Mass and Change
Quiz by Kristy Roberts
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17 questions
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- Q1Mass is...the amount of particles in an objectthe amount of space an object takes uphow closely packed together the particles areall of the answers are true30s
- Q2What is a precipitate?A 0.1M solutionAn insoluble substance that can form when two substances are mixed togetherA soluble substance that can form when two substances are mixed togetherCondensation that forms on a beaker30s
- Q3Does gas have mass?SometimesOnly when it is warmYesNo30s
- Q4In a perfect world, where no errors can occur, what should have happened with the mass of burning steel wool lab?The mass should have stayed the sameThe mass should have decreasedThe mass should have increased30s
- Q5When an object loses mass it is really losing ____________.precipitatevolumeparticlessize30s
- Q6In a perfect world, where no errors can occur, what should have happened with the mass of dissolved Alka-Seltzer lab?The mass should have increasedThe mass should have stayed the sameThe mass should have decreased30s
- Q7If you burned a piece of copper metal over a Bunsen burner what should happen with the mass of the copper metal and why?The mass should stay the same because nothing will happen to the copper, it will just get hotThe mass should increase because you are adding gas particlesThe mass should decrease because you are melting the copperThe mass should decrease because you are burning the copper30s
- Q8Which of the following labs should have the same results? (assume no errors occurred)Burning Steel Wool, Ice & Water, Dissolved Alka-SeltzerSteel Wool, Ice & Water, Precipitate, Dissolved Alka-SeltzerDissolved Sugar and Dissolved Alka-SeltzerSteel Wool, Ice & Water, Precipitate, Dissolved Sugar30s
- Q9The Law of Conservation of Mass states that...Mass can disappear and reappear at any given timeMass cannot be created or destroyedSolids and Liquids have mass but gas does notMass can be created but not destroyed30s
- Q10Two clear liquids were mixed in a beaker at 5C. The resulting mixture remained homogeneous. After a few seconds, bubbles began to form and float to the surface of the beaker. After several minutes, the entire solution equilateral to room temperature . After several hours, the volume of the solution decreased by several milliliters. Which indicates that a chemical change occurred?The solution reached room temperatureThe liquids remained homogeneous after being mixedThe volume of the solution decreased over timeThe solution released gas bubbles30s
- Q11Which of the following is NOT a physical property of helium?It is nontoxicIt almost always exists as a gasIt has extremely low reactivityIt will not form diatomic molecules30s
- Q12Which of the following is a physical property of rubbing alcohol?It releases heat during combustionIt is a clear liquidIt is mildly acidicIt is flammable30s
- Q13In a perfect world, where no errors can occur, what should have happened with the mass of steel wool lab?The mass should have increasedThe mass should have stayed the sameThe mass should have decreased30s
- Q14In a perfect world, where no errors can occur, what should have happened with the mass of ice and water lab?The mass should have decreasedThe mass should have increasedThe mass should have stayed the same30s
- Q15In a perfect world, where no errors can occur, what should have happened with the mass of precipitate lab?The mass should have stayed the sameThe mass should have decreasedThe mass should have increased30s