5. Compare the total amount of energy before and after physical and chemical changes. O The total amount of energy is decreased There is no energy at all The total amount of energy stays the same The total amount of energy is increased

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A: Answer: Diffusion:In physics, the term diffusion is described as the process in which substances…

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A:

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Q: The recommended daily calorie intake for women is 2,000 cal and 2,500 cal for men.  Convert to…

A: Given  Calorie intake for women Q = 2000 cal  To find  Daily calorie intake of woman in joules

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A: When one chemical material is changed into one or more other chemical substances, such as when iron…

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Q: 47. | The distance between the molecules The repulsive force between two molecules B D Figure 10

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Q: diagram of the fractional distillation system. Explain

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Q: 1. A student investigated physical and chemical changes using eggs. The student performed the…

A: Physical change is a reversible process. It involves the change in the state of the matter, But the…

Q: 2. Substances have a definite and unchanging chemical composition. Examples of substances are salt,…

A: Option C is correct  Their composition is balance wherever you find them

Q: How much heat is needed to cause the following irreversible reaction?     250 g of liquid H2O at…

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Q: -The energy from a nuclear reaction is usually in the form of, electrical heat chemical mechanical…

A: Required : Form of energy from a nuclear reaction.

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Q: Thermography is .A different temperatures .B mapping .c two different metals .D consists of two…

A: Thermography is mapping to create thermal maps for survey, that is used for different purposes. Also…

Q: The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this…

A: Solution: Givwn that The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the…

Q: Find the percentage by mass of oxygen (O) in Al2O3 if it is 52.9% aluminum (Al) by mass. (Round your…

A: please see the next step for solution

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A: 8. According to the Arrhenius equation. K=Ae-EaRT Here, K is the rate constant, A is the frequency…

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Q: 13. When a solid changes immediately to a gas, this process is called: Sublimation Condensation…

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Q: 4. Which ONE of the following statements is not correct? (a) In a physical change no new substance…

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Q: #13 Alternative Energy measures Noting that one Mole contains Avogadro's number (6.02 × 1023) of…

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Q: Suppose your hair grows at the rate 1/32 in. per day. Find the rate at which it grows in nanometers…

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Q: 1. TRUE OR FALSE (a) An endergonic reaction is non-spontaneous and requires absorption of energy.…

A: Endergonic reaction: An endergonic reaction is a reaction in which energy is absorbed. First Law of…

Q: A 12 oz can of soda contains 40 g (or a bit less than 1/4 cup) of sugar, a simple carbohydrate. What…

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Q: 24.) Which of the following is considered an important non fuel use of petroleum based products?

A: Petroleum is naturally occurring liquid fuel found beneath the Earth’s surface.