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Chemistry Quiz 12 (25 MCQs)

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1. When 2.02 X 1023 is multiplied by 3.1 X 10-31, the product is
2. The metal used to recover copper from a solution of copper sulphate is?
3. Avogadro's number is defined as the number of particles in
4. Moving down on the periodic table increases the number of _____
5. Which is the correct form of writing the chemical formula for Ferous sulfate or Iron (II) sulfate?
6. A subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge
7. Protons + _____ = atomic mass
8. _____ bonding is when 2 atoms share a pair of electrons. When an atom gives away or takes an extra electron, it has an overall negative of positive charge and is called an _____
9. A pure substance that is made up of only one kind of atom
10. The hardest form of carbon is
11. The substance getting dissolved
12. Which type of reaction is:8 Ag2S $\rightarrow$ 8 S + 16 Ag
13. T shell of an atom can hold maximum of
14. The function of this carbohydrates is a storage form for excess glucose in the liver and skeletal muscles
15. What type of particle is:Ag
16. The material which can be deformed permanently by heat and pressure is called a
17. A measure of how difficult it is to break the surface of a liquid because of hydrogen bonds
18. The inexpensive and commonly used variety of glass is called soda glass. It is called so because
19. A large, folded chain of amino acids.
20. Iron reacts with oxygen to form iron oxide (rust). Which of the following is the correct word equation?
21. What is an electron?
22. What type of bond is formed when a positive ion and negative ion stick together?
23. A substance that contains different compounds and/or element
24. A sample of bismuth has a mass of 343 g and a volume of 35.0 cm3.What is the density of bismuth?
25. What is a control used for in an experiment?
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