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creativ13 [48]
3 years ago
11

A plane mirror is useful for seeing:

Chemistry
1 answer:
AURORKA [14]3 years ago
6 0
C. A nearly identical image.
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Write the complete nuclear symbol for a nucleus of oxygen with 8 protons & 10 neutrons?
Sav [38]

Answer: The complete nuclear symbol will be _8^{18}\textrm {O}

Explanation:

The nuclear symbol is written as: _Z^A\textrm {X} where Z= atomic number , A = mass number X = symbol of element

Atomic number is defined as the number of protons or number of electrons that are present in an atom.

For an electrically neutral atom,

Atomic number = Number of electrons = Number of protons = 8

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons  

Mass number = 8 + 10 = 18

Thus complete symbol will be _8^{18}\textrm {O}

4 0
2 years ago
MgBr2 + NaCl -> MgCl2 + NaBr is the reaction between magnesium bromide and sodium chloride. What type of reaction is this?
valkas [14]

Answer:

Synthesis

Explanation:

I just did the test and got it right!!

4 0
3 years ago
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Which is the best description of a cyclone?
RoseWind [281]
I think the one that best describes a cyclone is the first one (a dust storm rapidly changing weather in an area)
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3 years ago
What is the role of a catalyst in a chemical reaction?
Zinaida [17]

A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy without itself being consumed by the reaction.

4 0
2 years ago
You notice that you cannot read your book through a test tube of fluid held against the print, making it so blurred as to be unr
saveliy_v [14]

Answer:

b. colloid

Explanation:

Colloids are solutions that are going to have a solute and a solvent, but the size of the particles are bigger than in a solution that is clear. that is the reason that it looks blurred because the particles are bigger.

In the other hand, these particles of the solute are big, but not so big and heavy as in a suspension, so they are not going to precipitate in the bottom.

The movement of the particles are called Brownian movement, and they are the responsible to avoid to settle down at the bottom of the recipient.

3 0
3 years ago
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