Cards in this guide (25)
How many moles of magnesium oxide are formed when 4 moles of magnesium react with oxygen
Four (4) moles of magnesium oxide are formed when 4 moles of
magnesium react with oxygen.
The subscripts of a compound indicate
Sodium will react with oxygen to form sodium oxide Use the formula below to determine how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction
What is a double replacement equation is composed of
A double replacement equation is composed of two compounds
reacting to form two different compounds.
The ideal gas law measures pressure in
Omar was recording his preliminary data before beginning an experiment on gas behavior The room temperature was 298K and atmospheric pressure was 1 ATM Omar used an acceptable abbreviation of thes
Which of these answers best defines climax
the turning point of the story at which the most action
occurs
The molar mass of a mole of lead is approximately grams
Choose the correct formula for finding percent of yield
(practical yield/theoretical yield) x 100
Sophie was asked to distinguish gases from solids and liquids Which of the following answers would be most correct
Gases are the least dense, have the greatest particle energy,
and have no specific shape.
This term indicates that a problem is asking how much of a product will be made by a reaction
What term is defined as the number of moles of solute divided by the number of liters of solution
Molarity, abbrev. M, units: mol/L, mmol/ml
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound
The elements in an imaginary compound exist in the mole ratio of 1 3 1 for elements XY What will the empirical formula for the compound be
Type the capital letter that represents this equation after it has been correctly balanced Press Enter
Calculate the number of moles in 27.50 grams CaCOËÄ Type the correct answer then press Enter
Convert this temperature to the Kelvin scale -146ô C
To convert any temperature to the kelvin scale, when its in oC
add on 273.
so in answer to your question, -146oC = 127K
Convert this temperature to the Kelvin scale 0ô C
The formula for sugar is C12H22011 how many moles of carbon are in 2 moles of sugar
If there are 2 moles of sugar. and 12 atoms of carbon per sugar
molecule then there will be 24 moles of carbon atoms.
What type of conflict is illustrated by this scenario A man questions his religious teachings and seeks the meaning of life
individual vs. the universe
Which is the correct set of coefficients for the equation below na2cr2o7 plus alpo4 na3po4 plus al2cr2o73
Copper will react with silver nitrate to form copper nitrate and silver From this reaction 127.1 grams of copper will produce how many grams of silver
The formula for potassium dichromate is How many grams of oxygen will be in 2 moles of potassium dichromate
224 grams of oxygen are in 2 moles of potassium dichromate.
A compound found to contain 75.7 arsenic and 24.3 oxygen would have which of the empirical formulas below
Choose the best definition of STP
a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+
