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ivann1987 [24]
3 years ago
10

A chunk of limestone which is calcium carbonate reacts with acid at a certain rate. Is the limestone were crushed the rate of re

action between the acid and limestone would _________
Chemistry
2 answers:
frosja888 [35]3 years ago
8 0

Answer:

the rate of reaction between the acid and limestone would increase.

Explanation:

There will be an acid base reaction between calcium carbonate and the acid.

When we crush calcium carbonate the surface are per unit volume of the carbonate increases. Due to higher surface area the number of surface molecule increases which increases the reactivity of the compound.

The surface molecule have dangling valency.

GalinKa [24]3 years ago
5 0

A chunk of limestone which is calcium carbonate reacts with acid at a certain rate. Is the limestone were crushed the rate of reaction between the acid and limestone would increase.


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What would barium do to obtain a noble gas structure? gain 2 electrons lose 2 electrons gain 6 electrons lose 6 electrons
Tema [17]

Answer:

Lose two electrons.

Explanation:

Barium is present in group 2.

It is alkaline earth metal.

Its atomic number is 56.

Its electronic configuration is Ba₅₆ = [Xe] 6s².

In order to attain the noble gas electronic configuration it must loses its two valance electrons.

When barium loses it two electron its electronic configuration will equal to the Xenon.

The atomic number of xenon is 54 so barium must loses two electrons to becomes equal to the xenon.

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4 years ago
In an experiment, Lydia added 50 grams of sugar to 200 milliliters of water. She stirred the mixture, and the sugar eventually d
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A. physical change took place during the experiment. (plato users)

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3 years ago
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On the basis of your knowledge of the reaction of halogens with alkanes, decide which product you would not expect to be formed
KIM [24]

Answer:

On the basis of your knowledge of the reaction of halogens with alkanes, decide which product you would not expect to be formed in even small quantities in the bromination of ethane?

A) BrCH2CH2Br

B) CH3CH2CH2Br

C) CH3CHBr2

D) CH3CH2CH2CH3

E) BrCH2CH2CH2CH2Br

Explanation:

The reaction of ethane with bromine in presence of UV light forms mono substituted ethane at all primary and secondary carbons.

This is an example of free radical substitution.

The structure of ethane and its bromination is shown below:

Among the given options that which is not possible to form is option B) that is CH3CH2CH2Br(propyl bromide).

Remaining all other products are possisble to form on free radical substitution of ethane.

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3 years ago
CH4(g) gas reacts with F2(g) to produce CH3F(g) and HF(g) .
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Answer:

I am looking for this as well. Can someone please help!

Explanation:

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3 years ago
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Amateur radio operators in the United States can transmit on several bands. One of those bands consists of radio waves with a wa
NeTakaya

Answer:

7.5 × 10¹⁵ Hz

Explanation:

Given data

  • Wavelength of the radio waves (λ): 40 nm = 40 × 10⁻⁹ m = 4.0 × 10⁻⁸ m
  • Frequency of the radio waves (ν): ?
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We can determine the frequency of the radio waves using the following expression.

c = λ × ν

ν = c/λ

ν = (3.00 × 10⁸ m/s)/4.0 × 10⁻⁸ m

ν = 7.5 × 10¹⁵ s⁻¹ = 7.5 × 10¹⁵ Hz

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