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3 years ago

Which natural resource is nonrenewable?

Chemistry

2 answers:

Veronika [31]3 years ago

7 0

Oil or petroleum are nonrenewable resources, the others are renewable resources.

marissa [1.9K]3 years ago

5 0

Answer:sugarcane

Explanation:

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Nitration of 1,4−dimethylbenzene (p−xylene) gives a single product having the molecular formula c8h9no2 in high yield. draw this

GarryVolchara [31]

Structure is in document below.
The mononitration of p-xylene can be easily carried out at 30 degrees C.
Para-xylene (p-xylene) is an aromatic hydrocarbon, one of the three isomers of dimethylbenzene. Para-xylene is colorless and highly flammable, not acutely toxic and has some narcotic effects.

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8 0

3 years ago

An archaeologist graduate student found a leg bone of a large animal during the building of a new science building. The bone had

Vlad [161]

Answer : The time passed in years is $2.74\times 10^2\text{ years}$

Explanation :

Half-life of carbon-14 = 5730 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{5730\text{ years}}$

$k=1.21\times 10^{-4}\text{ years}^{-1}$

Now we have to calculate the time passed.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = ?

a = initial amount of the reactant disintegrate = 15.3

a - x = amount left after decay process = 14.8

Now put all the given values in above equation, we get

$t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{15.3}{14.8}$

$t=274.64\text{ years}=2.74\times 10^2\text{ years}$

Therefore, the time passed in years is $2.74\times 10^2\text{ years}$

4 0

3 years ago

An example of a scientific law is the law of conservation of mass, which states that matter is neither created nor destroyed in

Amanda [17]

Answer:A) It was developed from past observations- true

It is subject to experimentation and revision.- false

It explains why mass is conserved- false

It predicts future observations-true

Explanation:

Before a hypothesis is proclaimed to be a law in science, numerous observation must have confirmed its validity and rigorous experimentation under carefully controlled conditions usually precedes the acceptance of a hypothesis as a law. The law of conservation of mass was developed from numerous past observation that proved its validity.

4 0

3 years ago

Why are plant oils important in our diet?

Lesechka [4]

Plant oil or also called as vegetable oils are considered as important part of our diet because it is the source of energy in our diet. Foods that are cooked using vegetable oils produce more energy than to those foods that are cooked using other oil. Vegetable oils also contains saturated and unsaturated fats and oils.
Vegetable oil or plant oil are healthier compare to the other oil. It also lessen the unwanted and unhealthy fats of an oil and gives only proper health diet to our body.

6 0

3 years ago

.Draw the structural formula of butane (C4H10). What class of organic molecule is butane?. Describe an isomer. Draw an isomer of

Zigmanuir [339]

H H H H
! ! ! !
H-C-C-C-C-H :Butane
! ! ! !
H H H H

butane is an alkane

an organic isomer is a chemical with the same molecular formula as another but different molecular structure

    H
   H H-C-H H
  !    !    !
H - C  - C -  C - H : 2-methyl propane
   ! ! !
   H H H

Hope that helps

7 0

3 years ago