The release of a gas from a chemical reaction is very quick. A scientist wants to measure what is released, but in small increme
2 answers:
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Answer: 17 (a) 360,000 ms 18 (a) 0.245 s
(b) 4.800 kg (b) 500 cm
(c) 560.0 dm (c) 68.00 m
(d) 72,000 mg (d) 0.025 Mg
<u>Explanation:</u>
Use the following table. Note the direction you are going to:
Right means move decimal to the right. Left means move decimal to the left.
**********************************************************************************************
17(a) 360 s to ms o → → →o
Move the decimal 3 places to the right --> 360_ _ _.
Fill in the blanks with zeroes --> 360,000
(b) 4800 g to kg o← ← ← o
Move the decimal 3 places to the left --> 4.<u>8</u> <u>0</u> <u>0</u>
<u />
(c) 5600 dm to m o← o
Move the decimal 1 place to the left --> 560. <u>0</u>
<u />
(d) 72 g to mg o → → →o
Move the decimal 3 places to the right --> 72 _ _ _.
Fill in the blanks with zeroes --> 72,000
***********************************************************************************************
18 (a) 245 ms to s o← ← ← o
Move the decimal 3 places to the left --> . <u>2</u> <u>4</u> <u>5</u>
(b) 5 m to cm o → →o
Move the decimal 2 places to the right --> 5 _ _.
Fill in the blanks with zeroes --> 500
(c) 6800 cm to m o← ← o
Move the decimal 2 places to the left --> 68. <u>0</u> <u>0 </u>
<u />
(d) 25 kg to Mg o← ← ← o
Move the decimal 3 places to the left --> . _ 25
Fill in the blanks with zeroes --> .025