Identify which of these combinations of substances can be separated by filtration.Two liquidsTwo solidsA solid and a liquidA gas and a liquidI'm not sure
Question
Identify which of these combinations of substances can be separated by filtration.Two liquidsTwo solidsA solid and a liquidA gas and a liquidI'm not sure
Solution
A solid and a liquid can be separated by filtration. This is because filtration works by allowing a liquid to pass through a filter, leaving behind larger solid particles. The other combinations (two liquids, two solids, a gas and a liquid) cannot be separated by filtration. Two liquids would both pass through the filter, two solids would both be retained by the filter, and a gas and a liquid would both pass through the filter.
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1. Which of the following is NOT a state of matter?• a) Solid• b) Liquid• c) Heat• d) Gas2. What is another name for a homogeneous mixture?• a) Solution• b) Compound• c) Element• d) Particle3. Which of the following is a characteristic of a heterogeneous mixture?• a) Uniform composition• b) Different phases can be seen• c) Cannot be separated• d) Only made of liquids4. Which method is best for separating a mixture of alcohol and water?• a) Filtration• b) Distillation• c) Magnetism• d) Decanting5. Filtration is most suitable for separating which type of mixture?• a) Salt and water• b) Sand and water• c) Oil and water• d) Sugar and water6. Which SI unit is used for measuring mass?• a) Liter• b) Kelvin• c) Gram• d) Meter7. Which tool is typically used to measure the volume of a liquid?• a) Balance• b) Caliper• c) Thermometer• d) Graduated cylinder8. How many significant numbers are in the measurement 406.02?• a) 3• b) 4• c) 5• d) 69. Which of the following is a pure substance?• a) Air• b) Orange juice• c) Iron• d) Salad10.Which process involves the heating of a liquid to create vapor and thencooling that vapor to create a liquid?• a) Filtration• b) Chromatography• c) Distillation• d) Sedimentation11.What is the SI unit for temperature?• a) Celsius• b) Fahrenheit• c) Kelvin• d) Gram12.Which tool would be best for measuring the length of a small rodaccurately?• a) Meter stick• b) Caliper• c) Ruler• d) Graduated cylinder13.How many significant figures are in the number 0.003405?• a) 4• b) 6• c) 3• d) 514.Which of these is NOT a heterogeneous mixture?• a) A salad• b) A bowl of cereal with milk• c) Saltwater• d) Muddy water15.Elements and compounds are both examples of:• a) Mixtures• b) Heterogeneous mixtures• c) Homogeneous mixtures• d) Pure substances16.The SI unit for amount of substance is:• a) Kelvin• b) Mole• c) Gram• d) Liter17.Which method would be best for separating colored pigments in ink?• a) Distillation• b) Filtration• c) Chromatography• d) Decanting18.In which type of mixture are the components uniformly distributed?• a) Heterogeneous• b) Homogeneous19.Which of the following tools would NOT be suitable for measuringmass?• a) Triple beam balance• b) Graduated cylinder• c) Electronic balance• d) Spring scale20.The number 100.00 has how many significant figures?• a) 3• b) 5• c) 4• d) 2
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