Fundamental Science 1st Quarter Benchmark (part 2): Question Preview (ID: 21743)

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Substance made of one kind of atom.
a) Molecule b) Substance c) Compound d) Element
Which atomic model is the most recent?
a) Einstein b) Electron Cloud c) Rutherford d) Bohr
The smallest particle of a specific substance formed from the bonding of two or more atoms.
a) Atom b) Mixture c) Element d) Molecule
Anything that has mass and takes up space
a) Solid b) Liquid c) Gas d) Matter
Accuracy is judged by:
a) How close a measurement is to the actual value. b) The precision of the tool used for measurement c) How close a measurement is to the other trial measurements d) How big the number is in the answer
25) How many Significant Figures are in the number 2908 ?
a) 1 b) 2 c) 3 d) 4
Express .000304 in scientific notation
a) 30.4 x 10 -5th power b) 3.04 x 10 4th power c) 304 x 10 6th power d) 3.04 x 10 -4th power
How many significant figures are in the number 0.0650?
a) 2 b) 3 c) 4 d) 5
How many significant figures are in the number 360,000
a) 2 b) 3 c) 4 d) 6
How many significant figures are in 5600900 ?
a) 3 b) 5 c) 7 d) none of the above
Express 4.5 x 10 -3rd pwer in standard form.
a) 4500 b) 45,000 c) 0.00045 d) 0.0045
Express 2602 in scientific notation
a) 26.02 x 10 2nd power b) 2.602 x 10 3rd power c) 2.602 x 10 -3rd power d) 26.02 x 10 -2nd power
Which of the following is equal to 5,800,000,000?
a) 5.8 x 10 8th power b) 58. x 10 8th power c) 5.8 x 10 9th power d) 5.8 x 10 -9th power
How many total Fe atoms are in the substance 3 Fe2O3?
a) 2 b) 3 c) 6 d) 9
How many total H atoms are in the substance C4H9OH?
a) 1 b) 9 c) 10 d) 15
Which is the chemical formula for: 2 molecules containing 1 Carbon, 3 Oxygen, and 2 Hydrogen?
a) 2 C3O2H b) CO3H22 c) C2O6H4 d) 2 CO3H2
A pure substance has to be either...
a) Element or compound b) Heterogeneous or homogeneous c) Mixture or compound d) Liquid or Gas
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