What is the total number of moles of ca needed
Given the reaction: Ca + 2H2O → Ca(OH)2 + H2
What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
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Microwave ovens use microwave radiation to heat food. How many photons are required to heat 200. mL of coffee from 19°C to 64°C?
Sample of aluminum chloride increased in temperature by 3.5 K when the sample absorbed 167 J of energy. Calculate the number of moles of aluminum chloride in the sample. the C for aluminum chloride is 92 J/mol*K.
Determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of 102cm cubed at 97 degrees Celsius. The pressure of the chloroform is 728 mmHg.
A sample of oxygen at 48 C occupies 622 mL.If this sample later occupies 1252 mL at 55 C and 1.4 atm, what was its original pressure? Answer in units of atm.
A three-span continuous beam ABCD with three equal spans supports a uniform load with intensity q. Determine all reactions of this beam and draw the shear force and bending moment diagrams labelling all critical ordinates
A student dissolves two moles of Mg(NO3)2 into a beaker of water. How many nitrate ions are present in the solution?
Calculate the concentration of a monotropic basic solution, given that 99.3mL of the basic solution is neutralized by 83.0mL of a 0.0325M solution of HCl.
A student combusts 504.96 grams of ethene gas, C2H4. How many liters of CO2 (g) are produced at a pressure of 0.993 atm and a temperature of 295 K? C2H4 (g) + 3 O2 (g) -> 2 CO2 (g) + 2 H2O (g)
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but I would like to discuss to what extent employers should/should not influence or curb political participation in their workplaces.
Suppose you are the head of an island nation with a poor, growing population and the natural resources of the island are being degraded.
Question: What was the economic and political impact, if any protect the health and welfare to citizens ?
Problem: Article 3 of the Texas Constitution sets up the Texas Legislature. It also does which of the following?
Summarize how the ERA can be ratified and explain why this is the most likely way. You will draw on instances that are important to you
Which amendment to the U.S. Constitution is often called the "States' Rights Amendment" and is commonly used by states to challenge
Mechanisms of State-Led Development:** - **Industrial Policy:** Both countries used targeted industrial policies to support specific sectors, such as electroni