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4 years ago

In which region are most particles moving the fastest?

Chemistry

2 answers:

Sphinxa [80]4 years ago

6 0

When the region is heated in the maximum temperature, the particles moves the fastest.

tester [92]4 years ago

3 0

Container which is heated

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Meaning of rust and rusting

Yuki888 [10]

Answer:a reddish- or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture.

Explanation: so basically rusting happens when a metal comes in contact with moisture and air, at a brown, dirty metal coat forms on it.

7 0

2 years ago

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Using the periodic table, choose the more reactive nonmetal.<br> Br or As

raketka [301]

Reactivity of non-metals depend on their ability to gain electrons. So, smaller is the size of a non-metal more readily it will attract electrons because then nucleus will be more closer to valence shell. ... Hence, Br is the non-metal which will be more reactive than At.

8 0

3 years ago

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The following data are obtained for the decomposition of N2O5 at a certain temperature: 2N2O5(g) ↔ 4NO2(g) + O2(g) Time(s) 0 200

cricket20 [7]

Answer:

K = 0.0003 s⁻¹

Explanation:

The reaction is

2N₂O₅ = 4NO₂ + O₂

The equilibrium is

$K[N_{2} O_{5} ]=-\frac{1}{2} \frac{d[N_{2} O_{5} ]}{dt} \\\int\limits^y_x {d[N_{2} O_{5} ]}{} \, =-2k\int\limits^t_0 {dt} \,\\ln[N_{2} O_{5} ]=-2kt+ln[N_{2} O_{5} ]$

a plot is attached

From the plot, the slope is -0.0006

-2 * K = -0.0006

K = 0.0003 s⁻¹

Download xlsx

6 0

3 years ago

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of xef2.

lys-0071 [83]

Answer: There are 4 bonding electrons and 18 non-bonding electrons.

Explanation: To determine the number of bonding and non-bonding electrons, we will use lewis dot structure for the molecule $XeF_2$

Lewis dot structure is the structure in which the valence electrons around an atom is shown in a molecule. It also tells us about the number of bonds present between the two neighboring atoms.

Valence electrons of Fluorine = 7

Valence electrons of Xenon = 8

In $XeF_2$

Total number of valence electrons = [(1 × 8) + (2 × 7)] = 22 electrons

From, the structure attached below, the number of bonds present = 2. Hence, the bonding electrons will be = 4 electrons

Number of non - bonding electrons = Total valence electrons - Number of bonding electrons

Number of non-bonding electrons = 22 - 4 = 18

4 0

3 years ago

Read 2 more answers

A compound that is composed of only carbon and hydrogen contains 80.0% c and 20.0% h by mass. What is the empirical formula of t

gladu [14]

<u>Solution</u> : Emperical Formula = $CH_{3}$

Emperical Formula - A formula that gives the simplest whole number ratio of atom in a compound.

In the question percentages are given then assume that the total mass is 100grams so that the mass of each element is equal to the percentage given.

Given : 80.0g Carbon

20.0g Hydrogen

First convert the given masses into moles.

$80.0g\text{ C} \times \frac{1 g/mole \text{ C}}{12.0 g/mole \text{ C}}= 6.66\text{mole of C}$

$20.0g\text{ H} \times \frac{1 g/mole \text{ H}}{1 g/mole \text{ H}}= 20.0\text{mole of H}$

Value of each mole divided by the smallest number of moles and then round off.

Moles ratio of the element are

$\frac{6.66}{6.66}\text{mole of C}= 1$

$\frac{20.0}{6.66}\text{mole of C}= 3$

This is the mole ratio of the elements and is repersented by the subscript in the emperical formula.

Emperical Formula = $CH_{3}$

3 0

3 years ago