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Leokris [45]
1 year ago
10

QUESTION 3 and 4 please

Chemistry
2 answers:
Katena32 [7]1 year ago
8 0

Answer:

The answer to question 3 should be C. Summarizing the results.
The answer to question 4 should be D. Comparing data from the experiment to the prediction of the hypothesis.

Explanation:

Rashid [163]1 year ago
5 0

Answer: For question 3 Your answer will be C

For question 4 your answer will be D

Explanation:

this is because this part of a scientific hypothesis and cycle.

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RoseWind [281]
The answer to that question is c
5 0
2 years ago
A chunk of copper has a volume of 1.45 mL and a mass of 12.93 grams. What is the density of the chunk of copper?
natta225 [31]

Answer:

Density = 8.92 \ g/mL

Explanation:

The equation for density is:

Density = \frac{mass}{volume}

We plug in the given values:

Density = \frac{12.93 \ g}{1.45 \ mL}

Density = 8.92 \ g/mL

7 0
2 years ago
Read 2 more answers
Question 3 (1 point)
Hoochie [10]

Answer:

50 mol

Explanation:

Mass of methane = 800 g

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

CH₄ + 2O₂      →      CO₂ + 2H₂O

Number of moles of methane:

Number of moles = mass/molar mass

Number of moles = 800 g/ 16 g/mol

Number of moles = 50 mol

Now we will compare the moles of methane and carbon dioxide from balanced chemical equation.

                CH₄        :         CO₂

                   1           :          1

                 50          :        50

4 0
3 years ago
Which statement about the greenhouse effect is NOT true?
Archy [21]
<span> Greenhouse gases were not historically present in the atmosphere.</span>
7 0
3 years ago
Ignoring sign which transition is associated with the greatest energy change?
scoray [572]
Well u said ignoring not me

3 0
3 years ago
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