Which of the following statements best describes what happens to water during vaporization?

What types of chemical<br> reactions can change a toxic<br> chemical into one that is less<br> toxic

Masteriza [31]

Answer:

Very toxic materials are substances that may cause significant harm or even death to an individual if even very small amounts enter the body.There are a number of very toxic materials that may be used in workplaces. Some examples include carbon monoxide, hydrogen sulfide, chlorine and sodium cyanide

Explanation:

here are generally four types of toxic entities; chemical, biological, physical and radiation: Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and toxins.

8 0

3 years ago

Organisms reproduce by two main methods. One is division, in which the animal divides and creates an exact copy of itself. What

uysha [10]

Division (asexual) method, and the sexual method of reproduction where two organisms produce an offspring. The sexual reproduction requires the interaction of two organisms; gametes, typically a fertilization. The offspring consists of characteristics derived from both of the parental organisms.

4 0

3 years ago

How will temperature affect the spontaneity of a reaction with positive H and S?

BartSMP [9]

Answer:

D.A high temperature will make it spontaneous.

Explanation:

we know that

Δ G = Δ H - TΔS

For spontaneous reaction

Δ G should be negative . If Δ G = 0

Δ H = TΔS

T = Δ H / Δ S

At temperature above this T , Δ G becomes negative if Δ S and ΔH are positive .

So at a high temperature will make it spontaneous.

5 0

3 years ago

3. In the above molecules, generally the octet rule can not be followed for every atom. When there are too many electrons or two

Roman55 [17]

Answer:

The octet rule is possible in those atoms which has high number of electrons in their shells.

Explanation:

The octet rule is a type of rule in which the atom has 8 electrons in its outermost shell or valance shell. This rule is not possible for hydrogen and helium because there are very less number of electrons and we know that octet rule needed more number of electrons. Only one atom may be hydrogen or helium is affected in the structure is affected in these situations due to presence of less number of electrons in shells.

4 0

3 years ago

Indicate whether either an increase or decrease of pressure obtained by changing the volume would increase the amount the produc

vazorg [7]

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle:

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

On an increase in the volume :

If the volume of the container is increased, the pressure will decrease according to Boyle's Law. Now, according to the Le-Chatlier's principle, the equilibrium will shift in the direction where increase in pressure is taking place.And equilibrium will shift in direction where number of gaseous moles are more.

On an decrease in the volume :

If the volume of the container is decreased , the pressure will increase according to Boyle's Law. Now, according to the Le-Chatlier's principle, the equilibrium will shift in the direction where decease in pressure is taking place.And equilibrium will shift in direction where number of gaseous moles are less.

a. $CO(g) + 2 H_2(g)\rightleftharpoons CH_3OH(g)$

On an increase in the volume :

As the number of moles of gas molecules is greater at the reactant side. So, the equilibrium will shift in the left direction. So in order to increase the amount of product we have to increase the pressure of the reactants molecules decrease the volume.

b. $2SO_2(g) +O_2(g) \rightleftharpoons 2SO_3(g)$

As the number of moles of gas molecules is greater at the reactant side. So, the equilibrium will shift in the left direction. So in order to increase the amount of product we have to increase the pressure of the reactants molecules decrease the volume.

c. $2NO_2(g)\rightleftharpoons N_2O_4(g)$

As the number of moles of gas molecules is greater at the reactant side. So, the equilibrium will shift in the left direction. So in order to increase the amount of product we have to increase the pressure of the reactants molecules and decrease the volume .

5 0

3 years ago