Answer:true
Explanation:
<u><em>Covalent bonds are a class of chemical bonds where valence electrons are shared between two atoms, typically two nonmetals. The formation of a covalent bond allows the nonmetals to obey the octet rule and thus become more stable.</em></u>
Assuming the balloon is untied aka the air inside isn't intact.
It will get smaller when it rises.
A solution of sucrose in water has a boiling point that is HIGHER THAN 100 DEGREE CELCIUS. Impurities in water usually raise the boiling point of water making the water to boil at an higher temperature than 100 degree Celsius. The raise in the boiling point of water depends on the concentration of sucrose that is added to the water.
Answer: the first and fourth
Explanation:
Ripening and rotting can be explained as chemical changes in chemistry. The other two answers are physics-related. Venus rotates in an opposite direction because it has like forces with mercury, so it repels it, causing it to turn away. This is electromagnetic force, something definitely not directly related to chemistry. The 200-pound person problem has to do with weight, mass, and gravitational force, which is mainly in physics.
