Rules for counting significant figures
Zeros appearing between nonzero digits are significant. True or False.
True
What is a Synthesis reaction?
When two or more reactants combine to form a single product.
What is temperature measured in as it relates to the gas law?
Kelvin
What is the standard pressure in atm, kPa, mmHg, and psi?
1 atm
101.3 kPa
760 mmHg
14.969 psi
Matter is made up of...
Zeros at the end of a number and to the right of a decimal point are...
significant
AB -> A+B is the format of which reaction?
Decomposition reaction
In who's law does the temperature remain constant?
Boyles law
What is the triple point of a substance?
The triple point indicates the temperature and pressure conditions at which the solid, liquid, and vapor of the substance can coexist at equilibrium.
Elastic collisons is when...
Particles collide, they do so elastically, meaning that energy is transferred without any loss in total kinetic energy.
Is a zero that appears in front of all nonzero digits significant or not significant?
They are not significant.
What happens in a single replacement reaction?
One element replaces another in a compound.
What kind of relationship does Charles' Law have? Between what variables?
Direct relationship between the volume and the temperature.
What is the critical point of a substance?
The critical point of a substance indicates the critical temperature and the critical pressure.
Volume of the individual particles is negligible compared to the total volume of the gas. What postulate does this statement apply to?
Negligible Volume
How many significant digits does the answer of an adding or subtracting problem have?
The same number of digits to the right of the decimal as there are in the measurement that has the fewest digits to the tight of the decimal.
What reaction involves the exchange of ions between two compounds?
Double replacement reaction
In which law is the formula P1/T1 = P2/T2?
Gay-Lussac's Law
What is critical temperature?
Critical temperature is the temperature above which the substance cannot exist in the liquid state. (water cannot be liquified, no matter how much pressure is applied.)
True or False?
The average kinetic energy of gas particles is directly proportional to the temperature of the gas in Kelvin.
True
What is the rule for significant figures as it applies to multiplying and dividing?
The answer has to have the same amount of significant figures as the fewest number of significant figures in the measurement
What is significant about a Combustion reaction?
A Hydrocarbon reacts with oxygen, producing Carbon Dioxide and Water.
What must you add to temperature by if it is represented in Celcius?
(x)+(273.15)
What is critical pressure?
Critical pressure is the lowest pressure at which the substance can exist as a liquid at the critical temperature.
True or false?
There are intermolecular forces in the KMT.
False