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Make a creative story about the lesson of the polarity of molecules
C3H8 + O2 CO2 + H2O
If you start with 14.8g of C3H8 and 3.44g of O2, how many grams of H2O are produced?
Which is the limiting reagent (which reactant created less H2O? _______
How many grams of the non-limiting reagent are actually used?
How many grams of the non-limiting reagent are in excess?
Note : Balance first the equation
It becomes C3H8 +5O2 3 CO2 + 4H2O
For the following endothermic reaction at equilibrium
A(s) + B(aq) ⇌ C(aq)
Which of the following conditions will cause the reaction to produce more products?
Select as many answers as are appropriate however marks will be deducted for incorrect guesses.
Select one or more:
Lowering the temperature
Adding more "B"
Adding more "A"
Adding a catalyst
Adding more "C"
Raising the temperature
HOW MANY GRAMS SiO2 IS REQUIRED TO PRODUCE 73.8G OF SiC ?
Steam reacts reversibly with iron at red-heat in the following way.
3Fe(s)+4H 2 O(g) rightleftharpoons Fe 3 O 4 (s)+4H 2 (g)
Describe and explain what happens when the conditions of the reaction are varied as follows:
(a) Increasing the partial pressure of the steam.
(b) Adding more of the iron (I] ) diiron * (IV) oxide, F*e_{3} * O_{4}
(c) Removing the hydrogen gas formed.
Vinegar and water are placed in a 1000ml bottle. Determine the mass of each of the substances placed inside the bottle if the product is a 75% water solution.( density of vinegar= 960 kg/cu m, density of water=1000 kg/cu m.
Density of a Solid by Water Displacement
a. Mass of the sample, g
b. Volume of water in the cylinder, mL
c. Volume of water + sample, mL
d. Volume of sample(c-b), mL
e. Density of the solid sample, g/mL
Calculate the density of the solid sample. Show your solution.
If the pressure on 200cm3 of a sample of air is doubled at constant temperature. What will be it's new volume.
Naturally occurring lithium has 7.45% 6Li and 92.6% 7Li.what is the RAM of the lithium?
Convert 3m/s to km
#340153 on Dec 2023