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1. When 14.25 g of magnesium was heated in air, 23.61 gof magnesium oxide was produced.
a) What mass of oxygen has combined with the magnesium?
b) What percent of the magnesium oxide is magnesium?
2. When aluminum combines with chlorine gas, theyproduce the substance aluminum choride. If 4.94 g of aluminumchloride is formed from 1.00 g of aluminum, how many grams ofchlorine will combine with 6.25 g of aluminum?
If you are given a 0.33 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced
the density of a liquid sulfur compound is 1.14 gml1. this compound contains 23.7 sulfur. how many milliliters of the
Draw structural formulas for the following compounds, and mark any chiral centers (asymmetric carbons) with an asterisk: l-bromobutane, 2- bromobutane
The molecular geometries for H2O and SO2 are bent. The H-O-H bond angle in H2O is about 109degrees, whereas the bond angle for O-S-O is about 120degrees, EXplain using lewis diagrams why the molecules have the same molecular geometry but different..
Calculate the percent yield of this reaction? 4. Calculate the Atomic economy and Experiment Atomic economy? 5. Calculate E-product
what is the partial pressure of nitrogen in a container that contains 3.96mol of oxygen
A 1.95 gram sample of sodium sulfate hydrate lost 0.756 gram of water when heated to constant mass. What is the formula of the hydrate?
What are the active ingredients & determine what possible tests to perform to identify each active ingredient. (what is the expected result?) - can't use melting points, boiling points, burning of solids, benedict's solution and tasting.
Calculate the partial pressure of each gas in the container. Express the pressure values numerically in atmospheres, separated by commas. Enter the partial pressure of methane first, then ethane, then propane.
Concentrated hydrochloric acid is 12 M and has a density of 1.18 g/mL. Calculate the mass in grams of a 0.025 L sample of concentrated hydrochloric acid.
The density of aluminum is 2.70 g/cm3. What is the volume of one mole of aluminum?
If the metal crystallizes in a body-centered cubic structure, which choice is closest to the atomic mass?
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