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11111nata11111 [884]
3 years ago
7

Helpl asap nowwww bc i dont understand

Chemistry
1 answer:
dimaraw [331]3 years ago
6 0

Answer: kinetic energy

Explanation: kenitic energey is answer1 Awnser2 potentialand 3 is friction

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What is theWhat is the approximate tilt of the earth's axis? approximate tilt of the earth's axis?
Vedmedyk [2.9K]

Earth's axis is tilted 23.5 degrees from the plane of its orbit around the sun.


But this tilt changes. During a cycle that averages about 40,000 years, the tilt of the axis varies between 22.1 and 24.5 degrees.

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What is the coefficient of diphosphorus trioxide? (p2o3)
denis-greek [22]
The cofficent is 2 for diphosphorus trioxide
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Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. When 3.97 g of magnesium ribbon bu
taurus [48]

Answer:

The balanced chemical equation is given as:

2Mg(s)+O_2(g)\rightarrow 2MgO(s)

Explanation:

When magnesium metal burns in presence of oxygen it gives white color powdered compound called magnesium oxide.

The balanced chemical equation is given as:

2Mg(s)+O_2(g)\rightarrow 2MgO(s)

According to reaction, 2 moles of magnesium metal when reacts with 1 mole of oxygen gas it gives 2 moles of  solid magnesium oxide.

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3 years ago
Whats is a chemical change of a paper bag
DanielleElmas [232]
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3 0
3 years ago
Read 2 more answers
a helium balloon has a volume of 2.95 liters at 25 c. the volume of the ballon decreased to 2.25 l after it is placed outside on
OleMash [197]

Answer:

The outside temperature is -45.8°C

Explanation:

When a gas keeps on constant its moles and its pressure, we can assume that volume will be increased or decreased as the T° (absolute T° in K).

V1 / T1 = V2 / T2

2.95L/298K = 2.25L / T2

(2.95L/298K ) . T2 = 2.25L

T2 = 2.25L . 298K / 2.95L

T2 = 227.2K

T°K - 273 = T°C

227.2K - 273 = -45.8°C

3 0
3 years ago
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