Chemistry
The periodic table is organized by?
Atomic number
An acid would be related to which ion (Hydronium or Hydroxide)?
Hydronium
The nucleus is made up of?
Protons and Neutrons
Fog is an example of what? (colloid, solution, suspension)
colloid
Substances formed during chemical reactions are ________.
products
The plum pudding model was created by who?
JJ Thomson
The products of Neutralization are?
Water and a salt
Which two particles of an atom have about the same mass/same size
Protons and Neutrons
A homogenous mixture could also be called what?
solution
What unique ingredient is used in making gingerbread cookies?
Molasses
A _______ can be added to a chemical reaction to reduce activation energy
Catalyst
Neutral on the pH scale is ?
7
When Mendeleev made his arrangment of the elements in a table , he found that elements with ______ fell into groups on the table
similar properties
Catalysts _____ the activation energy needed to start a chemical reaction
lower
The first Christmas tree in the White House was in what year? (Bonus 500 if you know the president too)
a) 1776
b)1889
c)1913
d)1933
1889 - Harrison
Evidence of a chemical change would include?
varies
_____ ions are association to bases. The more of the ions that are in solution, the stronger the base.
Hydroxide
Group 8 of the Periodic Table is commonly referred to as?
BONUS 400
Why are they called that?
Noble Gases
Chemical reactions usually speed up at _______ temperatures
higher
When was White Christmas released?
a)1942
b)1933
c)1908
d)1988
Bonus 500: Who was the original singer of White Christmas?
1942, Bing Crosby
two
A strong acid + a weak base will result in?
An acid
Elements in Groups 3 through 12 of the periodic table are called
Transition metals
What does the --> sign in a chemical equation mean?
yeilds
What year was the day of Christmas made a Federal Holiday?
A) 1820
B) 1870
C) 1920
d) 1970
1870