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HACTEHA [7]
2 years ago
13

Science pls helppp?!

Chemistry
2 answers:
hichkok12 [17]2 years ago
6 0

Answer:

2nd one down

Explanation: distance divided by time interval

ch4aika [34]2 years ago
3 0
Your doing great keep up the good work
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When lights hits an object, the light either get absorbed, reflected or refracted
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How are all atoms of silver alike, but different from atoms of other elements?
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B. All atoms of silver have the same atomic number but different numbers of neutrons in the nucleus.

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After substantial heating, 6.25 g of iron produced 18.00 g of a compound with chlorine. The empirical formula is:
babunello [35]

Answer:

Option A. FeCl3

Explanation:

The following data were obtained from the question:

Mass of iron (Fe) = 6.25g

Mass of the compound formed = 18g

From the question, we were told that the compound formed contains chlorine. Therefore the mass of chlorine is obtained as follow

Mass of chlorine (Cl) = Mass of compound formed – Mass of iron.

Mass of chlorine (Cl) = 18 – 6.25

Mass of chlorine (Cl) = 11.75g

The compound therefore contains:

Iron (Fe) = 6.25g

Chlorine (Cl) = 11.75g

The empirical formula for the compound can be obtained by doing the following:

Step 1:

Divide by their molar mass

Fe = 6.25/56 = 0.112

Cl = 11.75/35.5 = 0.331

Step 2:

Divide by the smallest

Fe = 0.112/0.112 = 1

Cl = 0.331/0.112 = 3

The empirical formula for the compound is FeCl3

3 0
3 years ago
Why is the enzyme pectinase added during the manufacture of fruit juices?
MariettaO [177]
The choices can be found elsewhere and as follows:

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Answer:

1.0809

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