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Chemistry Quiz 29 (25 MCQs)

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1. The Molecular mass of CaCl2 is,
2. Matter that cannot be broken down into a simpler substance-building blocks of life.
3. Sulphur shows valencies
4. Atoms are the basic units of _____
5. An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
6. The _____ of an atom/molecule is the amount of energy released when an electron is transferred to a neutral atom (in gaseous state) and forms a negative charged ion.
7. All of the following are general characteristics of a substance in the liquid state except
8. Nitrogen, phosphorous and potassium are.
9. _____ is a process that could be used to separate dissolved particles from the liquid in a solution
10. When a gas is compressed, what happens to its volume?
11. Which gas makes about 23 percent by weight and 21 percent by volume of the atmosphere?
12. The main types of chemical bonds are:
13. Whenclassifying a solution of KoolAid, sugar, and water, a student found it to bewhich of the following?
14. Molarity is _____
15. A substance made up of atoms of two or more different elements joined by chemical bonds
16. A student pours two different solutions into a glass beaker. Which of the following would indicate that a chemical reaction took place between two solutions?
17. What is the unit used to measure ozone in the atmosphere?
18. The composition of the Sun can determined by analyzing its spectrum. The spectrum of the Sun is.
19. Which type of bond uses the transfer of electrons?
20. The name of C4H10 compound is
21. What shows bonding between atoms of a molecule?
22. _____ discovered carbon.
23. Which one is not a Chemistry career?
24. Ashton noticed that Cu, Zn, and Ga are in the same horizontal row in the periodic table. What did she correctly conclude about these elements?
25. What would be the products of hydrolysis of a fat?
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