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the law of constant composition states
all samples of a given compound have the same proportions of their constiituent elements
the formula for potassium cholrate is KclO3 For madnesium chloride MgCl2 for magnesium chlorate
a compound has a formula mass of 61.98 amu is comprised of atoms of sodium and oxygen in a definite ratio
mass ratio of K to F in a compound is 2.06:1 how many grams of F are needed to react with 97.5g of K
which of the following statements about the mole is false
one mole of water contains 1/2 mole of oxygen atoms
in comparing 1 mole of carbon atoms to one mole of magnesium atoms, which is true
the mass of 1 mole of magnesium is gretter than the mass of 1 mole of carbon
carbon dioxide contain 3.8 moles of oxygen atoms how many moles of carbon dioxide are in the sample
iron ore sample is found to be 35.00% Fe by mass how many grams of ore are needed to obstrain 454.0 grmas of Fe
chromium oxide compound contains 104.0 grams of chromium and 48.0 grans if ixygen the most likely empirical fomrula of this compound
what is the molecular formula of a compound given the molar of the compound is 30.04 grams and the empirical fomrula is NH
If 3.011x10 to the 23rd molecules have a mass of 20.04 grams what is the molar mass of this substance
if you had an aqueous mixture that contained Ag+K+and Pb+2 cations how many different solids could precipitate if a chloride colution was added
what would be the formula of the precipitate that forms when Pb(NO3)2(aq) and K2SO4(aq) are mixed
in writing the chemical equation for a precipitation reaction what abb. of the physical state must appear with one of the products
considering the following precipitating reaction Pb(NO3)2(aq)+2KI(aq)>PbI2(s)+2KNO3(aq) which would not be spectator ions
what type of reaction occurs when a silver nitrate solution is mixed with sodium chloride solution
which of the following types of compounds will not undergo a gas evolution reaction which acid is added
which of following statements about writing molecular complete and net ionic equations is false
all of the statements are true
which of the following statements about redox reactions is false
a reation can result in either oxidation or reduction not both
when wter is heated bubbles form in the water is the evidence of a chemical reaction
no boiling water is a physcial change
which of the following statements about balancing reactions is false
when coefficient are added the type of compounds is chnaged in the chemical reaction
sodium metal with water to form aqueous sodium hydroxide and hydrogen gas which equation below best descrbies for this reaction
the compound sodium sulfate is solube in water when this compound dissolves in water which ion listed below would be present is solution
So4 to the 2____
what type of reactions occurs when hydrocholoric acid solution is mixed with a sodium bicarbonate solution
Quiz question vitamin C is known chemically by the name asorbic acid. Determine the empirical formula of asorbic acid if it is composed of 40.92% carbon, 4.58% hydrogen and 54.50% oxygen
Quiz question how many grams of calcium phosphate are theoretically produced if we start with 3.40 moles of Ca(NO3)2 and 2.40 moles of Li3PO4
Quiz question when the equation ___O2+____C5H12>____CO2+___H2O is balanced the coeffiecent of O2 is
Quiz question what is the limiting reactant for the reaction below is given that you start with 10.0 grams of Al and 19.0 grams of O2
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