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sveticcg [70]
3 years ago
5

Please help me. I can’t give too much points bc I don’t have too much.

Chemistry
1 answer:
zubka84 [21]3 years ago
7 0
Answer is photons hope this helps
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Solid substance A has a melting point of 100°C. Liquid substance B has a freezing point of 110°C. For each substance, identify i
9966 [12]

Answer:

both will be at liquid state. the particles will move rapidly in all directions and will collide with other particles in random motion

4 0
3 years ago
The bonds in the reactants of Figure 7-3 contained 372 kJ of chemical energy and the bonds in the products contained 350 kJ of c
satela [25.4K]

Answer: 22 kJ amount of energy is released in the following reaction.

Explanation: There are two types of reaction on the basis of amount of heat absorbed or released.

1. Endothermic reactions: These are the type of reactions in which reactants absorb heat to form the products. The energy of the reactants is less than the energy of the products.

2. Exothermic reactions: These are the type of reactions in which heat is released from the chemical reactions. The energy of the products is less than the reactants.

Sign convention for \Delta H: This value is negative for exothermic reactions and positive for endothermic reactions.

For the given chemical reaction,

Energy of the products is less than the energy of the reactants, Hence, this reaction will be a type of exothermic reaction and energy will be released during this chemical change.

Amount of energy released = (350 - 372) kJ = -22kJ

Negative sign symbolizes the energy is being released. So, 22 kJ amount of energy is released in the following reaction.

6 0
3 years ago
What type of a reaction occurs when a sodium hydroxide solution is mixed with an acetic acid solution?
Harman [31]

Answer:

C) acid-base neutralization

Explanation:

NaOH + CH₃COOH = CH₃COONa + H₂O

Break the solutions apart:

NaOH = Na⁺ + OH⁻

CH₃COOH = CH₃COO⁻ + H⁺

Combine the resulting solution after the reaction:

OH⁻ + H⁺ = H₂O

7 0
3 years ago
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If a piece of matter changes shape, how does its mass change?
kap26 [50]

The law of conservation of mass states that matter cannot be created nor destroyed the answer would be D. It remains the same
5 0
3 years ago
Definition of the density of the sun?
WARRIOR [948]

Answer:

"The core of the Sun extends from the center to about 20–25% of the solar radius. It has a density of up to 150 g/cm3 (about 150 times the density of water) and a temperature of close to 15.7 million kelvins (K)"

- goggle

8 0
2 years ago
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