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4 years ago

What are conversion factors in chemistry?

Chemistry

1 answer:

jenyasd209 [6]4 years ago

5 0

A conversion factor is ALWAYS equal to 1 :)

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Suppose a hydrogen atom is in the n = 4 excited state. what is the largest number of photons that can be emitted as the atom ret

FinnZ [79.3K]

One photon is emitted each time an electron downs one or more levels of energy.

The ground state of hydrogen is n = 1.

So the electron has the possibility to release one photon when the electrons goes downward from n = 4 to n = 3, one more photon when goes downward from n = 3 to n = 2 and one more photon when goes downward from n = 2 to n = 1. So, the largest number of photons that can be emiited as the atom returns fo the ground state (n = 1) is 3.

Answer: 3

8 0

4 years ago

Suppose that 27 g of each of the following substances is initially at 29.0 ∘C. What is the final temperature of each substance u

Leviafan [203]

Answer:

The answer is going to be GOLD

5 0

3 years ago

Suppose you store a 15.5 g piece of aluminum (Cp of Al = 0.902 J/g⁰C) in the refrigerator at 2.3⁰C and then drop it into your co

Scorpion4ik [409]

Answer:

605.4 J

Explanation:

When a certain substance absorbs a certain amount of energy, its temperature increases according to the equation:

$Q=mC\Delta T$

where

Q is the heat absorbed

m is the mass of the substance

C is the specific heat capacity of the substance

$\Delta T$ is the change in temperature

In this problem, we have:

m = 15.5 g is the mass of the piece of aluminium

C = 0.902 J/g⁰C is the specific heat of the aluminium

$\Delta T = 45.6-2.3=43.3^{\circ}C$ is the change in temperature of the aluminium (in fact, at thermal equilibrium, the block of aluminium reaches the same final temperature as the coffee)

Therefore, the energy absorbed is

$Q=(15.5)(0.902)(43.3)=605.4 J$

3 0

3 years ago

Which of the following planets has ammonia clouds in its atmosphere?

AlekseyPX

Answer:

Jupiter and Saturn has ammonia clouds in its atmosphere since the molecules of ammonia gas that are present in their atmospheres condense to form clouds. However, these ammonia clouds are more visible in Jupiter than in Saturn because of their lower altitude in Saturn.

6 0

3 years ago

How do you balance a chemical equation

Dominik [7]

There should be mass balance and the charge balance between the reactants and the products

Mass balance : total no of individual atoms of each type should be balanced before and after the reaction

Charge balance : Overall charge of the reactants should be balanced with the overall charge of the products

You can balance,

1)by just looking at it

2)by Algebraic method given above or

3)by the redox method

You need to know how to get the oxidation numbers in order to use the oxidation method

6 0

3 years ago