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3 years ago

What does chemical reaction mean?

Chemistry

1 answer:

QveST [7]3 years ago

8 0

Answer:

definition of chemical reaction:

Explanation:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

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A certain electrolyte solution contains 1 gram of salt for every 8 grams of sugar and every 200 grams of water. If the sugar to

12345 [234]

Answer:

The resulting solution contains approximately 666 g of water.

Explanation:

In the initial solution we have:

1g salt : 8g sugar : 200g water

This means that the ratios are:

$\frac{salt}{sugar} = \frac{1}{8} \\\\\frac{sugar}{water} = \frac{8}{200} =\frac{1}{25}$

In the final solution we have:

5g salt: xg sugar: yg water

The new ratios are:

$\frac{salt}{sugar} = \frac{3}{8} \\\\\frac{sugar}{water} = \frac{1}{50}$

Now we can calculate the amount of sugar in the final solution:

$\frac{salt}{sugar} = \frac{5}{x} =\frac{3}{8} \\\\X = 13.333 g$

Finally, we calculate the amount of water:

$\frac{sugar}{water} = \frac{13.333}{y} = \frac{1}{50} \\y = 666.667 g$

4 0

3 years ago

Another name for light is

Karo-lina-s [1.5K]

Answer:

Another name for light is ¨Electromagnetic Radiation, luminous energy, and/or radiant energy.¨

Explanation:

Light is the electromagnetic radiation that´s capable of causing a visual sensation and has wavelengths from about 380 to about 780 nanometres. Electromagnetic radiation includes Radio Waves, Microwaves (used in microwaves), Infrared Radiation (heat), Visible Light (the colors we see), Ultraviolet (the UV radiation that causes sunburns), X-Rays (used in medical X-Rays), and Gamma Rays (which can be used to treat cancer). Light waves are transverse waves because they only travel east or west, but their crests and troughs face north and south (if desplayed on a coordinate grid). They wouldn´t be longitudinal waves because these waves don´t have vertical crests and troughs.

I hope this helps!

6 0

2 years ago

There are ___ atoms of oxygen in 300 molecules of CH3CO2H a) 300 b) 600 c) 150 d) 3.6 x 10^36

Maurinko [17]

Answer: The correct option is b) 600

Explanation:

Molecules are formed when two atoms of same or different elements combine together.

Atoms are the smallest unit of matter that combines to form a compound.

For the given chemical compound, $CH_3CO_2H$

Given number of molecules = 300 molecules

In 1 mole of the given chemical compound, there are 2 atoms of carbon, 4 atoms of hydrogen and 2 atoms of oxygen

Number of atoms of oxygen = $2\times \text{Number of molecules of compound}$

Number of atoms of oxygen = $2\times 300=600atoms$

Hence, the correct option is b) 600

8 0

3 years ago

What is a term that is used that a liquid changes to a solid or a liquid changes to a gas?

harkovskaia [24]

The term is change of state

8 0

3 years ago

Name the product formed by the oxidation of d-gulose.

faust18 [17]

Oxidation of D-glucose are usually found on the photosynthesis which has a by product of carbon dioxide (CO2) and water (H2O) chemically written as,

C6H12O6 +6O2----> 6CO2 +6H2O

Moreover, D-glucose can also be chemically react with oxygen to form D-gluconic acid and D-glucoronic acid.

8 0

3 years ago