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vovangra [49]
4 years ago
15

Identify the variable that is manipulated in an experiment.

Chemistry
2 answers:
BARSIC [14]4 years ago
8 0

the answer is (#1) independent variable.

Blababa [14]4 years ago
7 0
Independent Variable
 i hope I've helped!
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By referring to particles, explain why the white ring formed in the glass tube
Leya [2.2K]

Answer:

Ammonia and Hydrogen Chloride.

Explanation:

Assuming this is what you're referring to, Ammonia (NH3) and Hydrogen Chloride(NCI3). The concentrated ammonia (NH3) is placed on a pad in one end of a tube and hydrochloric acid (NCI3) on a pad at the other. Shortly after the gases will begin diffusing far enough to meet, a ring of solid ammonium chloride (NH4Cl) will be formed.

7 0
3 years ago
Which of these best describes the role of plants in the carbon-oxygen cycle? A. to absorb carbon dioxide from the atmosphere and
IceJOKER [234]

Answer:

A. to absorb carbon dioxide from the atmosphere and use it to make sugar

Explanation:

Green plants with the help of their green coloring pigment called chlorophyll helps to absorb sunlight. This sunlight helps in the process Called photosynthesis in which plants manufacture food (sugar) using CO2(Carbon dioxide)and Water to give Oxygen and Sugar. The oxygen is released back into the atmosphere.

6 0
4 years ago
Read 2 more answers
What are centimeters,kilometers,and millimeters
Stells [14]
They are metric units of measurement.
4 0
3 years ago
While boiling potatoes for dinner in salted water, the pot boils over and you notice that the flame on your gas burner turns to
wel

Answer:

This observation can be explained under the following reasons:

  1. High sodium content
  2. Lowered heat temperature
  3. Organic burn

Explanation:

High sodium content from the potato fluid causes the flame to turn yellow, as indicative of the presence of sodium (flame test).

The colour change could also be attributed to the drastic lowering of the burner heat. Finally, pure organics like wood and fats burn red, a would be the case with fluids from the boiled potatoes.

I hope this explanation was helpful.

5 0
3 years ago
Calculate the mass of copper that could be made from 4.0g of copper oxide
Licemer1 [7]

The mass of copper that will be produced from copper oxide is determined as 3.19 g.

<h3>Mass of copper produced from copper oxide</h3>

The mass of copper that will be produced from copper oxide is calculated as follows;

2Cu + O₂  -----> 2CuO

2          1             2

2(63.5) ------------ 2(79.5)

x ---------------------- 4 g

x = (4 x 2 x 63.5)/(2 x 79.5)

x = 3.19 g

Thus, the mass of copper that will be produced from copper oxide is determined as 3.19 g.

Learn more about copper here: brainly.com/question/24856041

#SPJ1

7 0
2 years ago
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