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meriva
2 years ago
13

Which of the following is true of science? (2 points)

Chemistry
1 answer:
Tju [1.3M]2 years ago
7 0

Answer:

It is based on testable and replicable evidence.

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Ratling [72]

Answer:

1. c) shiny

2) True. Reactivity is a chemical property.

6 0
3 years ago
Read 2 more answers
PLEASE HELP BRAINLIEST AND 15 points.
PtichkaEL [24]

Answer:

Substance B, boiling point of 105 °C

Explanation:

Non volatile substances have high boiling points

5 0
2 years ago
8. If I have 34 grams of FeO, how many grams of Oxygen were synthesized?<br>Fe + O2 → Feo​
krek1111 [17]

Answer:

34 gram of FeO produced 8 gram of oxygen.

Explanation:

Given data:

Mass of FeO = 34 g

Mass of oxygen = ?

Solution;

Chemical equation:

2FeO → 2Fe + O₂

Number of moles of FeO:

Number of moles = mass/ molar mass

Number of moles = 34 g /71.8 g/mol

Number of moles = 0.5 mol

Now we will compare the moles of FeO with oxygen:

             FeO       :       O₂

                2         :        1

                0.5      :      1/2 × 0.5 = 0.25

Mass of oxygen:

Mass = number of moles × molar mass

Mass =  0.25 mol × 32 g/mol

Mass = 8 g

So 34 gram of FeO produced 8 gram of oxygen.

8 0
3 years ago
Why is it NOT possible for ONE particle (atom/ion/molecule) to be classified as a particular phase, or state, of matter?
Agata [3.3K]

Answer:

because I said and I'm the boss

6 0
2 years ago
Joanne wants to study the chemical properties of a substance. Which of the following is an example of a chemical property?
Eddi Din [679]

Answer:

observe if it reacts with acids

Explanation:

Because whether it reacts is determined by its chemical properties

4 0
2 years ago
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