Does a solution have to involve a liquid? explain.

Answers

Answer 1

Answer: No, not always. There is always going to be solutions of gases in the air. And, there may be a solution of metals in alloys.

Basically, a solution is just any of the same mixture, which is solid-solid, liquid-liquid, and gas-gas.

Answer 2

Answer: Yes a solution does have to involve liquid. For example. when when dissolving a solid you must have liquid to do so. And it also must contain liquid for another liquid. The Fact f one substance dissolving into another substance will require liquid.

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How many moles of water (H2O) would be produced if 10 moles of O2 gas reacted completely with excess H2 gas?2 H2(g) + O2(g) → 2 H2O(g)A. 5 B. 10 C. 20 D. 30
When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find the number of moles of oxygen that are needed to form 6 mol of Fe2O3 while showing your work.
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Which of the following best describes supersaturation?A
Water droplets begin to fall back to Earth from clouds.
B
Water vapor transfers back to water droplets or ice crystals.
Small particles form and bump into each other to form clouds.
D
The sun turns water into water vapor as it heats Earth's surface.

Answers

Answer:

B. Water vapor transfers back to water droplets or ice crystals.

Explanation:

Its What I know ehe sorry in advance if its wrong :))

Carbon disulfide is prepared industrially by reacting carbon with sulfur dioxide according to the above equation. If 70.8 g of carbon react, how many moles of CS2 are produced? Show all work, include all units, and box your answer.

Answers

Answer:

1.18 moles of CS₂ are produced by the reaction.

Explanation:

We present the reaction:

5C + 2SO₂ → CS₂ + 4CO

5 moles of carbon react to 2 moles of sulfur dioxide in order to produce 1 mol of carbon disulfide and 4 moles of carbon monoxide.

As we do not have data from the SO₂, we assume this as the excess reagent. We convert the mass of carbon to moles:

70.8 g / 12 g/mol = 5.9 moles

Ratio is 5:1, so 5 moles of carbon react to produce 1 mol of CS₂

Then, 5.9 moles will produce (5.9 . 1) / 5 = 1.18 moles

50 POINTS Which of the following is a synthesis reaction?

2H2O yields 2H2 + O2

H2 + Cl2 yields 2HCl

2Li + CaO yields Li2O + Ca

CH4 + 2O2 yields CO2 + 2H2O

Answers

You will notice that the first answer decomposes into two seperate products with 1 reactant, so since this is only true of decomposition reactions, that is not the answer.

H2+Cl2 yields 2HCl could be the answer, as it starts with 2 reactants and ends with one product, something found in synthesis reactions.

The third answer is incorrect because even though there are no decompositions of single products, the metal exchanges positions, something that only occurs in decomposition reactions.

In the fourth answer is also incorrect because the methane is oxidized. This only happens in decomposition reactions.

The correct answer, then, is B.

Which of the following is a major consequence of the shifting of the Intertropical Convergence Zone (ITCZ)? A. monsoon rains in South Asia B. few winds in the horse latitudes C. jet streams over the North Atlantic D. lush vegetation in the Amazonian rainforest

Answers

The shifting of the Intertropical Convergence Zone (ITCZ) results to A. monsoon rains in South Asia. The ITCZ is a region on Earth where the Northern and Southern hemispheres meet, causing the trade winds from both regions to meet. This causes a belt of low pressure, making the region prone to heavy rainfall or monsoon rains.

10. If a car travels from Town A to Town B on one road at different speeds and stops at red lights, knowing the distance between the towns and the total time of the trip can allow you to calculate A. instantaneous velocity.B. deceleration.C. average velocity.D. uniform velocity.

Answers

Answer: The correct option is C.

Explanation: Average velocity is defined as the displacement divided by the total time taken by the object.

Mathematically,

$\text{Average Velocity}=\frac{Displacement}{\text{Total time}}$

We are given, the distance between the two towns and also the total time, so we can easily calculate the average velocity.

Hence. the correct option is C.

Answer : Option C) Average Velocity

Explanation :

As we have the given information about the different speed and the distances between the town and the total trip time, then it will allow anyone to calculate the average velocity of the car.

The average velocity is defined as the displacement divided by the time taken. This will help to determine the average velocity the car was moving with while traveling to various distances.

How does Silicon shape our technological reality

Answers

Silicons are used in our day to day technology products.It is used used to micro-chips and motherboards and other components on nano-technologies.

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