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stich3 [128]
3 years ago
6

Is ibuprofen conductive in water?

Chemistry
1 answer:
umka21 [38]3 years ago
8 0
Yes it is conductive in water
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City A is located along the shore of an ocean. City B is at the same latitude and altitude, but it is located
arlik [135]

Answer:

A In the summer, the daytime temperature in City A is typically lower than the daytime temperature  in City B.

B In the winter, the daytime temperature in City B is typically lower than the daytime temperature  in City A.

Explanation:

5 0
3 years ago
1. A student has a petri dish packed with a layer of marbles. Which of the following activities should the student perform to de
Sindrei [870]

Answer: A.) Removing a few marbles from the petri dish and stirring the rest around as energy is added

B) The high temperature makes the gas molecules spread apart according to Charles's law because this law describes how a gas will behave at constant pressure.

Explanation: The phase transition from solid to liquid involves the use of energy to make the molecules present in solid to break the inter molecular forces and to start moving away from each other as in liquid. The molecules in solid are closely packed whereas in liquids they are loosely packed. Thus less number of molecules are present per unit volume in a liquid. Thus the marbles have to be removed to show less density and the energy has to supplied. Removing all but two marbles from the petri dish and shaking them vigorously as energy is added will give us a more disorderd state called gas in which the molecules are very far apart and the density is least.

B) According to Boyle's law the pressure is inversely proportional to the volume of the gas at constant temperature and constant number of moles. P\propto \frac{1}{V}     (At constant temperature and number of moles)

According to Charle's law the volume is directly proportional to the temperature of the gas at constant pressure and constant number of moles.

V\propto T    (At constant pressure and number of moles)

Thus as temperature of the gas increases , the volume also increases, and the density decreases. the gas becomes lighter and thus rises up.

7 0
3 years ago
1. 2KCIO3, -- 2KCI + 302<br> How many moles of O2 will be produced from 2.25 moles of KCIO3?
Scilla [17]

Answer:

3.375moles of O₂

Explanation:

The reaction expression is given as;

                   2KClO₃ → 2KCl + 3O₂

Number of moles of KClO₃  = 2.25moles

Now;

To find the number of moles of O₂ produced we use known number of moles.

So;

                  2 mole of KClO₃ will produce 3 moles of O₂

                 2.25moles of KClO₃ will produce \frac{2.25 x 3}{2}   = 3.375moles of O₂

8 0
3 years ago
What are the gas laws? (Include Boyle's law, charles's law, gay lussac's law, an avogadro's law) Could someone please summarize
Rina8888 [55]

Answer:

Boyle's Law: When the pressure of a gas increases, the volume of the gas will decrease as long as the temperature and amount of gas are constant.

So basically pressure is inversely proportional to Volume, when one increases, the other decreases, vice versa.

Equation: P_{1} V_{1} = P_{2} V_{2}

Charles Law: When the temperature of a gas increases, the volume of a gas will also increase if the pressure and amount of gas are constant.

So basically Temperature and volume are directly proportional.

Equation: \frac{V_{1}}{T_{1}} = \frac{V_{2} }{T_{2} }

Gay Lussac's Law: When the temperature of a gas increases, the pressure of a gas also increases when volume and the amount of gas remain constant.

Basically, Temperature and Pressure are directly proportional.

Equation: \frac{P_{1}}{T_{1}} = \frac{P_{2} }{T_{2} }

Avogadro's Law: The most intuitive gas law. When you increase the amount of gas, the volume will also increase.

Meaning the moles (amount of gas) is directly proportional to volume.

Equation: \frac{V_{1} }{n_{1} } = \frac{V_{2} }{n_{2} } (n stands for moles)

There is a combined gas law and ideal gas law but those are just the gas laws mentioned above but combined together. These should be everything.

8 0
2 years ago
Read 2 more answers
Question 5
Dafna11 [192]

The mass percent of oxygen is 32.82%.

<h3>What is a noble gas?</h3>

A noble gas is member of group 18 in the periodic table. The members of this group are known not to be reactive and they do not easily form compounds. However, there have been few compounds of the members of group 18 that have been reported.

Let us now calculate the relative molecular mass of xenon tetraoxide.

Xe + 4 (O)

131 + 4(16) = 195

Given that the mass of oxygen in the compound is 64, the mass  percent of oxygen in xenon tetroxide is obtained from;

64/195 * 100/1

= 32.82%

Learn more about mass percent:brainly.com/question/5394922

#SPJ1

5 0
1 year ago
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