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jonny [76]
3 years ago
5

What element has the atomic mass 26.981538​

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
6 0

Answer:

the answer is aluminum

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What type of molecule is 2-methylpentene?
mylen [45]
Answer is: branched alkene.

Carbon atoms can be arranged s<span>traight chain, branched chain and ring.
Hydrocarbon is an organic compound consisting of hydrogen and carbon.
In straight chain carbon atoms are bonded with only two other carbon atoms in elongate chain.
In branched chain at least one carbon is bonded with more than two other carbon atoms. In this example </span><span>2-methylpentene</span><span> second carbon atom is bonded with three carbon atoms.
Ring chain hydrocarbons are cyclic hydrocarbons.</span>
3 0
3 years ago
1. Which is a substance that cannot be broken down into another substance?
grandymaker [24]

Answer:

Atom

Explanation:

my theory:

Atoms are their own substance. It's atom because if you tried to break an atom, you would be going into nuclear physics. That would be unsafe and dangerous.

3 0
3 years ago
The density of gold is 19.3 g/cm3, and the density of iron pyrite is 5.02 g/cm3. What substance do you think you found?
Harrizon [31]

Answer:

Step 1

1 of 2

V = m / D; V (nugget of gold) = 50 g / 5.0 g / cm 3 = 10 cm3; V (nugget of iron pyrite) = 50 g / 19 g / cm3 = 2.63 cm 3

Result

2 of 2

Due to these results you can conclude that nugget of gold which volume is 10 cm3 is bigger than volume of nugget of iron pyrite which is 2.63 cm3.

Explanation:

4 0
3 years ago
If you were able to magnify a penny down to the atomic level, what two
Lena [83]

The two observations you would make about the atoms are

  1. They are made up largely of empty space
  2. Their mass is concentrated at the center called a nucleus

These observations were made by Ernest Rutherford in his model of the atom established in 1911, when he performed his gold foil experiment and observed the scattering angle of the alpha particles which led him to conclude that the mass of the atom was concentrated at the center.

Also, that most of the alpha particles also went through the gold foil suggested that the atom was made up basically of empty space.

So,

The two observations you would make about the atoms are

  1. They are made up largely of empty space
  2. Their mass is concentrated at the center called a nucleus

Learn more about the atom here:

brainly.com/question/24873449

7 0
3 years ago
In fireworks, the heat of the reaction of an oxidizing agent, such as KClO₄, with an organic compound excites certain salts, whi
Flauer [41]
  • In the visible spectrum, strontium exhibits a red hue at a wavelength of 641 nm in its salts.
  • In the visible spectrum, barium salts emit a green color at a wavelength of 493 nm.
<h3>What is oxidizing agent?  </h3>
  • An oxidizing agent is a substance that obtains or "accepts" or "receives" an electron from a reducing agent in a redox chemical process.
  • Or to put it another way, an oxidizer is anything that oxidizes something else.
  • Halogens, potassium nitrate, and nitric acid are a few examples of oxidizing substances.
  • A reducing agent, also known as a reductant, gets oxidized and loses electrons during a chemical process.
  • The electron donor, or reducing agent, is a substance that is normally in one of its lower potential oxidation states.

Learn more about oxidizing agent here:

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#SPJ4

4 0
2 years ago
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