A search engine will help you

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Answer 1

Answer: And a search engine can help you to research anything. You can see the most popular news, what celebrities are doing, get on social media websites, anything. A search engine is a necessity for computers and you.

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What orbits from a pi bond

Answers

A pi bond is a bond formed by the overlap of orbitals in a side-by-side fashion with the electron density concentrated above and below the plane of the nuclei of the bonding atoms. ... Three sigma bonds are formed from each carbon atom for a total of six sigma bonds total in the molecule.

Which of the following best describes how attractive forces of the molecules in a solid compared to a liquid?A)The attractive forces are the same in a solid and liquid
B) The attractive forces are stronger in a liquid
C) The attractive forces are stronger in a solid
D)The attractive forces of a solid allow the particle to move freely while the liquid molecules vibrate around a fixed point

Answers

Answer:

Option-C (The attractive forces are stronger in a solid)

Explanation:

The substance either exist as a Solid or Liquid depends upon on the following two factors;

ii) Kinetic Energy:

Greater the K.E of particles, greater will be the distance between the particles of a substance. In Liquids the K.E of particles is greater than the K.E of particles in Solid. Hence, the Liquid Particles separated by greater distance as compared to particles of Solids.

ii) Attractive Intermolecular Forces:

Greater the Attractive Intermolecular Forces between the particles of a substance, smaller will be the distance between the particles. As the distance between the particles in Solid state of substance are very small as compared to that of Liquids hence, it can be concluded that the Attractive Intermolecular Forces in Solids are stronger than Liquids.

A container of hydrogen at 172 kpa was decreased to 85.0 kpa producing a new volume of 765 mL. What was the original volume

Answers

Answer:

$\boxed{\text{378 mL}}$

Explanation:

The temperature and amount of gas are constant, so we can use Boyle’s Law.

$p_(1)V_(1) = p_(2)V_(2)$

Data:

$\begin{array}{rclrcl}p_(1)& =& \text{172 kPa}\qquad & V_(1) &= & \text{?} \np_(2)& =& \text{85.0 kPa}\qquad & V_(2) &= & \text{765 mL}\n\end{array}$

Calculations:

$\begin{array}{rcl}172V_(1) & =& 85.0 * 765\n172V_(1) & = & 65 025\nV_(1) & = &\textbf{378 mL}\n\end{array}\n\text{The original volume was } \boxed{\textbf{378 mL}}$

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 300J of energy to the room?Answer:____________ unit:_______

Answers

Answer:

300 J.

Explanation:

The first law of thermodynamics is the law that demonstrates the conservation of energy.

It states that the total energy of an isolated system can not be created or destroyed, but it may be transformed into another form.

The energy released to the room is 300 J.

So, according to the law of conversation of energy; the amount of heat removed from food inside of the refrigerator is 300 J.

when the pressure that a gas exerts on a sealed container changes from ____ atm to 2.64 atm, the temperature changes from 315 K to 475 K

Answers

Answer:

1.75 atm

Explanation:

When the pressure that a gas exerts on a sealed container changes from 1.75 atm to 2.64 atm, the temperature changes from 315 K to 475 K.

(2.64 atm) x (315 K / 475 K) = 1.75 atm

The pressure and temperature of a gas in a sealed container are directly proportional. An increase in temperature would imply that the pressure also increased.

Answer:1.75 atm

Explanation:

In a closed system, increase in pressure leads to increase in temperature. Using pressure law, P1/T1 = P2/T2

Data =

P1 =?

P2 = 2.64 atm

T1 = 315k

T2 = 475k

From the equation above,

P1 = P2 * T1 / T2

P1 = 2.64*315 / 475

P2 = 1.75 atm

The modern periodic table is arranged in order of increasing _____________

Answers

Mendeleev arranged the elements into rows in order of increasing mass so .. In the modern periodic table the elements are arranged by increasing atomic .
Answer: atomic

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Which processes result in the release of carbon? Select three options.Animals break down food molecules to obtain energy. The remains of producers are broken down by decomposers. The remains of consumers are broken down by soil decomposers. Producers take in carbon dioxide. Producers make sugars and starches.

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