What is the actual amount of magnesium oxide produced
What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8grams of magnesium metal?
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Calculate the molar mass of a vapor that has a density of 7.535 g/L at 14°C and 743 torr.
A toothpaste contains 0.24 % by mass sodium fluoride, NaF and 0.30 % by mass of triclosan, C12H7Cl3O2. The mass of one tube of toothpaste is 119 g. a) How many moles of C atoms are in the toothpaste?
The carbon dioxide that is exhaled by astronauts who are on a space shuttle is scrubbed by pumping the air through canisters of lithium hydroxide, LiOH.
What concentration of aqueous NH3 is necessary to just start precipitation of Mn(OH)2 from a 0.020 M solution of MnSO4? Kb for ammonia is 1.8 x 10-5, Ksp for Mn(OH)2 is 4.6 x 10-14
Predict the atomic radius for selenium, Se, given the atomic radius of sulfur, S, (0.104 nm) and tellurium, Te, (0.143 nm)
A chemist determines that 65.4 g of zinc reacts with 32.1 g of sulfur. How many grams of zinc sulfide could be produced from 12.0 g of zinc metal?
Describe the octet rule in terms of noble gas configurations and potential energy
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