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3 years ago

What law is known as the law of action- reaction?

Chemistry

1 answer:

Molodets [167]3 years ago

6 0

Law of Action and Reaction mean "To every action there is equal and opposite reaction.

Explanation:

It is Newtons third law which explained few things such as :-

1. The nature of the forces between the two interacting objects.

2. According to this law , the force that is exerted from Object-1 to Object-2 is said to be equal in magnitude and opposite to the direction to the force exerted to object 2 upon object 1.

3. Eaxmple - As we push against the wall - Action , the wall in return opposes equal force to resist the pressure of the hand - Reaction.

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What is the formula of hexaaquamanganese(ii) sulfate? express your answer as a chemical formula?

Digiron [165]

Answer : The formula of hexaaquamanganese(II)sulfate is $[Mn(H_2O)_6]SO_4$ .

Explanation :

Rules for writing formulas of coordination complexes :

Central metal is written first and then the ligands are written along with their prefixes.

The anion ligands are written before the neutral ligands.

If there are more than one anion ligands or neutral ligands then they are written in alphabetical order.

The given name of complex is, hexaaquamanganese(ii) sulfate.

In this, the central metal is manganese which is written as Mn and the ligand is water (which is a neutral ligand) is written as $H_2O$ and an anion is sulfate which is written as $SO_4$ .

Water is a neutral ligand and sulphate has a charge of -2. As the overall complex is neutral the metal bears a +2 charge which is represented in Roman numeral after the metal.

Therefore, the formula of hexaaquamanganese(II)sulfate is written as $[Mn(H_2O)_6]SO_4$ .

3 0

3 years ago

Need help ASAP plzzzzzz

oee [108]

Answer:

Biodiesel has a higher oxygen content (usually 10 to 12 percent) than petroleum diesel. ... Biodiesel is more chemically active as a solvent than petroleum diesel. As a result, it can be more aggressive to some materials that are normally considered safe for diesel fuel. Biodiesel is much less toxic than petroleum diesel.

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2 years ago

A 30.2 mL aliquot of a 30.0 wt% aqueous KOH solution is diluted to 1.20 L to produce a 0.173 M KOH solution. Calculate the densi

alexandr1967 [171]

Answer:

The density of solution is 1.283 g/mL.

Explanation:

Molarity of the KOH before dilution = $M_1$

Volume of the solution before dilution = $V_1=30.2 mL$

Molarity of the KOH after dilution = $M_2=0.173 M$

Volume of the solution after dilution = $V_2=1.20 L=1200 mL$

$M_1V_1=M_2V_2$

$M_1=\frac{M_2V_2}{V_1}=\frac{0.173 M\times 1200 mL}{30.2 mL}$

$M_1=6.8742 M$

$Molarity=\frac{moles}{Volume (L)}$

$V_1=30.2 mL=0.0302 L$ (1 mL = 0.001 L)

$M_1=\frac{n}{V_1}$

$n=M_1\times V_1=6.8742 M\times 0.0302 L=0.2076 mol$

Mass of 0.2076 moles of KOH:

0.2076 mol × 56 g/mol = 11.6256 g

Mass of KOH is solution = 11.6265 g

Mass of the solution = M

Mass percentage of solution = 30.0% of KOH

$30.0\%=\frac{11.6265 g}{M}\times 100$

M = 38.755 g

Density of the solution , d= $\frac{M}{V_1}$

$d=\frac{38.755 g}{30.2 mL}=1.283 g/mL$

The density of solution is 1.283 g/mL.

5 0

3 years ago

Question 11: How does the energy of a photon emitted when the electron moves from the 3rd orbital to the 2nd orbital compare to

hodyreva [135]

Answer:

Explanation:

The energy of a photon emitted when the electron moves from the 3rd orbital to the 2nd orbital is exactly same as the energy of a photon absorbed when the electron moves from the 2nd orbital to the 3rd orbital

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3 years ago

Helppp plss

wlad13 [49]

Answer:

Earth's atmosphere contains a huge pool of nitrogen gas (N2). But this nitrogen is “unavailable” to plants, because the gaseous form cannot be used directly by plants without undergoing a transformation. To be used by plants, the N2 must be transformed through a process called nitrogen fixation.

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2 years ago