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Bingel [31]
3 years ago
14

The term rate means how

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
4 0

Explanation:

Rate is a term used to show how quickly something is occurring with time.

It is often used in just every day measurements.

Examples are speed, power consumption, velocity, cost rate, power, acceleration

  • Speed is the rate of change of distance with time. It measured in km/hr or m/s
  • Power consumption is measured kwh
  • velocity is the rate of change of displacement with time. Measured in m/s or km/hr or mi/s
  • cost rate is the amount of substance per measurement. Measured in price per cup or mass
  • Power is the rate at which work is done. Measured in J/s or Watt
  • Acceleration is the rate of change of velocity with time. Measured in m/s²

learn more:

Rate of chemical reaction brainly.com/question/6281756

#learnwithBrainly

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3 years ago
A molecular orbital is a region of space in a covalent species where electrons are likely to be found. The combination of two at
lara [203]

Answer:

bonding molecular orbital is lower in energy

antibonding molecular orbital is higher in energy

Explanation:

Electrons in bonding molecular orbitals help to hold the positively charged nuclei together, and they are always lower in energy than the original atomic orbitals.

Electrons in antibonding molecular orbitals are primarily located outside the internuclear region, leading to increased repulsions between the positively charged nuclei. They are always higher in energy than the parent atomic orbitals.

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3 years ago
If the container is closed and the ethanol is allowed to reach equilibrium with its vapor, how many grams of liquid ethanol rema
SVETLANKA909090 [29]

Explanation:

Let us assume that the given data is as follows.

        V = 3.10 L,        T = 19^{o}C = (19 + 273)K = 292 K

       P = 40 torr    (1 atm = 760 torr)

So,     P = \frac{40 torr}{760 torr} \times 1 atm

             = 0.053 atm

          n = ?

According to the ideal gas equation, PV = nRT.

Putting the given values into the above equation to calculate the value of n as follows.

                 PV = nRT

   0.053 atm \times 3.10 L = n \times 0.0821 L atm/mol K \times 292 K

                 0.1643 = n \times 23.97

                    n = 6.85 \times 10^{-3}

It is known that molar mass of ethanol is 46 g/mol. Hence, calculate its mass as follows.

               No. of moles = \frac{mass}{\text{molar mass}}

                 6.85 \times 10^{-3} = \frac{mass}{46 g/mol}  

                    mass = 315.1 \times 10^{-3} g

                              = 0.315 g

Thus, we can conclude that the mass of liquid ethanol is 0.315 g.

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3 years ago
Which set of elements is correctly matched with its ionic formula?
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E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

bit.^{}ly/3a8Nt8n

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Answer:

Middle: Self heating containers are really expensive but are useful because they are easy to use, portable, and can be recycled, unlike a camp stove which is not as easily moved.

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