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juin [17]
3 years ago
10

During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is like

ly occurring
Chemistry
1 answer:
My name is Ann [436]3 years ago
8 0

A. A solid forms, and there is a change of color.

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How many double bonds does CCL2H2 have?
galben [10]
None. Both chlorines and both hydrogens are single-bonded to the central carbon atom; the molecule is comprised of four single bonds and no double bonds.

Hope this helps!
4 0
2 years ago
How many moles of oxygen are required to produce 37.15 g CO2? 37.15 g CO2 = mol O2
NNADVOKAT [17]

Answer:

0.84 moles of oxygen are required.

Explanation:

Given data:

Mass of CO₂ produced = 37.15 g

Number of moles of oxygen = ?

Solution:

Chemical equation:

C + O₂     →     CO₂

Number of moles of  CO₂:

Number of moles = mass/molar mass

Number of moles = 37.15 g/ 44 g/mol

Number of moles = 0.84 mol

Now we will compare the moles of oxygen and carbon dioxide.

                          CO₂         :       O₂  

                              1           :         1

                            0.84       :       0.84

0.84 moles of oxygen are required.

6 0
3 years ago
Read 2 more answers
a population of cacti in the Sonoran desert all need to get water what type of dispersion will they most likely show A. they wil
Yuri [45]

Answer:

Your answer is A. They will show even dispersion to get water.

Explanation:

3 0
3 years ago
Read 2 more answers
The statement that percent yield can never be greater than theoretical yield is another example of the ________.
Gnom [1K]
We can rephrase the statement with a little more specificity in order to understand the answer here.

The mass of the products can never be more than the The mass that is expected.
3 0
3 years ago
Which part of the blood is correctly paired with its function
iogann1982 [59]
Red blood cells is correct
6 0
3 years ago
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