Chemistry Flashcards
Is Tylenol a compound, mixture or element?
Compound. It has a chemical combination, but could also be a mixture if it in less fillers, binders, etc.
Is Carbon Monoxide a compound, mixture or element?
Compound. It has a chemical combination of carbon and oxygen
Is red bull a compound, element or mixture?
Mixture. It doesn’t have a chemical formula
Is trisodium phosphate a compound, element or mixture?
This is a household cleaner. It’s a compound because it has a chemical formula
List 3 indicators that a chemical reaction has occurred
Change in color, sound and hear gained/lost
Provide the name of one of the two semiconductors
Silicon
Provide the name of a transition element
Gold
What is the maximum amount of electrons that a P orbital can accommodate?
P= 6 electrons
What is the maximum amount of electrons that a D orbital can accommodate?
D= 10 electrons
What is the maximum amount of electrons that a S orbital can accommodate?
S= 2 electrons
What is the maximum amount of electrons that a F orbital can accommodate?
F= 14 electrons
What’s the symbol for an element that has 47 protons in it’s nucleus?
Ag
What is Ag’s atomic number?
47, atomic #= # of protons
When a metal reacts chemically, does it gain or lose electrons?
Loses electrons
When aluminum reacts chemically, does it gain or lose electrons?
Loses electrons
When chemically reacting, do halogens gain or lose electrons?
Gains electrons
How many electrons does halogen gain when reacting chemically?
Halogens gain one
How many electrons does oxygen tend to gain when it reacts chemically?
Oxygen tends to gain 2 electrons
What is the term for a material that can cause damage to an embryo/fetus?
Tetragen
What is the term for a material that tends to burst into flames when exposed to air?
Pyrophoric
True or False:
An irritant is a material that can cause cancer
False, they cause membrane/skin problems
Does a highly toxic material have a high or low LD50?
Low. The lower, the more toxic!
Which is more likely to support a fire, a flammable material or a combustible material?
Flammable
What is the name given to the compound that causes cancer?
Carcinogen
What is the defining characteristic of mutagen?
Changes DNA
Water-based fire extinguishers should never be used on what type of material?
Water reactive material
Which poses a greater threat, a combustible or flammable material? Explain.
Flammable, because it catches fire more easily.
If a compound is pyrophoric, should water based fire extinguishers be used? Explain.
No! Pyrophores tend to burst into flames when exposed to air, so a water based extinguisher would just make it worse.
If a compound is lethal in extremely small amounts, will it have a large or small LD50? Explain.
Small; the lower the LD50, the more dangerous it is
Provide the correct name for:
KHCO3
Potassium bicarbonate
Provide the correct name for:
LiClO4
Lithium perchlorate
Provide the correct name for:
As
Arsenic
Provide the correct name for:
AgCN
Silver cyanide
Provide the correct name for:
Fe(HSO4)4
Iron (IV) sulfate
Provide the correct name for:
NH4CH3CO2
Ammonium acetate
Provide the correct name for:
Cr(CN)6
Chromium (VI) cyanide
Provide the correct formula for:
Mercury
Hg
Provide the correct formula for:
Helium
He
Provide the correct formula for:
Sodium
Na
Provide the correct formula for:
Potassium iodide
KI
Provide the correct formula for:
Calcium acetate
Ca(CH3CO2)2
Provide the correct formula for:
Boron iodide
BrI3
Provide the correct formula for:
Aluminum nitride
AlN
Provide the correct formula for:
Ammonium permanganate
NH4MnO4
Provide the correct formula for:
Nickel (II) hydroxide
Ni(HO)2
Provide the correct formula for:
Lead (III) chromate
Pb2(CrO4)3
Is this a chemical or physical change?:
Making ice in the freezer
Physical, because you’re not changing any chemicals in this; no new compound was made
Is this a chemical or physical change?:
Burning Mg strips
Chemical change, because a new compound was made
Is this a chemical or physical change?:
Whiskey mash is distilled
Physical, no new compounds were made
Is this a chemical or physical change?:
Yeast ferment sugars in wine making
Chemical, new compounds were made
Is this a chemical or physical change?:
Wood burned in fire
Chemical, a new compound was made
Is this a chemical or physical change?:
Filtering drinking water
Physical because no new compounds were formed
Is this a chemical or physical change?:
Adding elemental sodium to water
Chemical, because you’re creating a new chemical
Is this a chemical or physical change?:
A piece of iron rusts
Chemical
Is this a chemical or physical change?:
A chipotle burrito is digested
Chemical, because new gassy chemicals are formed hahhaah
What 2 subatomic particles contribute most to the mass of an atom?
Protons & Neutrons