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Compute the following: Number of moles of copper in 254 g of…

Compute the following: Number of moles of copper in 254 g of copper[moles] Mass of 0.050 mol of copper[grams1] Mass of 1.81×1024 atoms of copper[grams2] Number of moles of copper in 2 moles of Cu3(PO4)2 [moles2]

Published January 20, 2025
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The amount of phosphorus in an 85 kg person is approximately…

The amount of phosphorus in an 85 kg person is approximately 0.9 kg. What is the weight of phosphorus in pounds?

Published January 20, 2025
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Identify the period and the group number of each element Be …

Identify the period and the group number of each element Be  period[period1]group[group1] Se  period[period2]group[group2] Re  period[period3]group[group3] Fe  period[period4]group[group4] Ce  period[period5]group[group5]

Published January 20, 2025
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Convert 12557 feet to meters. Round your answer to three sig…

Convert 12557 feet to meters. Round your answer to three significant figures.

Published January 20, 2025
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The density of tungsten is 19.35 g/cm3. A sample of tungsten…

The density of tungsten is 19.35 g/cm3. A sample of tungsten is placed in a graduated cylinder containing 16.1 mL of water and the water level rises to 23.6 mL. What is the mass in grams of the sample of tungsten?

Published January 20, 2025
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Express the result of the following calculation in scientifi…

Express the result of the following calculation in scientific notation: 563000 cm2 x 0.69 cm

Published January 20, 2025
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Calculate the molar mass of calcium trichloroacetate, Ca (CC…

Calculate the molar mass of calcium trichloroacetate, Ca (CCl3CO2)2, in g/mol

Published January 20, 2025
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The mass of 450.5 mg equals

The mass of 450.5 mg equals

Published January 20, 2025
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Cathode ray  is a beam of 

Cathode ray  is a beam of 

Published January 20, 2025
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When a 32.55 gram sample of gold is placed in a graduated cy…

When a 32.55 gram sample of gold is placed in a graduated cylinder containing 4.20 mL of water, the water level rises to 7.30 mL. What is the density of gold in g/cm3? 

Published January 20, 2025
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