The___of an object is found by dividing the mass by the volume. weight density s
ID: 1006685 • Letter: T
Question
The___of an object is found by dividing the mass by the volume. weight density speed atomic number The metric base unit for volume is___. Kelvin meter Liter gram Oxygen, chlorine, and nitrogen are three of the seven___molecules. diatomic monatomic ionic covalent Elements are made up of only one kind of___. molecule mixture atom ion When two atoms combine chemically,___will either be shared or transferred. alloy protons neutrons electrons Chadwick discovered the___. proton neutron electron atom Scientist J.J. Thomson proposed that cathode rays are made of___charged particles. neutrally positively negatively balancedExplanation / Answer
14. The density of an object can be found by dividing mass by the volume. Density is mass per unit volume. Its units are g/cc. Answer is B.
15. The metric base unit of volume is liter. These are the SI units. It is also CGS and MKS unit. 1 Liter = 1000 cc. Answer is C.
16. Oxygen, chlorine and nitrogen are three of the seven diatomic molecules. Diatomic means 2 atoms together. These exist as O2, Cl2 and N2. Answer is A.
17. Elements are made up of only one kind of atoms. Molecules are made up of same or different elements. Answer is C.
18. When two elements combine chemically, the electrons are shared or transferred. If the bond is covalent between elements, the electrons are shared and if the bond is ionic, the electrons are transferred. Answer is D.
19. Chadwick discovered Neutrons. He used alpha rays to discover neutral atomic particle with mass close to proton. Answer is B.
20. Scientist J.J. Thomson proposed that cathode rays are made of positively charged particles. He studied canal rays and found that they are associated with protons, which are positively charged. Answer is B.
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