Answer: <em> </em>I am not sure about the answer, but I can help explain the difference.
Explanation:
The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. <u><em>The early heliocentric models consider the sun as the center, and the planets revolve around the sun.</em></u>
They have a low boiling point because of weak intermolecular forces. They
Explanation:
Covalent compounds are compounds that are known to have weak intermolecular forces and hence low boiling point.
Covalent bonds are bond formed between two or more atoms having zero or very small electronegativity difference. Such bonds exists between molecules of non-metals.
Here are some properties of covalent bonds;
- They are gases or volatile liquids or low melting point solids
- Most of them are insoluble in polar solvents or water but they are generally soluble in non-polar organic solvents.
- They are mainly non-conductors.
learn more:
Covalent compound brainly.com/question/3109255
Covalent bond brainly.com/question/6029316
#learnwithBrainly
NaCl is salt to it is obviously SOLUBLE :)
Answer:
I am almost certain the answer is a marshmallow.
Hope that helps!
Answer:
2500 Calories IS REQUIRED TO HEAT 50 g OF WATER FROM 25 C TO 75 C
Explanation:
Specific heat of water = 1 cal/gC
Mass = 50 g
Temperature change = 75 C - 25 C = 50 C
How many calories are required to heat the 50 g of water?
Heat = mass * specific heat * temperature change
Heat = 50 * 1 * 50
Heat = 2500 Calories
In other words, 2500 calories is required to heat 50 g of water from 25 C to 75 C.
