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3 years ago

An example of a single displacement reaction is

Physics

2 answers:

g100num [7]3 years ago

6 0

Single Displacement Reaction Definition. A single displacement reaction is a chemical reaction where one reactant is exchanged for one ion of a second reactant. It is also known as a single replacement reaction.

Eduardwww [97]3 years ago

6 0

Answer:

Answered

Explanation:

A single replacement reaction one element replaces another in a single compound. This type reaction has the general reaction:

A+BC→AC + B

in this reaction B is replaced by A in the compound BC.

An example of such type of reaction is when potassium reacts with water.

2K + H20→ 2KOH + H2

In this reaction one atom of hydrogen of water is replaced by potassium.

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depending on Genetics the father genes depend on everything because they give most of the heredity and genetics to the child more than the mother does

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3 years ago

Read 2 more answers

Given that renewable sources provide only a small percentage of our energy and that nuclear power is so expensive, in your opini

Katena32 [7]

Answer:

No getting rid of fossil fuel is not at all possible.

Explanation:

Dream of 100% renewable energy is possible through electrification and use of energy from sun, water and wind. Since, the high production cost of power plant for extracting energy from these sources in itself is a big challenge and hence decarbonized energy in current scenario is not realistic.

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2 years ago

When a fluid flows over an object, the "friction drag": __________.A.is the drag due to the shear stress only. B. depends only o

astra-53 [7]

Answer:

D. is greater for turbulent flow than for laminar flow

Explanation:

what is friction drag?

friction drag is a phenomenon experienced when a body moves through a fluid. A practical example can be seen in the mild warmth we experience rubbing the palm's of one's hand together only in this case we are dealing with a solid body and a fluid (e.g air, water). friction drag is directly proportional to the area of the surface in contact with the fluid and increases as velocity increases. We see a practical example of this when the rate at which one rubs the palms together is fast but we use the word turbulent when we are dealing with fluids. Turbulent flow creates more friction drag than laminar flow( Flow between a smooth body and fluid) due to its greater interaction with the surface of the body
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I recommend Richardson and coulson vol 2 textbook, page 149, Chemical enginering fluid mechanics textbook by Ron dardy, page 341 for clearer explanation

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2 years ago

How can u prove that there is an electric field

zimovet [89]

Explanation:

By introducing a particle of one positive coulomb between the electric plates, the particle experience a force against the electrostatic forces, proving that it is in an electric field

The force experienced by this particle is known as Electric Field Intensity  denoted by E and it is given by

$k \times \frac{q {}^{2} }{r}$

where, k is constant =

$9 \times {10}^{9}$

q is the charge magnitude on the particle

r is the separation of the particles

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2 years ago

Ex1. An atom has atomic number Z = 6 and mass number A = 12. Establish:

Maksim231197 [3]

Answer:

Ex1.

a) Carbon : atomic number Z = 6 and mass number A = 12

b) Protons = 6; electrons = 6 ; neutrons = 6.

Ex2.

Molar mass of H₂O₂ = 34 g; BaF = 156 g; CO = 28 g.

Explanation:

Ex1.

a) the element with atomic number 6 and mass number 12 is carbon

b) number of protons and electrons in a element is given by its atomic number; and for neutrons its mass number - atomic number (A-Z).

⇒ protons = Z = 6; electrons = Z = 6.; neutrons = A-Z = 12-6 = 6.

Ex2.

Molecular formula of hydrogen peroxide is given by H₂O₂.

⇒ molar mass = 2×mass of hydrogen + 2×mass of oxygen

⇒ molar mass = 2×1 + 2×16 = 34.g

molar mass of BaF = mass of barium + mass of fluoride.

= 137 + 19 = 156 g

molar mass of CO = mass of carbon + mass of oxygen

= 12 + 16 = 28 g

7 0

3 years ago