
Solution- The whole process
Solvent- The cup of water
Solute- The sugar
What do all Arrhenius bases have in common?
They turn the litmus paper blue and are bitter or poisonous.
What is pH?
The measurement of amount of Hydrogens ions in an aqueous solution
Why do scientists use a unit called a mole?
To make it easier to compare the number of particles in different substances
What is hydrogen bonding?
It is a special dipole-dipole attraction between molecules.
Why is it harder to dissolve bigger pieces of sugar than smaller pieces.
There are more particles to dissolve
What feature do all Arrhenius acids chemical formulas have in common?
They all have hydrogen
What is produced when CO2 reacts with H2O?
Carbonic Acid (H2CO3)
What kind of number is assumed to have unlimited #SF?
Exact numbers
Why does Oxygen have a Partial Negative Charge and Hydrogen have a Partial Positive Charge in a Water Molecule?
They have an unequal sharing of electrons.
Determine the LR and ER when making hot dogs
7 hot dogs, 5 hot dog buns
LR- Hot dog buns
ER- Hot dog
Which one of these is the BLB?
HCl(g)+H2O(I) <--> H3O(aq)+Cl-(aq)
H2O
What is produced when CO2 and CO3^-2? are neutralized by chemical reaction?
HCO3^-1