b. unbonded electrons.
c. bonds.
d. movement of the electrons.
2. Which of the following statements is true about what happens during a chemical reaction? (1 point)
a. Bonds of the reactants are broken, and bonds of the products are formed.
b. Bonds of the reactants are formed, and bonds of the products are broken.
c. The bonds of both the reactants and the products are broken.
d. The bonds of both the reactants and the products are formed.
1. Potential of a chemical substances to undergo transformation in a chemical reaction is known as chemical energy. The chemical energy is stored in the bonds of chemical compounds.
Hence, in a compound, chemical energy is contained in bonds.
2. The process in which one or more substance known as reactants are converted to one or more completely new substances known as products are formed is known as a chemical reaction.
Hence, during a chemical reaction bonds of the reactants are broken, and bonds of the products are formed.
1.C 2.A are the answer to the following questions.
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
By reducing food sources, harming habitats, and resulting in calcium-related problems with eggs, acid precipitation in forests has the potential to reduce the rate of bird reproduction.
Yes, acid precipitation in forests has the potential to reduce bird reproduction rates by destroying their habitats, decreasing food sources, and directly damaging eggs and chicks through calcium depletion and disturbance of aquatic feeding systems.
Acid rain can cause soil and water to become more acidic, which reduces the amount of insects and aquatic life that birds rely on for food. Additionally, the thinner eggshells brought on by calcium leaching from the soil as a result of increased acidity can reduce the success of hatching.
There is evidence to show that acid precipitation can have detrimental effects on bird reproduction in impacted locations, albeit the magnitude of the impact varies depending on the specific bird species, ecological circumstances, and the severity of the acid rain.
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(2) CaH2 (4) NH3
gasoline
carbon
glucose
Answer: The correct answer is carbon.
Explanation:
Combustion reaction is defined as the reaction in which a hydrocarbon burns in oxygen or reacts with oxygen gas to produce carbon dioxide and water molecule.
Fossil fuels are defined as the hydrocarbons which mainly contains coal, fuel oil, natural gas etc..
When fossil fuels are burned in air, it mainly releases carbon dioxide, sulfur dioxide, methane, nitrous oxide etc..
The major component released during the combustion of fossil fuels is carbon.
Hence, the correct answer is carbon.