Answer:
- The structural formula for Freon-12 (CCl2F2)
F
|
Cl - C - Cl
|
F
It has the same structure as methane (CH4) with Hydrogen atoms replaced by Chlorine and Fluorine
- Freon-12 and Freon-14 belong halocarbons, a compound in which the Hydrogen of a hydrocarbon is replaced by halogens, like Chlorine and Fluorine.
ANSWER ; The moles of solute particles in the solution
B. marble
C. copper
D. steel
Answer: Option (B) is the correct answer.
Explanation:
Marble is also known as calcium carbonate and its chemical formula is .
When it combines with vinegar then it results in the formation of calcium acetate which is a water soluble compound along with the release of carbon dioxide which occurs in the form of bubbles and water.
The reaction is as follows.
Whereas vinegar being a weak acid will not react with glass, copper and steel.
Answer: B
Explanation: I got it right on my test
Brainliest?
b. depression
c. higher energy levels
d. reduced quality of life
Physical activity and exercise typically lead to higher energy levels and the correct option is option C.
Engaging in regular physical activity stimulates various physiological responses in the body, including increased blood flow and oxygen delivery to the muscles, improved metabolism, and release of endorphins, which are natural mood-enhancing chemicals. These effects contribute to a boost in energy levels and feelings of alertness.
Additionally, exercise can improve overall fitness and stamina, allowing individuals to perform daily activities with less fatigue. Regular physical activity is also associated with improved sleep quality, which further enhances energy levels during waking hours.
Thus, the ideal selection is option C.
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B The moon's gravity pulls on the Earth's ocean.
C Earth's gravity keeps the moon close to it.
D Earth's gravity keeps all the planets spinning around the sun.
Considering the gravity, The statement D is not correct: Earth's gravity does not keep all the planets spinning around the sun, Sun's gravity does it.
All objects in the universe have a mutual attraction. This attraction is known as gravity. So, the movement of the planets around the Sun is fundamentally due to the force of gravity. Each one has its own orbit and characteristics, but in all cases this is determined by the law of gravitation, which says that the force with which gravity affects bodies depends on two things: the mass of the objects and the distance between them. the objects. As the mass of an object increases, the attraction increases. If the distance between the objects increases, the attraction decreases.
In summary, the Sun keeps the planets spinning thanks to the force of gravity. The planets move around the Sun following paths in the form of an ellipse and each one rotates at a speed that depends on its distance from the Sun: the farther they are from the Sun, the slower they spin.
The statement D is not correct: Earth's gravity does not keep all the planets spinning around the sun, Sun's gravity does it.
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Answer: it’s
Earth gravity keeps all the planets spinning around the sun.
Explanation:
Got it right