What is the first step in creating a unit conversion factor?

Answers

Answer 1
Answer: determining the units.

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Which identifies an oxidation-reduction reaction?a double replacement reaction a neutralization reaction a reaction in which oxidation numbers change a reaction in which no electrons are transferred.

Which sentence contains a common allusion?O A. The meeting became extremely tense.
OB. The meeting turned into Waterloo.
O C. The meeting was held in Chicago.
OD. The meeting proceeded despite obstacles.​

Answers

The sentence that is a common allusion is:

B. The meeting turned into Waterloo.

All the other choices are not considered as an allusion

What is an allusion?

It is an inferred or roundabout reference to an individual, occasion, or thing or to a piece of another text. Most references rely upon the comprehension that there is a gathering of data that is shared by the essayist and the peruser consequently. the peruser will get the author's referent.

The example of common allusion from the instances given are:

The meeting turned into Waterloo.

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Answer:

B

Explanation:

The model below represents a nuclear reaction. Atom 1 is present before the reaction and Atom 2 and Atom 3 are produced after the reaction. Atom 1 = Atom 2 + Atom 3 + energy

The model most likely represents a reaction which
Select one:
a. takes place when atoms combine
b. takes place when atoms become inactive
c. does not produce energy in the sun
d. does not produce energy in nuclear power plants

Answers

Option C. Does not produce energy in the sun. Because energy in the sun is produced by fusion; this is the combination of two atoms, and that is the opposite to what the model shows.

Answer:

Correct answer is option C (does not produce energy in the sun )

Explanation:

Fusion:

When two light nuclei combined to form a heavy nucleus that time large amount of energy is emitted and this reaction is known as fusion reaction.

In sun energy is produced  due to fusion reaction but in this model atom1 is splitting in two light nuclei with emission of energy this type of reaction is known as fission reaction. This type of reaction is used to produce energy in nuclear power plant.So option D is not correct and it does not produce energy in the sun so option C is correct because this is fission reaction and in sun energy is produce due to fusion reaction.

What is a crystal?a. a type of rock
b. the smallest unit of an element
c. an artificial, decorative substance
d. a solid made of atoms arranged in an orderly fashion

Answers

A crystal is a solid made of atoms arranged in an orderly fashion .

answer: d. a solid made of atoms arranged in an orderly fashion.
D solid made of atoms arranged in an orderly configuration.

Chemical weathering occurs more rapidly in what kind of climates?

Answers

The water alone can perform chemical weathering with the aid of other chemicals which usually form acids that breaks the internal composition of the material. Hot & cold climates usually cause the flaking the outer layers of a rock (thermal expansion) but it belongs to physical weathering.
However, Physical and chemical weathering work together to disintegrate the rock more easier.
I can't specify a climate well because chemical weathering doesn't involve climate too much.


Water (H2O) is considered a mineral because it is inorganic and occurs naturally.a. True
b. False

Answers

b.false because water is not mineral

Within a period, an increase in atomic number is usually accompanied byA. a decrease in atomic radius and an increase in electronegativity.
B. an increase in atomic radius and an increase in electronegativity.
C. a decrease in atomic radius and a decrease in electronegativity.
D. an increase in atomic radius and a decrease in electronegativity.
E. None of these answer choices is correct.

Answers

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, the correct option is option A.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.

Within a period, an increase in atomic number is usually accompanied by  a decrease in atomic radius and an increase in electronegativity.

Therefore, the correct option is option A that is a decrease in atomic radius and an increase in electronegativity.

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The answer is a.........