
8th Grade Fall Final Science
Quiz by 7-12 Sped
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29 questions
Show answers
- Q1Which of the following is true of the mass of an atom?an atom's mass is equal to the atomic numberan atom's mass is a combination of the mass of neutrons and electronsan atom's mass is a combination of the mass of protons and neutrons30s
- Q2How many neutrons are found in a neutral atom of selenium?79453430s
- Q3Which of the following is considered a chemical property?flammabilitymelting temperaturecolor30s
- Q4What is the mass number of osmium?7611419030s
- Q5What is the atomic number of Hafnium?7225010630s
- Q6Which of the following statements mentions a chemical property?I really hope the sun comes out soon to melt all of the ice on the ground.I really like that shade of blue.I shouldn't store sodium hydroxide near acids because it could violently react.30s
- Q7Which of the following best represents the difference between mass and weight?mass is the amount of a substance in a given volumemass is the amount of matter in a substance whereas weight is the force of gravity on massmass is the amount of volume in a given amount of a substance30s
- Q8Which of the following represents a molecule?sugarelectroniron30s
- Q9What is the density of a substance if it has a mass of 16.23 g and a volume of 23.86 mL?0.680 g/mL1.47 g/mL40.1 g/mL30s
- Q10Which subatomic particle is found outside of the nucleus of the atom?electronneutronargon30s
- Q11How many protons are there in an atom of Radon?3081368630s
- Q12What is the mass of quartz if it has a density of 2.65 g/cm3 and a volume of 129.4 cm3?0.0205 g342.91 g132.05 g30s
- Q13Which of the following is considered a compound?waterheliumoxygen30s
- Q14Which of the following could be considered a physical property?colortoxicityreactivity to acids30s
- Q15How many neutrons are found in a neutral atom of gold?7919711830s