Post on 18-Jan-2016
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It’s getting hotin here.
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In perfectbalance
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Convert me.
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Switzerland wasneutral too.
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Count me in.
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Column 1, 100
Convert this temperature to Kelvin:
305 °C
Column 1, 200
This is standard temperature in Kelvin and
Celsius.
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The pressure of a gas at 45kPa and 12oC is lowered to 23kPa. What is the final temperature of the gas?
Column 1, 400
What is the final volume of a gas at 300K if the gas originally occupies 320 mL at 25 K?
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At 189 K and a pressure of 550 torr, a sample of nitrogen gas has a volume of 32.0 cm3. What volume does the gas occupy at 242 K and 675 torr?
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State the Law of Conservation of Matter.
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Complete an atom inventory for the following equation, then determine if the equation is balanced or not.
Li2O + H2O 2 LiOH
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In order to balance this equation, what coefficient must be placed in front of water?
Fe2O3 + H2 → Fe + H2O
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Show the coefficients used to balance the following chemical equation: H3PO4 + HCl → PCl5 + H2O
Column 2, 500
If you have 13 grams of N2, how many grams of NH3 will be created using the equation below?
N2 + H2→ NH3
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How many feet are there in 7 miles?
1 mile = 5280 feet
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Convert 26 grams of HF to moles.
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How many liters are in 800 mL?
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How many moles are present in 352 g of iron (III) oxide, Fe2O3?
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How many grams are present in 1.43 moles of magnesium hydroxide, Mg(OH)2?
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In the formula: (NH4)2SO3
The sulfite ion has a charge of (2-), therefore the ammonium
ion has a charge of this.
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Write the formula for the ionic compound calcium oxide.
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Write the formula for the ionic compound formed by the ions below.
Zn2+ OH-
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Write the formula for the ionic compound formed by the ions below.
CO32- Al3+
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Find the molar mass of strontium carbonate.
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How many atoms are in 5Zn3(PO4)2?
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How many neutrons are found in an isotope of
235U?92
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What is the mass number of an atom with 19 protons and 23 neutrons in its nucleus?
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Calculate the molar mass of Zn3(PO4)2
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How many more neutrons are found in the nucleus of an iron atom with a mass number 55 than in the nucleus of a calcium atom with a mass number 39?