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tekilochka [14]
3 years ago
14

What is an element?​

Chemistry
2 answers:
nadya68 [22]3 years ago
8 0
Answer:
Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and primary constituents of matter are called element. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms.

Hope it helps u!
Andrews [41]3 years ago
5 0

Answer:

An element is a pure substance that cannot be converted further into anything simpler than itself by physical or chemical process

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Convert the following measurements using dimensional analysis. Set up problem using factors. Cross out the units that cancel. YO
uranmaximum [27]

Answer:

1) 0.423 m

2) 3.107 mi

3) 68.18 kg

4) 0.0083 mem

5) 0.528 gal

6) 4300 mL

7) 32.4 mem

8) 523.013 km

9) 70.866 in

10) 2.3 yek

Note: I can’t type the about equal to sign or the sign that shows a repeating decimal, so check the image for that and my work.

Explanation:

4 0
3 years ago
Vapor dispersion:
Contact [7]

Answer:

c. reduces the concentration of the hazardous material in the air.

Explanation:

Pollution can be defined as the physical degradation or contamination of the environment through an emission of harmful, poisonous and toxic chemical substances.

Particulate population is a form of pollution that is responsible for the degradation of the environment.

Particulate matter is also referred to as particle pollution or atmospheric aerosol particles and it can be defined as a complex microscopic mixture of liquid droplets and solid particles that are suspended in air. Other forms of particle pollution includes space debris and marine debris.

Some examples of particulate pollution are dusts, soot, dirt, smoke, etc.

Basically, various anthropogenic activities such as construction and agriculture are primary sources of particulate matter because they're capable of causing particle pollution on their own. The other sources of particle pollution is the secondary source which includes factories, cars, trucks, etc.

Vapor dispersion can be defined as a process which is typically used for removing particle pollutants from the atmosphere through the use of vapor or steam.

Hence, vapor dispersion when adopted, reduces the concentration of the hazardous material such as soot, dusts, smoke, etc., in the air.

5 0
3 years ago
Look at the following reaction. Select the option that best applies to the reaction.
tester [92]

Answer:

Two moles of KClO3 decompose to form 5 moles of product.

5 0
4 years ago
Read 2 more answers
why do elements in the same group have similar properties and how does this affect bonding capabilities ?
Alina [70]
Elements in the same group have the same amount of electrons, this affects bonding because it determines how much the element will "want" to form a covalent bond.
8 0
3 years ago
Read 2 more answers
The boiling point of ethanol is 78.3 degrees Celsius. The boiling point of
Scrat [10]

Answer:

K = 351.3

Explanation:

The relationship between the Celsius scale and kelvin scale is;

K = 273 + C

Since the Celsius temperature = 78.3

The kelvin temperature is given as;

K = 273  + 78.3

K = 351.3

8 0
3 years ago
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