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s344n2d4d5 [400]
3 years ago
10

A control in an experiment

Chemistry
1 answer:
ser-zykov [4K]3 years ago
4 0
<h3>Changes with the independent variable...</h3>
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How does the Miller Urey experiment
Naily [24]

Answer:

no idea....... .............

5 0
3 years ago
In what way do the oceans and the forests perform a similar function in the carbon cycle, under normal conditions?.
ikadub [295]

Both take carbon dioxide out of the atmosphere.

The ocean absorbs much of the carbon dioxide released when fossil fuels are burned. This extra carbon dioxide lowers the ocean's pH through a process called ocean acidification. Both are important elements for all life on earth. Relationship between the water cycle and the carbon cycle. The sun's energy drives both the carbon cycle and the water cycle.

Recall that sunlight water and carbon dioxide combine in green plants via photosynthesis to produce carbohydrates. The ocean also regulates the Earth's climate. They determine the weather by telling temperatures and determining rainfall, droughts, and floods. It is also the world's largest carbon sink, with an estimated 83% of the global carbon cycle circulating in seawater.

Learn more about The carbon cycle here:-brainly.com/question/1194643

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8 0
1 year ago
Nitrate salts (NO3), when heated, can produce nitrites (NO2) plus oxygen (O2). A sample of potassium nitrate is heated, and the
Lostsunrise [7]

Answer: a) 0.070 moles of oxygen were produced.

b) New pressure due to the oxygen gas is 2.4 atm

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 2.7 atm

V = Volume of gas = 700 ml = 0.7 L

n = number of moles = ?

R = gas constant =0.0821Latm/Kmol

T =temperature = 329 K

n=\frac{PV}{RT}

n=\frac{2.7atm\times 0.7L}{0.0821 L atm/K mol\times 329K}=0.070moles

Thus 0.070 moles of oxygen were produced.

When the 700 mL flask cools to a temperature of 293K.

PV=nRT

P=\frac{nRT}{V}

P=\frac{0.070\times 0.0821\times 293}{0.7}

P=2.4atm

The new pressure due to the oxygen gas is 2.4 atm

7 0
4 years ago
The viewing of a solar eclipse involves a specific relationship between the earth, the sun, and the moon. Which of these represe
kirza4 [7]

Answer: B) sun - earth - moon

Explanation:

in the solar system you see them in this order as the sun is in the middle it comes first then earth and shortly after the moon.

7 0
4 years ago
What type of ion do elements from each of the following groups form ,<br> group1 <br> group 7.
Artemon [7]

Answer:

group 1 - cations charge +1

group 7 - anions  charge -1

Explanation:

Group 1 has one valence electron and will lose one electron to complete the octet.

Group 7 has 7 valence electrons and will accept an electron to complete the octet.

7 0
3 years ago
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