CHEMISTRY MIDDLE SCHOOL

Aqueous solutions of chromium(III) iodide and potassium hydroxide react to give a chromium(III) hydroxide precipitate and aqueous potassium iodide.Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if there is no reaction.

Answers

Answer 1

Answer:

CrI₃ (aq) + 3 KOH (aq) → Cr(OH)₃ (s) + 3 KI (aq)

Explanation:

The chemical reaction between chromium (III) iodide (CrI₃) and potassium hydroxide (KOH):

CrI₃ (aq) + 3 KOH (aq) → Cr(OH)₃ (s) + 3 KI (aq)

where:

(aq) - aqueous

(s) - solid

The reaction will produce solid chromium(III) hydroxide (Cr(OH)₃) and KI aqueous potassium (KI).

Learn more about:

problems with chromium(III) salts

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B.diamonds

C.wood

D.fossil fuels

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Wood is renewable. This is because more trees can always be planted. All the other choices are non-renewable.

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Answer: Matter is not destroyed, only changes forms.

Explanation: Take my answer with a grain of salt, I'm not a genius in this type of stuff but, the law of matter states that matter is not destroyed, only changes forms. This can be applied to photosynthesis because the plants take water and use it to make glucose to eat.

Again, I'm not genius so take my answer with a grain of salt but, hope it at least helps a little.

The law of conservation of energy is a fundamental principle in physics that states that energy cannot be created or destroyed in an isolated system; it can only change forms or be transferred from one part of the system to another. This law applies to various natural processes, including those occurring in water and plants. Here's how it relates to these processes:

1. Photosynthesis in Plants:
- Plants undergo photosynthesis, a process in which they convert light energy from the sun into chemical energy stored in the form of glucose (a sugar) and other organic molecules.
- The law of conservation of energy applies here because the energy in sunlight is transformed into chemical energy within the plant. This chemical energy can be stored and later used for various plant functions.
- Photosynthesis also involves the conversion of carbon dioxide and water into glucose and oxygen, but the total energy within the system remains constant, following the law of conservation of energy.

2. Water in the Hydrologic Cycle:
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- When the water vapor condenses in the atmosphere, it releases heat energy (latent heat), warming the surrounding air. This energy is then transferred to the surrounding environment.
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In both of these natural processes, the law of conservation of energy is upheld. Energy is transformed and transferred, but the total energy within the system remains constant.

Warm and cold fronts are formed by the movement of different air masses.

Answers

That is true because the warm air goes up and the cold air comes down

Can someone please help me in number 1 and 2 thankss

Answers

1. New moon, waxing gibbous, Full moon, and waning crescent are the main ones but there are more.

2. The revolution of the Earth is 365.25 days while the revolution of the moon is 28 days. Also, the Earth orbits the sun while the moon orbits the Earth and vaguely orbits the sun due to the orbit of the Earth.

3. Tidal waves, seasons, and the lunar cycle.

4. Moonlight is light that is reflected off the moon's surface that comes from the sun. This "lights" the moon up. Sunlight is light that comes from the sun which is made by a bunch of chemical reactions.

Good luck!

A typical carbon atom has six protons, six neutrons, and six electrons. Which of these has the least amount of mass?A) one Proton
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D) These masses are too tiny to measure

Answers

Answer:

Explanation:

Answer:

six electrons

Explanation:

Electrons have almost virtually no mass and much less than a proton and neutron.

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d. Specific heat capacity is a positive value for liquids and a negative value for
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Answers

Answer:

I think d is correct answer

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