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Hoochie [10]
3 years ago
14

Why does a planet stay in orbit?

Chemistry
2 answers:
I am Lyosha [343]3 years ago
6 0

Answer:

Gravity

Explanation:

A planet is gravitationally pulled around the sun.

Olenka [21]3 years ago
5 0

Answer:

beause of gravitys pull and because the atmosphere of the beyond lol also bcs this i hope this helps your welcome boo >3

Explanation:

Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

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A solution is saturated in CO2 gas and KNO3 at room temperature. What happens when the solution is warmed to 75°C?
nignag [31]

Answer:

gaseous CO2 bubbles out of the solution

Explanation:

We already know that the dissolution of a gas in water is exothermic. Hence, when the temperature of a solution containing a gas is increased, the solubility of the gas decreases and the gas bubbles out of the solution.

Similarly, the dissolution of KNO3 in water is endothermic. This implies that the solubility of the solid increases with increasing temperature.

Thus the solid becomes more soluble at 75°.

6 0
3 years ago
How many moles are in 7.00E24 atoms of Ca?
iris [78.8K]

Explanation:

In chemistry, a mole is the base unit of the amount of substance in a system containing elementary entities (atoms, molecules, ions, electrons), and one mole of substance corresponds to the Avogadro's constant or 6.023 \ \times \ 10^{23}  entities. The stoichiometry equation that relates the amount of substance into the measurement in moles is

                                                           n \ = \ \displaystyle\frac{\alpha}{N_{A}},

where n is the number of moles, \alpha is the amount of substance and N_{A} is the Avogadro's constant.

Therefore,

                                           n \ = \ \displaystyle\frac{7.00 \ \times \ 10^{24} \ \text{atoms}}{6.023 \ \times \ 10^{23} \ \text{atoms mol}^{-1}} \\ \\ n \ = \ 11.624 \ \text{mol}.

3 0
3 years ago
Explain how evidence of a glacier appearing in India supports continental drift.
liraira [26]
Glacial striations show the direction a glacier is moving, and it suggests that the glacier flowed from a single location.
7 0
1 year ago
In an experiment, 26.5 g of metal was heated to 98.0°c and then quickly transferred to 150.0 g of water in a calorimeter. the in
allsm [11]
This is a common laboratory experiment called calorimetry which determines the specific heat capacity of the sample metal. 

By the Conservation of Energy,

Energy of Metal = Energy of Water
mCmetalΔT = mCwaterΔT, wherein Cwater = 4.187 J/g·°C
(26.5 g)(Cmetal)(98 - 32.5°C) = (150 g)(4.187 J/g·°C)(32.5 - 20°C)
Solving for Cmetal,
<em>Cmetal = 4.523 J/g·°C</em>
4 0
3 years ago
Which of these is a pure substance?
Flura [38]
Ocean water ..........................................................
5 0
3 years ago
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