SAT High School

Predict the missing component of each reaction. ? 2 upper N a upper B r right arrow 2 upper N a upper C l plus upper B r subscript 2. HCl Cl2 Na HBr right arrow upper M g upper O plus upper H subscript 2. ? CHO C2H2 CO2 CO2 2H2O C 2H2O.

Answers

Answer 1

The given reactions are; First reaction is a displacement reaction, Second

reaction is the production of MgO and hydrogen gas.

1. The missing component is Cl₂.

2. The missing component is H₂O.

Reasons:

1. The given reaction can be presented as follows;

? + 2NaBr [tex]\longrightarrow[/tex] 2NaCl + Br₂

The above reaction has both 2 Na and 2 Br on the side of the reactants, and 2 Na, 2 Br, and 2 Cl on the side of the products, therefore

The missing component is Cl₂

2. The possible given reaction is presented as follows;

Mg + ? HBr [tex]\longrightarrow[/tex] MgO + H₂

The elements in the reactant side of the reaction are one Mg and unknown element (?)

The elements in the product side are one Mg one O and two H

Therefore;

The the missing elements in the reactants are, 2 H and 1 O, which gives;

The missing component = H₂O

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Answer 2

Answer:

1- B

2- C

Explanation:

Peep the attachment, give the other guy props for giving me the idea

Predict The Missing Component Of Each Reaction. ? 2 Upper N A Upper B R Right Arrow 2 Upper N A Upper

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I'm taking the test :)

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How the Whale Got His Throat?

This is a short fictional story that is written by a Whale and a small fish referred to as 'Stute Fish. The Whale had eaten all the other fishes in the sea except for the 'Stute Fish, which swam a little behind the Whale's right ear, so as to avoid being harmed.

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Answer:

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Answers

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Answer:

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What is the measure of arc BEC in circle D? 134° 150 209° 210°.

Answers

Answer:

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Explanation:

The measure of arc BEC in circle D is 134°. The correct option is 1.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called "centre".

The line of reflection symmetry is formed by every line that passes through the circle.

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Your question seems incomplete, the probable complete question is:

What is the measure of arc BEC in circle D?

134° 150 209° 210°.

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