Unit Test 1 Review- Matter And Chemistry Part II: Question Preview (ID: 10343)


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Identify the Chemical Equation that is balanced
a) 2H2+O2 Yields 2H2O b) Na +Cl2 Yields 2NaCl c) 2N2 +H2 Yields 4NH3 d) Fe + O2 Yields 4Fe2O3
Which property of an element allows for it to be stretched into wire?
a) Ductility b) Malleability c) Conductivity d) Reactivity
a mixing of two chemicals resulting in a change in temperature is:
a) a physical change because of the change in temperature b) a chemical change because of the change in temperature c) a physical change because of the mixing of the chemicals d) a chemical change because of the mixing of the chemicals
How is a substance best classified if its atoms are arranged in a particular way?
a) element b) compound c) mixture d) gas
Using the periodic table, how would one identify the atomic number of an element?
a) by looking above its chemical symbol b) by looking below its chemical symbol c) by looking at is period d) by identifying its periodic group
How would one find the atomic mass of an element?
a) subtracting the electrons from the protons b) adding the electrons and the protons c) adding the protons and the neutrons d) subtracting the neutrons from the protons
Where on the periodic table would one look to find the Metalloids?
a) the far left side b) the far right side c) along the zigzag line d) Periodic Group 7
Which of the following explains why I have to replace the lock on the door to my building?
a) It is malleable b) it is ductile c) it is an excellent conductor of electricity d) it suffers from corrosion
What is the name giving to the elements in group 17 of the periodic table?
a) halogens b) noble gases c) actinides d) transition metals
Which group of elements is useful in the making of glowing electric lights
a) halogens b) noble gases c) metalloids d) alkali Earth metals
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