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3 years ago

Brainiest if correctly answered in 5m

1 answer:

5 0

An organic compound must meet the requirements of having both Carbon and Hydrogen bound to one another. As you can see, CO2 is the only compound that is not organic because it lacks hydrogen in it. All the other compounds have at least 4 Hydrogens and is the reason why they are an Organic Compound.

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A species with a charge of -1 contains 57 electrons and 80 neutrons. What is the identity of the species. Note: The species show

Inga [223]

In a neutral atom, the number of protons is equal to the number of electrons.

Given that the charge on the ion of the element is -1. This means that there is one electron more than the number of protons in the element.

The atomic number = Number of protons = 57 -1 = 56

Element with atomic number 56 is Barium.

Mass number of the element = Number of protons + Number of neutrons

= 56 + 80 = 136

So the identity of the species: $^{136}Ba^{-}$

3 0

3 years ago

How can the electromagnetic force be increased? What different things affect the magnetic strength?

irina [24]

The electromagnetic force is responsible for most of the interaction we see in our environment today. The EMF holds electrons in their orbit around the nucleus.

Factors that can affect a magnets strength include : heat, radiation, strong, electrical currents in close proximity of to the magnet

4 0

4 years ago

Do you think naturally produced antimicrobial products like nisin and natamycin should replace sorbic acid for food preservation

saul85 [17]

Answer:

No.

Explanation:

change is often not rational.

7 0

3 years ago

The molar absorptivity of Beta-carotene at 490 nm is 1.36 x 105 M-1cm-1. What is the concentration of a solution of Beta-caroten

finlep [7]

Answer:

The correct answer to the following question will be Option E (1.0 x 10⁻³ M).

Explanation:

The given values are:

$A\lambda =140$

$\varepsilon=1.36\times 10^5 \ M \ {cm^{-1}}$

L = 1 \ cm

As we know,

⇒ $A\lambda=\varepsilon CL$

On putting the given values in the above formula, we get

⇒ $140=1.36\times 10^5\times C\times 1$

⇒ $C=\frac{140}{1.36\times 10^5}$

⇒ $C=102.9\times 10^{-5} \ M$

So that option E is the right answer.

3 0

3 years ago

A container of N2O3(g) has a pressure of 0.265 atm. When the absolute temperature of the N2O3(g) is tripled, the gas completely

Rzqust [24]

Answer:

1.59 atm

Explanation:

The reaction is:

$N_{2}O_{3}(g) - - -> NO_{2}(g)+NO(g)$

The dalton's law tell us that the total pressure of a mixture of gases is the sum of the partial pressure of every gas.

So after the reaction the total pressure is:

$P_{total}=P_{NO_{2}}+P_{NO}$

we don't include $N_{2}O_{3}$ because it decomposed completely.

Assuming ideal gases

PV=nRT

P= pressure, V= volume of the container, n= mol of gas, R=constant of gases and T=temperature.

so moles of $N_{2}O_{3}$ is:

$n_{N_{2}O_{3}}=\frac{P_{1}V}{RT_{1}}$

from the reaction stoichiometry (1:1) we have that after the reaction the number of moles of each product is the same number of moles of $N_{2}O_{3}$ .

$n_{NO_{2}}=\frac{P_{1}V}{RT_{1}}$