These substance have a pH below 7 and turn litmus paper red.
What is an acid?
100
This is a bond between a metal and a non-metal.
What is an ionic bond?
100
In the first step of figuring out the name of a compound from the chemical formula you have to decid if the compound is _____________ or ___________.
What is ionic or covalent?
100
These are solutions with high amounts of H+, which has the ability to attack other molecules and pull them apart, making them an environmental concern.
What is an acid?
100
These are the units for measureing liquids.
What are cm^3, ml or liters?
200
Most people know that strong acids cause damage. If you have one of these that is strong they too can cause damage.
What is a base?
200
When this type of bonding occurs the electrons are shared by 2 or more atoms.
What is covalent bonding?
200
Simple ionic compounds are the simplest to name. Your use the element name for the +cation then you use the element name plus __________ for the anion-.
What is …...ide?
200
When particles of surfur and/or carbon compounds dissolve in water vapor this substance is produced.
What is acid rain?
200
Density compares the amount of matter in a substance and the amount of space it occupies. These are the units for density.
What are mass/volume, grams/ml, kg/liter?
Any of these are an acceptable answer.
300
This is the scale that we use to measure the strength of acids and bases.
What is the pH scale.
300
This is the type of bond that is formed between 2 non-metals than have similar electronegativity?
What are covalent bonds?
300
Naming covalent compound is similar to ionic compounds. Covalent compound use the name of the first element, add ide to the second element AND use greek prefixes in front of the negative anion if there is more than one atom. What would be the name of CCl4 (remember the 4 is really a subscript).
What is carbon tetrachloride?
300
This is a substance that is added to an acid to neutralize it.
What is a base?
300
We are all familiar with the gas pedal on a car, it is also called the accelerator. If we push down on the gas the car has a positive acceleration. If we ease up on the gas and it slows we have a negative acceleration. What are the units for acceleration?
What are meters/sec^2.
400
Would an acid with a pH of 2 be a strong or weak acid?
What is a strong acid.
400
This is the term we use for the electrons that are found in the outer energy level and are involved in covalent and ionic bonding.
What are valence electrons?
400
Naming ionic compounds that have a polyatomic ion is the most difficult. We use the element name for the +cation the polyatomic ion will have its own special name such as carbonate(CO3) or sulfate(S04). Then if the + cation can have more than one charge we add _________________ to show the charge on the anion.
What is roman numerals.
400
When lakes, streams, ponds become acidic due acid rain or industrial run-off this is a natural base that can be added to neutralize the acid?
What is limestone?
400
A simple way to convert from degrees C to degrees F is to double the degrees C and add 30. 23 C = (2(23) +30) or 76F. This is how we can quickly convert from degrees F to degrees C.
What is subtract 30 and divide by 2?
84F = (84-30)/2 = 54/2 = 27C
500
Rank (highest to lowest) the amount of information about an acid or a base you would get from cabbage juice indicator, litmus paper, and phenolphthalein solution.
What is
1. phenolphthalein - very sensitive and produces small changes in color that indicate strength of the acid or base
2. cabbage juice - changes a few different colors to indicate strength of the acid or base
3. litmus - tells if it is an acid or a base
500
This is the term we use when atoms that are strongly elctronegative covalently bond and steal additional elections giving the covalent compound a negative charge.
What are polyatomic ions?
500
What are 2 elements that can have a +1, +2 or a +3 charge?
What is copper, iron, cobalt, mercury, gold, led, tin.
500
When you combine HCl and K(OH), both substances break into ions. H+ Cl- K+ OH-. What are the products of this reaction.
What is HOH or H2O! and KCl?
500
The units for molarity are moles/liter and the units for molaltiy are moles/kilogram. This is what they tell us about a solution.