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krok68 [10]
2 years ago
10

Which statement correctly describes the mass of a proton?

Chemistry
1 answer:
Varvara68 [4.7K]2 years ago
3 0

Answer:

The mass of a proton is about double the mass of a neutron

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The end of the iron fire poker that you are holding gets warm even though it is not directly in the fire. The motion of the iron
AlladinOne [14]
I believe the statement is true. The heat transfer involved here is called conduction. It is one type of heat transfer where it caused by the collisions of the particles in a certain body. As the you add heat to the object, the kinetic energy of the molecules increases therefore more collisions could happen which would mean energy is dissipated or transferred from molecule to molecule.<span />
8 0
2 years ago
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g how many grams of chlorine gas are produced in the following reaction from 0.490 g hydrogen and 50.0 g chlorine? which substan
Fittoniya [83]

The formed HCl concentration is 17.6g, and the limiting reactant is hydrogen.

<h3>What is limiting reactant?</h3>

In this case, based on the information provided, we can calculate the required grams of HCl by first identifying the limiting reactant using the moles of each reactant, which are in a 1:1 mole ratio:

nH₂ = .490gH₂ x 1 mol H₂ / 2.02g H₂ = 0.242 mol H₂

nCl₂ = 50.0gCl₂ x 1 mol Cl₂ / 70.9g Cl₂ = 0.705mol Cl₂

As a result, we conclude that hydrogen is the limiting reactant, and we use a 1:2 mole ratio with HCl, whose molar mass is 36.46 g/mol:

mHCl = .242 mol H₂ x 2mol HCl / 1 mol H₂ x 36.6g HCl / 1mol HCl

mHCl = 17.6g HCL

Therefore the concentration of HCl formed is 17.6g  and the limiting reactant is hydrogen.

To learn more about reactions refer to :

brainly.com/question/24795637

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7 0
11 months ago
State three reason why do you think air is a mixture and water a compound?
crimeas [40]
Because hydrogen and oxygen are two elements on the periodic table, water is composed of three atoms, forming a single molecule, and air is one of the components of water.
4 0
2 years ago
Lithium has 2 isotopos. One has a mass of
Rina8888 [55]

Answer:

The isotope with mass 6.015amu =7.5% abundance

The isotope with mass 7.016amu = 92.5%

Explanation:

<u>Step 1:</u> Given data

Lithium has an average atomic mass of 6.941 amu

Lithium has 2 isotopos with a mass, respectively 6.015amu and 7.016amu

<u>Step 2: </u>Calculate the abundances

Isotope with mass 6.015 amu has an abundance of X

Isotope with mass 7.016 amu has an abundance of Y

The average atomic mass is the average mass of the isotopes with its respectively abundance.

X+Y = 1 or X = 1 - Y

6.941 = 6.015X +7.016Y

This gives us:

6.941 = 6.015(1-Y) +7.016Y

6.941 = 6.015 - 6.015Y + 7.016Y

6.941 - 6.015 = -6.015Y +7.016Y

0.926 = 1.001Y

Y = 0.925

Y = 92.5%

X = 1- 92.5 = 7.5%  

To control we can do the following equation:

6.015*0.075 + 7.016*0.925 = 6.941

This means the abundances of the 2 isotopes are:

The isotope with mass 6.015amu =7.5% abundance

The isotope with mass 7.016amu = 92.5%

4 0
2 years ago
Help please ASAP I’ll mark you as brainlister
noname [10]

Answer: FeO is called ferrous oxide while Fe2O3 is ferric oxide

Explanation:

Ferrous oxide, commonly known as iron(II) oxide contains iron that lost 2 elections in the oxidation process. So it is able to bond with other atoms that have an extra 2 electrons to share. Ferric oxide, is commonly known as iron(III) oxide

8 0
2 years ago
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