What is a bond that would form between two non-metals?
Covalent Bonds
100
What Ions do acids release when dissolved in water?
Hydrogen (H+) Ions
100
Two different elements can have the same number of protons.
Can should be replaced with can't.
100
List the three elementary particles that form atoms.
Electron - Negative
Proton - Positive
Neutron - Neutral
100
The pH scale ranges from _ to _.
0 to 14
200
What is the name of a bond between two elements that share electrons unequally?
An Ionic Bond
200
What does a base release when dissolved in water?
Hydroxide (OH-) Ions
200
Water mixed with clay it is homogeneous because the clay has settled on the bottom or is floating around the mixture.
Homogeneous should be replaced with Heterogenous
200
Carbon which has 6 protons, has a(n) ________ called Carbon 14. Which occurs when there are more neutrons than are regularly there.
Isotope
200
Each number up on the pH scale means that the substance is _ times as acidic or basic as the previous one.
10
300
What kind of bond would form between Oxygen and Hydrogen?
Hydrogen Bond
300
What is an ion?
Ions are atoms that have a positive or negative charge from a loss or gain of an electron.
300
DNA feeds our body energy, and is made in the mitochondrion.
DNA should be replaced with ATP
300
How is the periodic table divided horizontally and vertically?
By groups and columns, respectively.
300
What ions increase acidity or basicity in a substance?
Hydrogen Ions increase acidity and Hydroxide Ions increase basicity.
400
Explain the difference between polar and nonpolar covalent bonds.
Polar molecules have unequal sharing of electrons, causing some parts to different charges. Nonpolar molecules have an equal sharing, with no significant changes in the charge.
400
(Get Your Periodic Table) What is the number of protons in Ununnilium?......(UUn)
110
400
The four major macromolecules are lipids, nucleic acids, carbohydrates, and fats.
Fats should be protein.
400
What are noble gases?
Elements that have 8 valence electrons and do not bond.
400
What is a buffer?
A buffer is a substance that diminishes the change in pH from added acids or bases.
500
What element most commonly bonds and can bond with nearly everything?
Hydrogen
500
Balance the following equation:
_K+_Cl^2+_NH^3+_I^2 ==> _KCl+_N2I6+_H^2
2K+Cl^2+2H^3+3I^2 ==>2KCl+N2I6+3H^2
500
Saturated fats have lots of empty spaces and double bonds. They are usually liquid oils at room temperature.
Saturated should be replaced with Unsaturated
500
What element has the atomic number of 36?
Krypton
500
What reaction occurs when a substance with a pH of 5 combines with a substance with a pH of 9?