16 The best example of an element is – F oil G ice H water J oxygen 17 Which of the following chemical symbols best represents an element? A He B LiF с но D NaCI 18 Which of these data tables correctly classifies the given substances? F Substance Classification H Substance Classification NaCI compound NaCI element Si element Si element H,0 compound H,O compound G Substance Classification Substance Classification NaCI element NaCI compound Si element Si compound H,O element compound

The Scientific Method Group of answer choices isn't used much in modern chemistry. is a strict set of rules and procedures that lead to inarguable fact is based on continued observation and experiment is just a theory

Identify the state or states of matter present at each stage of the graph and  What is the boiling point of the substance and also where is the  substance melting?

S S In France the price of gasoline averages around $ 1.04 per liter. Using unit analysis, calculate the cost of gasoline in France in dollars per gallon. Use one of the following to set up the conversion factor. 454 g = 1 lb = 16 oz 1 m = 39.4 in = 3.28 feet Visited $ 1.04 1 L 2.54 cm = 1 in 1 km = 0.621 miles 1 L=1.06 qt 3.79 L 1 gal (number) (number) Submit Answer (unit) (unit) Try Another Version 11 $ /gallon 1 item attempt remaining

The ionic radius of a sodium ion is 2.27 angstroms (Å) . What is this length in um х STARTING AMOUNT *( ) 104 1010 10-8 10-4 108 106 0.0227 10-6 2.27 2.27 x 10-8 2.27 x 10-4 2.27 x 10-10 10 10 um cm m

arch E C $ 4 101 R F V 15 % Convert 3.19 × 10-5 5 ADD FACTOR * ( ) 319 3.19 x 104 3.19 x 10-12 3.19 x 10-14 0.0319 T 0.01 G O 16 40 6 Y 10 0.001 H & 7 m to nanometers Use only the metric system. BN U 10-⁰ J [+ 8 M 1000 # fo 3.19 10⁰ 144 ( O 9 ANSWER 3.19 x 10- 10⁰ fo JI K 3.19 x 10" O ▶11 ) O L 3.19 x 10⁰ f11 PI P : 31.9 ; RESET 10⁰ S 112 { ? + [ 44 0.1 = 1 $ 1 ins prt sc } ← backspace ] delete ( pause home. num lock enter T shi