What is the percent abundance (in units of percent) of zinc in a sample whose density is 7.639 g/mL and the only other component is copper? The density for pure copper is 8.96 g/cm³ and the density of pure zinc is 7.13 g/cm³. Report your answer to one decimal place. NOTE: This

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A chemist adds 360.0 mL of a 4.0 × 10M silver(II) oxide (AgO) solution to a reaction flask. Calculate the mass in milligrams of silver(II) oxide the chemist has added to the flask. Round your answer to 2 significant digits. 0 mg ☐x x10 × Ś

Some people like to make their own hand lotion because it can be less expensive than buying it and they have the ability to add only the fragrances that they like. A recipe for hand lotion calls for mixing 253 g of water (H₂O) with 264 g of glycerin (C3H8O3). This recipe makes a total of 685 mL of hand lotion. Incorrect. What is the mass percent of glycerin in the hand lotion? i ! % Hint The mass percent is the concentration of the solution as the percent of solute in a given mass of solution. Assistance Used

Using any data you can find in the ALEKS Data resource, calculate the equilibrium constant K at 25.0 °C for the following reaction. + 4 HCl (g) TiCl (g) + 2 H₂O(g) ― TiO2(s) Round your answer to 2 significant digits. K = ☐ ☐ ☑

PART A: an unknown mineral sample has a mass of 23.4 grams and a volume of 3 cm^3. According to the mineral density chart, what mineral is this?  copper iron galena halite PART B:  An unknown mineral sample has a mass of 235.32 grams and a volume of 88.8 cm^3. According to the mineral density chart, what mineral is this?  galena copper aluminum quartz

A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the density of the wine is 0.982 mg/mL, how much alcohol was consumed? 09.6 x 103 g alcohol O 301 g alcohol O 94 g alcohol O 106 g alcohol O 13.3 g alcohol

Even though cement and bread are not substances, they can help you to understand these concepts: Whatever you do to volume affects mass the same way. Whatever you do to mass affects volume the same way. If you have half as much of a material, you would expect the volume of the material to also be half as much. If you have twice as much of the material, you would expect its volume to also be twice as much. Substances, which you know are always the same throughout, will follow this rule. This relationship between mass and volume will stay the same for any substance, no matter how much of that substance you can sample and measure in the classroom. Why is this principle about the relationship between mass and volume always true of substances, but not always true of mixtures?

The speed of light in a vacuum is 2.998 x 108 m/s. What is its speed in kilometers per hour (km/h)? speed = km/h What is its speed in miles per minute (mi/min)? speed = mi/min Search or type URL & 6 7 8. R T Y P н K

EV = 2.8 g/cm3 TV = 2.702 g/cm3