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3 years ago

How does an atom change if all of its electrons are removed? .

Chemistry

1 answer:

Soloha48 [4]3 years ago

4 0

Answer:

If an atom looses all of its electrons then it will become positively charged. It will also turn into an Ion.

Explanation:

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Methanol can be produced by the following reaction: CO(g) 2 H2(g) CH3OH(g). How is the rate of disappearance of hydrogen gas rel

belka [17]

Answer:

$r_{H_2}=-2r_{CH_3OH}$

Explanation:

Hello!

In this case, for the reaction:

$CO(g)+ 2 H_2(g) \rightarrow CH_3OH(g)$

In such a way, via the rate proportions, that is written considering the stoichiometric coefficients, we obtain:

$\frac{1}{-1} r_{CO}=\frac{1}{-2} r_{H_2}=\frac{1}{1} r_{CH_3OH}$

Whereas the reactants, CO and H2 have negative stoichiometric coefficients; therefore the rate of disappearance of hydrogen gas is related to the rate of appearance of methanol as shown below:

$\frac{1}{-2} r_{H_2}=\frac{1}{1} r_{CH_3OH}\\\\r_{H_2}=\frac{-2}{1} r_{CH_3OH}\\\\r_{H_2}=-2r_{CH_3OH}$

Which means that the rate of disappearance of hydrogen gas is negative and the rate of appearance of methanol is positive.

Regards!

7 0

2 years ago

What’s the best answer?

irinina [24]

The answer would be more heat

4 0

2 years ago

A fossil is any natural evidence of prehistoric life that provides some idea of the size, shape, or form of the organism. A foss

ziro4ka [17]

Continent drifts

Explanation:

The use of fossil evidences to support the correlation of land masses that are presently not together can suggests that continents do move and land masses can change position.

This was one of the earliest prove suggest by Alfred Wegener to back up his theory of continental drift.

Since fossils are evidence of prehisotric life, a place originally together should have the same fossil contents.
When they become separated, the fossil contents in their lithology should match.

learn more:

Continental drift brainly.com/question/5002949

#learnwithBrainly

5 0

3 years ago

Boron trifluoride gas is collected at 2.0 degree C in an evacuated flask with a measured volume of 15.0 L. When all the gas has

IgorC [24]

Answer:

Moles of boron trifluoride gas that were collected = 11.6 mol

Mass of boron trifluoride gas that were collected = 787 g

Explanation:

Given that:

Temperature = 2.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (2.0 + 273.15) K = 275.15 K

V = 15.0 L

Pressure = 0.130 atm

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 0.0821 L atm/ K mol

Applying the equation as:

0.130 atm × 15.0 L = n ×0.0821 L atm/ K mol × 275.15 K

⇒n = 11.6 mol

<u>Thus, Moles of boron trifluoride gas that were collected = 11.6 mol </u>

Molar mass of boron trifluoride gas = 67.82 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$11.6\ mole= \frac{Mass}{67.82\ g/mol}$

<u>Mass of boron trifluoride gas that were collected = 787 g</u>

7 0

2 years ago

Earth has a surface area of 193 million square miles. What is its are in square kilometers

LUCKY_DIMON [66]

Your answer would be 499,867,705 square kilometers

8 0

3 years ago

Read 2 more answers