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Lana71 [14]
3 years ago
12

What is the difference between an element, compound and mixture?

Chemistry
1 answer:
Alex73 [517]3 years ago
6 0
A compound is considered a pure substance meaning there is only one type of particle in the substance. A mixture is a combination of two or more different chemical pot compound or an element or substances. It is not a pure substance but I combination of multiple particles
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Which feature is shared by all three-carbon monosaccharides?
Orlov [11]

They are all pentoses. In their linear forms, they all contain carbon carboxyl and several hydroxyl functional groups. In their linear forms, they all contain a carbonyl and several hydroxyl functional groups.

Carbon is a chemical element with the symbol C and atomic number 6. Carbon is a non-metal and is tetravalent. That atom donates four electrons to form a covalent chemical bond. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025% of the Earth's crust.

Carbon is used in some form in almost every industry in the world. It is used as fuel in the form of coal, methane gas, and crude oil (used to make gasoline). It is used to make all sorts of materials, including plastics and alloys such as steel (a combination of carbon and iron). Carbon is also found in fossil fuels such as petroleum (crude oil), coal and natural gas. Carbon is also found in dead, decaying animals and animal waste soils. Carbon is stored in the biosphere of plants and trees.

Learn more about  carbon here

brainly.com/question/141693

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8 0
2 years ago
Explain how humans acquire the energy to function.Explain the process of cellular respiration and how we obtain this energy.
Naddika [18.5K]

Answer:

energy = heat = producers = consumer animals =

decomposers = heat

Explanation:

this is the best

7 0
3 years ago
Which of the following is a farming method that helps reduce the effects of wind erosion?
MrMuchimi
You can reduce wind erosion by providing a protective plant cover for the soil.
4 0
3 years ago
The escape velocity from Earth's surface is 1.12 x 104 meters per second. At this speed, how many kilometers would a
Sati [7]

Answer:

2016 km

Explanation:

The escape velocity from Earth's surface is 1.12\times 10^4\ m/s.

We need to find how many kilometers would a  rocket travel in three minutes. It is a concept based on the definition of speed of an object.

Speed = distance per unit time

1 hour = 60 minutes

⇒ 3 minutes = 0.05 hour

1 m/s = 3.6 km/h

11200 m/s = 40320 km/h

So,

\text{distance}, d=v\times t\\\\d=40320\ km/h \times 0.05\ h\\\\d=2016\ km

Hence, a rocket will travel 2016 km in 3 minutes.

6 0
3 years ago
The mass percentage of hydrochloric acid within a solution is 15.00%. given that the density of this solution is 1.075 g/ml, fin
Morgarella [4.7K]

Given the mass percentage of HCl solution = 15.00 %

This means that 15.00 g HCl is present in 100 g solution

Moles of HCl = 15.00 gHCl*\frac{1 mol HCl}{36.46 g HCl} =0.411molHCl

Density of the solution = 1.075 g/mL

Calculating the volume of solution from density and mass:

100 g *\frac{1mL}{1.075 g} =93.0 mL

Converting volume from mL to L:

93.0 mL * \frac{1 L}{1000 mL} =0.093 L

Calculating the molarity of HCl solution from moles and volume:

\frac{0.411 mol}{0.093 L} =4.42 mol/L

8 0
4 years ago
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