Date post: | 26-Dec-2015 |
Category: |
Documents |
Upload: | lydia-caldwell |
View: | 212 times |
Download: | 0 times |
RadioactivityIons & Compounds
pH, acids, and bases
Endo vs Exothemic
States of Matter
Random Science Stuff
$200 $200 $200 $200 $200 $200
$400 $400 $400 $400 $400 $400
$600 $600 $600 $600 $600 $600
$800 $800 $800 $800 $800 $800
$1000 $1000 $1000 $1000 $1000 $1000
Final Jeopardy
Final Jeopardy Category
Balancing Equations
Final Jeopardy
What is Zn + 2 HCl --- ZnCl2 + H2
This the correct balanced equation for the following
chemical reaction.Zn + HCl --> ZnCl2 + H2
$200
What are a helium nucleus or two protons and two neutrons?
Alpha particles are made of these subatomic particles.
$400
What are electrons?
Beta particles are made of this subatomic particle.
$600
What is unstable?
The nucleus of a radioactive atom is this due to the large
number of protons and neutrons inside it.
$800
What is Thorium (Th) because it has an atomic number greater than 83.
Of the following elements, this one is more likely to be radioactive because of its
atomic number. Neon (Ne), Thorium (Th), or Barium (Ba)?
$1000
What is it changes into a different element?
This is what happens when an element releases an alpha or
beta particle during radioactive decay.
$200
What is it loses an electron?
This is how an element becomes positively charged.
$400
What is Be, Mg, Ca, Sr, Ba, or Ra (anything with a +2 charge)?
This element will form in a 1:1 ratio with sulfur (S).
$600
What is substance 2 is ionic and substance 1 is covalent.
Substance 1 melts and substance 2 does not melt.
This substance is ionic.
This substance is covalent.
$800
What is it becomes a Fluorine ion with a -1 charge (F-1)
This is what a Fluorine atom becomes if it gains an
electron.
$1000What is salt water because it is an ionic substance
and ionic substances conduct electricity in solution?
Of the following, this one conducts electricity for this reason. The compounds to
choose from are salt water or sugar water. Don’t forget the
reason.
$200
What is 0 to 6.9 or less than 7?
This is the pH range for acids.
$400
What is A.?
This answer choice correctly identifies a base.
A. Feels slippery
B. produces H+ ions in solution
C. tastes sour
D. turns blue litmus red
$600
What is C. grapes?
Of the following, this one is the most acidic substance.
A. bananas (pH 4.7)
B. celery (pH 5.9)
C. grapes (pH 3.0)
D. lettuce (pH 6.9)
$800
What is the pH will become more neutral (closer to 7) or the pH value will go down?
A student adds hydrochloric acid to ammonia. This is
what will happen to the pH of the ammonia.
$1000
What is add a weak base to the water?
Fish tank water must be kept at a particular pH level so the fish stay healthy. Your fish tank has
a pH of 5. This is what you should add to neutralize the pH
of the water.
$200
What is energy is absorbed by the surroundings and the reaction gets colder?
This is what happens during an endothermic reaction.
$400
What is energy is released to the surroundings and the reaction gets hotter?
This is what happens during an exothermic reaction.
$600
What is endothermic because heat is absorbed (heat goes in) and causes the
products to feel cold?
The following is an example of an endo or exothermic
reaction for this reason- the reaction between Vinegar and
Baking Soda.
$800
What is endothermic because heat goes into the egg to cook it?
The following is an example of an endo or exothermic reaction for this reason-
cooking an egg.
$1000
What is exothermic because heat was given off as the products (H2O and O2) were
made?The following is an example
of an endo or exothermic reaction for this reason- the
decomposition of H2O2
(Elephant toothpaste).
$200
What is tightly (closely) packed together vibrating next to each other?
This is how the molecules in a solid are arranged.
$400
What is the molecules slow down?
This is what happens to molecules of a substance as
heat is removed.
$600
What is the sauce molecules move faster and get farther apart?
Suzie heats spaghetti sauce in a pot on the stove. This is what happens to
the molecules in the sauce as the temperature increases.
$800
What is B.
According to the illustration above, what happens to water molecules when water is heated?
A. Their energy level decreases.B. They move farther apart.C. They move more slowly.D. They stop moving.
0oC 120oC
$1000What is a phase change (boiling or melting) b/c temperature doesn’t change?
This is what is happening from point A to point B and this is how you know.
Tem
p
Energy
A B
$200
What is make observations and collect data?
This step of the scientific method would be the most critical step to a forensic
scientist like those on the TV show CSI.
$400
What is the strong nuclear force?
This force in the nucleus is responsible for keeping the protons and neutrons in the
center of an atom.
$600
What is 2 Mg + O2 --- 2 MgO
This is the correct balanced chemical equation for the
reaction between Mg and O2.
Mg + O2 --- MgO
$800
What is it was an exothermic reaction because energy (heat and light) was given off as a result of the combustion reaction?
The demo with the water jug, rubbing alcohol, and a match was an example of this type of reaction for this reason.
$1000
Daily Double
Daily Double
The electrons would fall into the nucleus and become attracted to the positively
charged protons because opposite charges attract.
This is what would happen to the electrons if the electromagnetic force that keeps them spinning around the nucleus were lost.
The Jeopardy champion!