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which ingredient is the limiting reactant if you have 5 cups of flour, 9 eggs and 3 tbs of oil? Given: 2 cups flour + 3 eggs + 1 tbs oil- 4 waffles
how many grams of water are made from the reaction of 16 grams of oxygen gas? Given: 2H2 + O2- 2H2O
How many moles of water are made from the reaction of 1.4 moles of hydrogen gas? Given: 2H2 + O2- 2H2O
What is the net ionic equation for the reaction of hydrochloric acid with potassium hydroxide
(H^+) +(OH-) - H2O
Consider the following generic chemical equation: 2A+5B-C+3D. If you react 4 units of A with 10 unites of B, which statement is true
there are equivalent amounts of A and B
What is the percent yield of CuS for the following reaction given that you start with 15.5 g of Na2S and 12.1g CuSO4? The actually amount of CuS produced was 3.05 g. Reaction Na2S+CuSO4- Na2So4+CuS
What is the limiting reactant for the following reaction given we have 3.4 moles of Ca(NO3)2 and 2.4 moles of Li3PO4? Reaction: 3Ca(NO3)2+2Li3PO4- 6LiNO3+ Ca3(PO4)2
The reaction Pb(NO3)2(aq)+K2SO4(aq)- PbSO4(s)+2KNO3(aq) is best classified as
Write a balanced net ionic equation for the reaction of Pb(NO3)2(aq) with NaI(aq)
What molarity should the stock solution be if you want to dilute 250 ML to 2L and have the final concentration be .103 M?
Tritium (3/1 H) is an isotope of hydrogen that is sometimes used to make the hands of watches glow in the dark. The half-life of tritium is 12.3 years. After 49 years, approximately how much of the original tritium remains?
Given that you wished to use exactly .325 mole of NaCl to prepare a 2.5 M NaCl solution, how many milliliters of solution must you prepare?
Suppose a Vodka martini contains 30% alcohol with the remaining portion of the drink composed of water. what is the solute in this type of martini?
What is the mass percent of an ammonium carbonate solution prepared by dissolving 33.2 grams of solid into 39.5 grams of water?
the self-amplifying reaction in which neutrons produced by the fission of one nucleus would induce fission in other nuclei is called
A Geiger-Muller counter detects radioactivitiy by:
ionization of argon gas in a chamber which produces an electrical signal
what is the molarity of a solution prepared by dissolving 54.3 g of Ca(NO3)2 into 355 mL of water?
for the following measured numbers the significant figures is indicated in parenthesis. which is correct
Perform the indicated operations and give the answer in cm with the proper number of significant figures, 12.64 cm -48 mm +.246 m=
which of the following is a part of Dalton's atomic theory
atoms are rearranged but not changed during a chemical reaction
which of the following is not explained by Dalton's atomic theory
the existence of more than one isotope of an element
the existence of electrons in atoms of all elements was demonstrated by
thomson's cathode ray tube experiment
What are the coefficients for the following reaction when it is properly balanced?
_ potassium iodide + __ lead (2) acetate- __ lead (2) iodide + __ potassium acetate
the elements with the highest electronegativity values tend to be found in the
upper right-side of the periodic table
all of the following statements are consistent with the kinetic molecular theory of gases EXCEPT
strong attractive forces hold the gas molecules together
A balloon filled with .5 L of air at sea level is submerged in the water to a depth that produces a pressure of 3.25 atm. What is the volume of the balloon at this depth?
a 325 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32C. If this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas?
what is the initial temperature of a gas if the volume changed from 1 L to 1.1 L and the final temperature was determined to be 255C
How many joules of heat are needed to completely vaporize 24.4 grams of water at its boiling point?
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