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3 years ago

1. What causes potential energy to change within a system?

Chemistry

1 answer:

USPshnik [31]3 years ago

7 0

Answer:

I don't know what you mean by that I just wanted to ask you this: who do u support? Biden or Trump?

Explanation:

Thank you if you answered my question!

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a balloon is filled with 3.60 L of H2 gas at STP. If the balloon is taken into the sea where the pressure is 2.50 atm and the te

kherson [118]

The new volume of the hydrogen gas in the balloon is 1.5 L.

<u>Explanation:</u>

At STP, Temperature, T1 is 0° C = 0 + 273 K = 273 K

Pressure, P1 = 1 atm

Here given volume, V1 = 3.60 L

Balloon at sea,

Pressure, P2 = 2.5 atm

Temperature, T2 = 10° C = 10 + 273 = 283 K

Volume, V2 = ?

Here, we have to use the equation,

$$\frac{P1V1}{T1} = \frac{P2V2}{T2}$

We have to rearrange the equation to get V2 as,

$$V2 = \frac{P1V1T2}{T1P2}$

Now plugin the values as,

V2 = $$\frac{1 atm \times 3.6 L \times 283 K}{273 K \times 2.5}$

= 1.5 L

So the new volume of the hydrogen gas is 1.5 L.

7 0

4 years ago

Read 2 more answers

How many moles in 28 grams of CO2

Crank

That is approximately .63620 grams.

8 0

3 years ago

4. Synthesis problems. Propose a synthetic route from the starting material to the product. In your answer, show each individual

Troyanec [42]

The reduction of alkyne to an alkene in the first step allows the best reagent to be chosen for each subsequent step.

Describe reagents.

A reagent is merely an essential component of a chemical reaction, it should be mentioned. It is an ingredient that speeds up the reaction.

With H2 and Lindlar's catalyst, an alkyne is reduced to alkene as the initial step in this process. Alkene will then be brominated to produce allyl bromide as the next step.

In this instance, the required allyl alcohol will be produced via the reaction of allyl bromide with NaOH.

Learn more about reagent here brainly.com/question/23342137

#SPJ4.

5 0

2 years ago

The density of helium in a 2.00 L tank at 1.0 atm and 23 degrees Celsius is?

andrezito [222]

The output density is given as kg/m 3, lb/ft 3, lb/gal(US liq) and sl/ft 3. Specific weight is given as N/m 3 and lb f / ft 3.

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3 years ago

Provide your answer in the following format: [element name], [chemical family]

erastova [34]

Answer: Bismuth (Bi) , Nitrogen family

Explanation:

As the element has 5 valence electrons in the sixth energy level, which mens it belongs to 6th period as the valence electron has entered the 6th energy level.

Now as the electrons are filled according to afbau's rule , the electronic configuration of the element will be :

$[Xe]4f^{14}5d^{10}6s^26p^3$

Now as the atomic number of element is equal to the number of electrons in a neutral atom , the atomic number is 83 and the element is Bismuth (Bi). As the last electron enters p -subshell , it is a p block element. It lies in group 15 which is nitrogen family.

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3 years ago