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3 years ago

What is the meaning of monovalent?

Chemistry

1 answer:

Gwar [14]3 years ago

8 0

Answer:

The meaning of monovalent is having a valence of one.

Explanation:

Having a specific immunologic activity against a single antigen, microorganism, or disease a monovalent vaccine.

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When the electron cloud of a molecule is easily distorted, the molecule has a high _____________.a. polarity b. polarizability c

katovenus [111]

Answer: Option (b) is the correct answer.

Explanation:

Polarity is defined as the development of partial charges on the atoms of a molecule.

Whereas polarizability is defined as the ability or measure of how readily an electron cloud is able to get distorted. More is the polarizability more will be the electron is distorted in nature.

A dipole moment is defined as the measurement of the separation of two opposite electrical charges.

Thus, we can conclude that when the electron cloud of a molecule is easily distorted, the molecule has a high polarizability.

6 0

3 years ago

Hi guys I need an science matter experiment to do at school. For example which chocolate is best to take at a hot climate? Dark,

inysia [295]

Dark is the strongest chocolate.

3 0

3 years ago

Gaseous ethane (CH,CH,) will react with gaseous oxygen (02) to produce gaseous carbon dioxide (CO2) and gaseous water (H,0). Sup

BigorU [14]

Answer: The mass of $CO_2$ produced is 12.32 g

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

For ethane:

Given mass of ethane = 4.21 g

Molar mass of ethane = 30 g/mol

Putting values in equation 1, we get:

$\text{Moles of ethane}=\frac{4.21g}{30g/mol}=0.140mol$

For oxygen gas:

Given mass of oxygen gas = 31.9 g

Molar mass of oxygen gas= 32 g/mol

Putting values in equation 1, we get:

$\text{Moles of oxygen gas}=\frac{31.9g}{32g/mol}=0.997mol$

The chemical equation for the combustion of ethane follows:

$2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O$

By stoichiometry of the reaction:

If 2 moles of ethane reacts with 7 moles of oxygen gas

So, 0.140 moles of ethane will react with = $\frac{7}{2}\times 0.140=0.49mol$ of oxygen gas

As the given amount of oxygen gas is more than the required amount. Thus, it is present in excess and is considered as an excess reagent.

Thus, ethane is considered a limiting reagent because it limits the formation of the product.

By the stoichiometry of the reaction:

If 2 moles of ethane produces 4 moles of $CO_2$

So, 0.140 moles of ethane will produce = $\frac{4}{2}\times 0.140=0.28mol$ of $CO_2$

We know, molar mass of $CO_2$ = 44 g/mol

Putting values in above equation, we get:

$\text{Mass of }CO_2=(0.28mol\times 44g/mol)=12.32g$

Hence, the mass of $CO_2$ produced is 12.32 g

7 0

3 years ago

What will occur when a population grows large than the carrying capacity of its environment

MissTica

Answer:

If the resources they need are not being refilled fast enough, the population will decrease.

Explanation:

If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size.

5 0

3 years ago

Scientists are often interested in knowing the molar heat of combustion the heat released during the combustion of one molar of

Butoxors [25]

Answer:

.004993

Explanation:

6 0

3 years ago

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