A mixture is a combination of pure substances, physically combined. Good examples of a solid mixture would be a salad or a bowl mix. Solutions are mixtures too. A spoon full of sugar dissolved in water is an example of both a mixture and a solution. Because m are physical combinations, they are easily separated. Here is a list of mixtures. Match the best method to separate the parts of each mixture. ITEM BANK: Move to Right Gravel and rocks Sand and gravel Sand and wood shavings Boil the water. Collect the solid. Sugar water Dissolve salt in water. Pour through filter paper and collect the sand. Sand and salt Remove iron filings with magnet. Sand and iron filings diag and drop answer here Use a screen to sift and separate the big pieces from smaller pieces. dreg and drop answei here Pick out the bigger particles. Add water and float one type of particle.

A mixture is a combination of pure substances, physically combined. Good examples of a solid mixture would be a salad or a bowl mix. Solutions are mixtures too. A spoon full of sugar dissolved in water is an example of both a mixture and a solution. Because m are physical combinations, they are easily separated. Here is a list of mixtures. Match the best method to separate the parts of each mixture. ITEM BANK: Move to Right Gravel and rocks Sand and gravel Sand and wood shavings Boil the water. Collect the solid. Sugar water Dissolve salt in water. Pour through filter paper and collect the sand. Sand and salt Remove iron filings with magnet. Sand and iron filings diag and drop answer here Use a screen to sift and separate the big pieces from smaller pieces. dreg and drop answei here Pick out the bigger particles. Add water and float one type of particle.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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?
A chemist makes 260. mL of iron(III) bromide (FeBr,) working solution by adding distilled water to 160. mL of a 1.88 mol stock solution of iron(III) bromide in water. Calculate the concentration the chemist's working solution. Be sure your answer has the correct number of significant digits. mol x10 L
Be sure the answer has the correct number of significant digits.
What is the percent by mass NaCl of a solution that contains 85.7 grams of NaCl and 104.1 grams of water? Round your answer to 1 decimal.
A chemist adds 305.0 mL of a 0.41 M barium chloride (BaCl₂) solution to a reaction flask. Calculate the millimoles of barium chloride the chemist has added to the flask. Round your answer to 2 significant digits. 1.25 x 10 mmol [NN] X 5 ? Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility Ad DII F11 F12 F10 FO FB F7 esc ! 1 Explanation 2 Check 39: F2 14/ # 3 80 F3 $ 4 000 F4 R % 5 ܐ FS T ^ 6 F6 Y & 7 U * 00 8 ہ ۔ 9 ) 0 0 P + 11 T D olo Ar
Suppose you were to mix water, cork, iron filings, and pebbles. Describe how and what you would use to separate the five parts of the mixture from each other.
An acid is dissolved in another acid. Acid i has a specific gravity of 2.46 and a mass of 50 grams. Acid 2 is 50 mL What is the percentage by volume of the solute if Acid i is the solute in the solution? Assume the density of water to be i gram per ml. O 71.0983 O 40.6504 O 100.0000 O 28.9017
Jacquel Adding or subtracting and multiplying or dividing measurements A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 4.200 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 71.0 g. • She added water to the graduated cylinder and dissolved the potassium chloride completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 133.0 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits. Ch 8 mL Explanation Check O2021 McGraw-Hill Education All Rights Reserved…
Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you the substance is a pure substance or a mixture, if you can. . Sample A is 100. g of a coarse grey powder with a faint unpleasant smell. 15. g of the powder is put into a funnel lined with a sheet of thick paper. Distilled water is poured slowly over the powder. All of the powder disappears, and the water under the funnel turns a deep purple. . Sample B is 100. mL of a clear liquid. The density of the liquid is measured, and turns out to be 0.77 g/mL. The liquid is then cooled in the refrigerator At 10.0 °C crystals begin to appear. The temperature of the liquid continues to decrease as more crystals form, until at 6.2 °C the liquid is entirely solid. Is sample A made from a pure substance or a mixture? If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." Is sample B made from a pure substance or a…
Determine the mass of the product from the following data. Mass Aluminum Foil (g) 2.5415 Mass Filter Paper (g) 0.2777 Mass Filter Paper + Product (g) 35.6484 Mass Product (g) Group of answer choices 35.3708 g 35.3705 g 35.3707 g 35.3709 g 35.3706 g
67. Pure bromobenzene, C H Br, boils at 156.0°C and has a boiling point constant of 6.26°C/m. A sample of bromo benzene is contaminated by anthracene, C4H10. The boiling point of the impure sample is 159.2°C. How pure is the sample? (Express your answer as mass percent bromobenzene.) I've spent forever trying to figure this out. For now my answer is 6.56%, but it doesn't seem right. Before, I got 97.9%. are either of those correct?
D. Give the methods that can be used to separate the components of the mixture. Write the methods in their proper order. 1. Salt, water, and iron fillings 2. Sand, water and oil