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2 years ago

Which words help you to determine the meaning of the word declerate in paragraph 3 ?

Chemistry

1 answer:

Nonamiya [84]2 years ago

8 0

There is nothing attached to the question but this is the definition.

verb (used with object), de·cel·er·at·ed, de·cel·er·at·ing. to decrease the velocity of: He decelerates the bobsled when he nears a curve. to slow the rate of increase of: efforts to decelerate inflation.

Edit: reduce or cause to reduce in speed.

"the train began to decelerate"

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2 years ago

Describe the electron sharing between 2 oxygen atoms

erastova [34]

When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons.

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2 years ago

A box has 2 cm length, 3 cm width and 2 cm height. What is its volume? *

Valentin [98]

12cm cubed.
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3 years ago

Read 2 more answers

The enzyme, carbonic anhydrase, is a large zinc-containing protein with a molar mass of 3.00 x10^4 g/mol. Zn is 0.218% by mass o

tia_tia [17]

The mathematical expression for mass percent is given by:

$Mass percent = \frac{mass of the compound}{molar mass of the compound}\times 100$

Put the values,

$0.218 percent of zinc = \frac{mass of zinc}{3.00 \times 10^{4} g/mol}\times 100$

mass of zinc = $0.218 \times (3\times 100) g$

= $0.654 \times 100 g$ or 65.4 g

Now, number of moles of zinc = $\frac{given mass in g}{molar mass of zinc}$

= $\frac{65.4 g}{65.38 g/mol}$

= 1.00 mole

Number of atoms of zinc is calculated by the Avogadro number.

Now, according to mole concept

$6.022\times 10^{23}$ molecules of enzyme consists of $6.022\times 10^{23}$ atoms of zinc

So, 1 molecule of enzyme contains = $\frac{6.022\times 10^{23}atoms of zinc}{6.022\times 10^{23} }$

= 1 atom of zinc.

Hence, every carbonic anhydrase molecule consists of 1 atom of zinc.

5 0

3 years ago

Which of the following will have the slowest rate of diffusion at a given temperature?

marysya [2.9K]

<h3>Answer:</h3>

Chlorine gas (Cl₂)

<h3>Explanation:</h3>

According to the Graham's law of diffusion, the diffusion rate of a gas is inversely proportional to the square root of its density or molar mass.
Therefore, a lighter gas will diffuse faster at a given temperature compared to a heavy gas.
Consequently, the heavier a gas is then the denser it is and the slower it diffuses at a given temperature and vice versa.

In this case we are given gases, CI₂

, H₂,He and Ne.

We are required to identify the gas that will diffuse at the slowest rate.
In other words we are required to determine the heaviest gas.

Looking at the molar mass of the gases given;

Cl₂- 70.91 g/mol

H₂- 2.02 g/mol

He - 4.00 g/mol

Ne- 20.18 g/mol

Therefore, chlorine gas is the heaviest and thus will diffuse at the slowest rate among the choices given.

8 0

3 years ago