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4 years ago

Acid precipitation can be traced back to the burning of fossil fuels. a. True b. False

1 answer:

5 0

The statement that ‘Acid precipitation can be traced back to the burning of fossil fuels.’ Is true. The answer is letter A. Burning of fossil fuels may emit harmful gases that is toxic to the atmosphere and the surrounding beings.

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Be sure to answer all parts. Carbon disulfide, a poisonous, flammable liquid, is an excellent solvent for phosphorus, sulfur, an

sveticcg [70]

Explanation:

Experiment Initial [CS2] (mol/L) Initial Rate (mol/L·s)

1 0.100 2.7 × 10−7

2 0.080 2.2 × 10−7

3 0.055 1.5 × 10−7

4 0.044 1.2 × 10−7

a) Choose the rate law for the decomposition of CS2.

Comparing equations 1 and 3, reducing the initial concentration by almost half (from 0.100 to 0.055) leads too the rate of reaction to be reduced by almost half (from 2.7 × 10−7 to 1.5 × 10−7).

This signifies that the reaction is a first order reaction.

Rate = k [CS2]

(b) Calculate the average value of the rate constant.

Taking equation 1.

Rate = k [CS2]

k = Rate / [CS2]

k = 0.100 / (2.7 × 10−7) = 0.037 x 10^8 = 3.7 x 10^6s-1

4 0

3 years ago

What reagent is needed to convert ch3ch2cooch2ch2ch3 to ch3ch2cho?

Vlada [557]

In this reaction ester is reduced to aldehyde. Such reduction can not be achieved by reacting reducing agents like LiAlH₄ because it will further reduce aldehydes to alcohols. So, in order to stop reduction at alddehyde, ester is reacted with bulky reducing agent, Diisobutylaluminium hydride (DIBAL) which works with same mechanism as that LiAlH₄ do. It also add hydride to carbonyl group. The reaction is shown below,

8 0

4 years ago

How does electrolysis separate hydrogen and oxygen.

Paladinen [302]

Answer:process of using an electrical current to separate water into hydrogen and oxygen gas

Explanation:

5 0

2 years ago

The total number of valence electrons in the phosphate ion is

Vitek1552 [10]

Answer:

Step-by-step explanation:

There are two ways you can count the valence electrons.

A. From the Periodic Table

1 × P (Group 15) = 5

4 × O (Group 16) = 4 × 6 = 24

+3 e⁻ (for the charges) = 3

Total = 32

B. From the Lewis structure

In the Lewis structure (below), each line (bond) represents a pair of bonding electrons, and each dot represents an unbound electron (half a lone pair).

5 lines (bonds) = 5 × 2 = 10

3 single-bonded O atoms = 3 × 6 = 18

1 double-bonded O atom = 4

Total = 32

4 0

4 years ago

Freezing requires

Flauer [41]

A. the removal of energy because you will be losing heat

3 0

4 years ago

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