All categories

3 years ago

Which one of the following is the general equation for a single-displacement reaction?

Physics

1 answer:

azamat3 years ago

8 0

Answer: A. AB + C → AC + B

Explanation:

A single displacement reaction is also known as single replacement reaction. A reaction in which an element replaces another element from the compound is known as single displacement reaction.

AB + C → AC + B

Here, element C replaces another element B from compound AB.

Thus, option A represents is a general equation for a single displacement reaction

Option B represents a double displacement reaction where one element of a compound replaces another element of another compound and vice-versa, option C is a synthesis reaction where two reactants or more combine to form one product. Option D is a decomposition reaction in which multiple products are formed from a single reactant.

You might be interested in

B) The alcohol level in a burette is 30cm3. If 55 drops of alcohol fall from the burette

lora16 [44]

Answer:

hsjxbbdbxbbcbbcbcbcbcbcbcbcncnc

7 0

4 years ago

A planet moves fastest in its orbit around the sun when it is at which position?

Nesterboy [21]

Answer:

When it's closest to the sun.

Explanation:

The force of gravity acting on a planet is equal to its mass times its centripetal acceleration.

Fg = m v^2 / r

The force of gravity is defined by Newton's law of universal gravitation as:

Fg = mMG / r^2

Therefore:

mMG / r^2 = m v^2 / r

MG / r = v^2

v increases as r decreases. So the planet is moving fastest when it's closest to the sun, also known as the <em>perihelion</em>.

6 0

4 years ago

Read 2 more answers

What do electrons in the same shell have in common? AThey have the same amount of energy incorrect answer BThey are all positive

Keith_Richards [23]

Answer:

They have the same amount of energy

Explanation:

Electrons are said to be the subatomic particles that move around the nucleus of an atom. These electrons are negatively charged particles that are seen to be quite smaller than the nucleus of an atom.

The electron shells of these atoms are usually being filled from the inside out with the low-energy shells closer to the nucleus being filled before they can go into the much higher-energy shells that are a bit out

8 0

4 years ago

A positively charged particle has a velocity in the negative z direction at point P. The magnetic force on the particle at this

REY [17]

Answer:

When reviewing the correct answer is A

Explanation:

The magnetic force is given by the expression

F = qv xB

where the bold letters indicate vectors, from this expression the module can be calculated

F = = q v b sin θ

the direction of the force is given by the rule of the right hand, for a positive charge the speed held by the thumb, the extended fingers point in the direction of the magnetic field and the palm points the direction of the force

in this case

the speed is in the negative part of the z axis

the force is in the negative direction of the axis and

consequently the magnetizing field is in the positive direction of the x axis

When reviewing the correct answer is A

6 0

3 years ago

A sample of helium has a volume of 5 liters at a pressure of 300 torr. What volume does the gas occupy at 500 torr?

marysya [2.9K]

The final volume of the gas is 3 L

Explanation:

We can solve this problem by applying Boyle's law, which states that: