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2 years ago

What is diffusion ,??

2 answers:

7 0

Diffusion is the net movement of anything generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential.

UNO [17]2 years ago

4 0

Diffusion is a process that results from the random motion of molecules and results in a net movement of matter from a high-concentration region to a low-concentration zone.

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The three states of matter differ primarily in terms of shape and volume. Describe solids, liquids and gases in these terms.

schepotkina [342]

Answer:

solids have definite shape and volume. liquid have definite volume but not definite shape. gases do not have definite volume as well as definite shape.

8 0

3 years ago

Which of the following is most likely to produce heat energy?

Nina [5.8K]

Answer:

B.Convection

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

4 0

3 years ago

Read 2 more answers

Silicon reacts with carbon dioxide to form silicon carbide sic and silicon dioxide

andrew-mc [135]

The question is incomplete, here is the complete question:

Silicon reacts with carbon dioxide to form silicon carbide and silicon dioxide. Write the balanced chemical equation.

<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

The balanced chemical equation for the reaction of silicon and carbon dioxide follows:

$2Si+CO_2\rightarrow SiC+SiO_2$

By Stoichiometry of the reaction:

2 moles of silicon reacts with 1 mole of carbon dioxide gas to produce 1 mole of silicon carbide and 1 mole of silicon dioxide

Hence, the balanced chemical equation is written above.

5 0

3 years ago

A piece of gold ingot with a mass of 301 g has a volume of 15.6 cm3 . calculate the density of gold.

Fantom [35]

Answer:

19.29 g.cm⁻³

Solution:

Data Given:

Mass = 301 g

Volume = 15.6 cm³

Formula Used:

Density = Mass ÷ Volume

Putting values,

Density = 301 g ÷ 15.6 cm³

Density = 19.29 g.cm⁻³

6 0

2 years ago

How many atoms are in 755 moles?

artcher [175]

Answer:

The answer to your question is:

Explanation:

1 mol = 6.022 x 10 ²³ atoms

755 moles = x

x = 755 x 6.022 x 10 ²³ / 1 = 4.54 x 10 ²⁶ atoms

3 0

3 years ago

What is diffusion ,?? ​

What is diffusion ,??