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What is the coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers?
___ Al4C3 + ___ H2O ? ___ Al(OH)3 + ___ CH4
A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water
Three liquids of different densities are mixed. Because they are not miscible (do not form a homogeneous solution with one other), they form discrete layers, one on top of the other.
The average mass of a carbon atom is 12.011. Assuming you were able to pick up only one carbon atom, the chances that you would choose a carbon atom with a mass of 12.011 is:
A quantity of oxygen occupies a volme of 19.2L at STP. How moles of oxygen are present?
If 66.5 ml of base is required to reach the second equivalence point, what is the concentration of the acid?
The CO2 output of an astronaut is about 1.3 kg/day. What is the minimum mass of LiOH required for a six-day space shuttle flight involving five astronauts?
Solid silicon and solid magnesium chloride form when silicon tetrachloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation. Include all of the appropriate notations.
Write the balanced net ionic equation for the reaction between KMnO4 and Na2S2O3 in neutral
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
Determine if the concentration of formaldehyde and methanol as measured in water will convert to its relative organic acids? If there is a measured concentration of formaldehyde and methanol in a 1000L solution of water at temperature = 180 degrees..
How many total moles of ions are released when the following sample dissolves completely in water. 8.47x10^-2g of Ca(NO3)2
a 130g piece of metal is heated to 286C and dropped into 87.0g of water at 26C, if the final temperature of the water is 58.3C.
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