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Yuliya22 [10]
3 years ago
15

Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the

bottom of the beaker. What is most likely true about the white solid?
It was secretly added to the beaker by the teacher.
It is a new substance with different properties.
It is an organic compound.
It will dissolve in water to form a blue solution.

Chemistry
1 answer:
Nesterboy [21]3 years ago
7 0
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the bottom of the beaker.So,<span>It is a new substance with different properties.</span>
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The sun produces ________ light , which is a combination of all the colors of light.
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The sun produces white light, which is a combination of all the colors of light.
3 0
4 years ago
Representative elements are grouped according to which of the following?
sdas [7]
B. Representative electrons

Firstly it is best to describe the shape and structure of an atom, an atom's system and structure is like of the solar planet, the heliocentric view where the sun is the neutrons and protons and the planets are the electrons. Moreover, the electrons are outside these neutrons and protons surrounding the entire system of its atomic structure. Its movement is like of a planet. 

<span>An energy level also known as electron shell, or just shell is a location around an atom where electrons with a specific  energy value,  or quantum number may be found.</span>
6 0
4 years ago
If 10.57 g of magnesium reacts completely with 6.96 g of oxygen, what is the percent by mass of oxygen in magnesium oxide? Round
Deffense [45]

Answer:

39.7 %

Explanation:

magnesium + oxygen ⟶ magnesium oxide

   10.57 g         6.96 g               17.53 g

According to the <em>Law of Conservation of Mass</em>, the mass of the product must equal the total mass of the reactants.

Mass of MgO = 10.57 + 6.96

Mass of MgO = 17.53 g

The formula for mass percent is

% by mass = Mass of component/Total mass × 100 %

In this case,

% O = mass of O/mass of MgO × 100 %

Mass of O = 6.96 g

Mass of MgO = 17.53 g

% O = 6.96/17.53 × 100

% O = 0.3970 × 100

% O = 39.7 %

5 0
4 years ago
Which hypothesis regarding the origin of life on Earth suggests that oxidation-reduction (redox) reactions may be responsible fo
telo118 [61]

The hypothesis that suggests that redox reaction is responsible for the formation of complex organic molecules is :

  • Reducing Atmosphere Hypothesis

<h3>Reducing atmosphere</h3>

Reducing atmosphere hypothesis states that a reducing atmosphere is a condition whereby the atmosphere has an abundance of negative charges which leads to reducing reaction by the additon of electrons to compounds.

The addition of electrons to the compounds leads to the formation of complex organic molecules. some examples of reducing gases are :

  • Hydrogen and
  • Carbon monoxide

Hence we can conclude that The hypothesis that suggests that redox reaction is responsible for the formation of complex organic molecules is : Reducing Atmosphere Hypothesis.

Learn more about reducing atmosphere : brainly.com/question/3553382

3 0
2 years ago
Element for mercury symbols
Inessa [10]

Answer:

Mercury

Chemical element

Symbol: Hg

Explanation:

Please mark brainliest and have a great day!

5 0
3 years ago
Read 2 more answers
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