periodic table
dilution
gas laws
acids and bases
random questions
100
what substance is Cl
Chlorine
100
dilution is adding what?
water
100
Gay- Lussac Law
P1/T1=P2/T2
100
what does the ph scale go to?
0-14
100
what is Avogadro number
6.023 X 10^23
200
what side of the staircase is metals?
left side
200
what is the formula
200
Ideal Gas Law
PV=nRT
200
what is the middle of the scale called?
#7 neutral
200
Which of the following is a chemical change
a)Mixing chalk powder with sand
b)Melting of ice
c)Dissolving sugar in water
d)Cooking an egg
d)Cooking an egg
300
what is the staircase made of?
metalloids
300
How does doubling the volume of a solution by adding solvent affect the molarity?
a)The molarity is doubled.
b)The effect cannot be determined.
c)The molarity is cut in half.
d)It does not change the molarity.
a)The molarity is doubled.
300
Boyle's Law
P1V1=P2V2
300
what side of the ph scale is acids on?
left
300
what structre is made of dots lines and symbols?
Lewis dot structure
400
what is the atomic weight of Hydrogen?
1
400
Dilution of a solution changes the?
a)moles of the solute
b)volume of the solution
c)molarity of the solution
b)volume of the solution and c)molarity of the solution
400
Avogadro's Law
V / n = constant
400
what does the reaction between acids and bases determine?
Ph
400
who invented the periodic table
Dmitri Mendeleev
500
Which scientist invented the earliest version of the periodic table?
A. Dmitri Mendeleev
B. Alexandre-Emile Béguyer de Chancourtois
C. Lothar Meyer
Alexandre-Emile Béguyer de Chancourtois
500
To dilute a solution means to add more solvent without the addition of more?
soloute
500
The gas laws are a group of laws that govern the behaviour of gases by providing relationships between the
volume, pressure, temperature, and # of moles
500
what color do acids and bases turn litmus papers?
Acids turn litmus paper red, bases turn it blue.
500
Why doesn't the planet Uranus explode if it contains so much hydrogen and methane?
chemical reactions need oxygen and there is none on uranus