Elements, Compounds, Mixtures
A substance with only one kind of atom; cannot be broken down into other substances
What is an element
Elements are represented in chemical formulas in this way
What is by elemental symbol (or capital/one lowercase letter)
What is adhesion
Any substance with a pH below 7
What are acids
Mr. Urby's favorite soda
or cherry coke
A pure substance made of more than one type of atom; chemically bonded together
What is compound?
The coefficient (the large number in a chemical formula) tells you how many of this you have and how many times you do what
What are molecules and the number you multiply the subscripts by
The property of water where it sticks to itself
What is cohesion
Any substance with a pH above 7
What are bases
The total number of siblings Mr. Urby has
What is 19
Izabella, Maria, Matthew, Laszlo, Monica, Alejandro, Amado, Selena, Amaris, Andres, Marston, AJ, Patrick, Shane, James, Josie, Annie, Matthew, Mark
A mixture of substances where you can easily tell the different parts that make up the mixture
What is heterogeneous mixture?
This is what the law of conservation of mass states
What is that the mass (and atoms) before and after a reaction are conserved (the same!)
The property of water where the surface is closely packed together--bugs like water striders use this to glide across the surface
What is surface tension?
A substance with a pH of 7
What is neutral (water)
This is Mr. Urby's main in Super Smash Bros
Who is Ike
A mixture of substances where you cannot tell what makes up the substance; it is uniformly spread out
What is a homogeneous mixture?
The total number of each element in this chemical formula and if it follows the law of conservation of mass
6CO2 + 6H2O → C6H12O6 + 6O2
What is
C - 6
H - 12
O - 18
Yes, it follows the law of conservation of mass
The property of water responsible for causing surface tension
What is cohesion
What happens when you mix an equal amount of acid with a base (of equal or similar strength)
In college Mr. Urby worked as this
What is a radio DJ!
Answers vary
The total number of each element on reactant side and if it follows the law of conservation of mass
B2Br6 + 6HNO4 → 2B(NO3)3 + 6HBr
What is
B - 2
Br - 6
H - 6
N - 6
O - 24
No, does not follow law
This is how water is gathered by plants and flowers (explain using the properties of water)
What is cohesion--water travels together. Adhesion--water sticks to the plant stem and travels up against gravity. Overall called capillary action
2 properties each of acids and bases, and one similarity
What are
Acids: pH less than 7, sour, corrosive to metal, no specific texture
Bases: pH more than 7, bitter, corrosive to organic material, slippery
in common: corrosive
Mr. Urby's favorite pokemon (good luck bro)
Who is Mudkip or Mew