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MrRissso [65]
3 years ago
13

A ball is rolled at a velocity of 3 m/s and rolls for 5 seconds. How far does the ball roll? *

Chemistry
1 answer:
MrRa [10]3 years ago
6 0

Answer 15m

Explanation: Distance =  Speed x Time

3 x 5 =15

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The following equation is one way to prepare oxygen in a lab. 2KClO3 → 2KCl + 3O2 Molar mass Info: MM O2 = 32 g/mol MM KCl = 74
Alex73 [517]
From  the  equation  above   the  reacting   ratio  of  KClO3   to  O2  is  2:3 therefore  the  number  of  moles  of  oxygen  produced  is  ( 4 x3)/2 =  6 moles  since   four  moles  of  KClO3  was  consumed
mass=relative  formula mass  x  number  of  moles
That  is   32g/mol x 6  moles  =192grams


8 0
3 years ago
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Lisa is using a spring scale to measure the weight of a wooden block. She weighs the wooden block a total of five times with the
Alchen [17]

Answer:

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3 0
3 years ago
When the valves are opened and the gases are allowed to mix at a constant temperature, what is the distribution of atoms in each
jek_recluse [69]

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Equal number of atoms of each gas in each container

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3 years ago
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3 0
3 years ago
Which three groups of the periodic table contain the most elements classified as metalloids (semimetals)?
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The metalloids are mostly concentrated in groups 14, 15, and 16. (Some simpler charts will show them as 4A, 5A, and 6A - take a look at the top of the periodic table your class uses to double-check).

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3 years ago
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