Three compounds that contain elements from Group 16 are SeO2F2 , SeOF2,
and SOF2. Possible Lewis electron dot diagrams for the compounds are
shown below. Which structure, A, B, or C, minimizes the formal charges for
each atom in SeO2F2 ?

Answer:

Explanation:

Newtons 1st law:

If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It might also stop if a hockey player places their stick in front of it.

Newton's 2nd law:

If the mass of an object is 20 kg and it's acceleration is 5 m/s, the force acting upon it is (m*a or 20*5) 100 N.

Another example that proves that force is dependent upon mass is that if you were to move a car and a truck (that were both previously stationary) at the same speed, the car would take less force/effort to move than the truck.

Newton's 3rd law:

If a book on a table, the table is exerting a force on it that is equal and opposite to the force of gravity.

If two soccer balls of the same mass collide, one moving and one stationary, then they would both apply an equal and opposite force onto each other, causing the moving ball to stop and the previously stationary ball to move at the speed of  the previously moving ball.

Answer:

Molar mass of O is = 16

Molar mass of O2 = 32

Answer:

freezing

Explanation:

when objects are in liquid for, molecules are not moving as rapidly as when an object is in solid form

Answer:

evaporation :)

Explanation:

Answer:

A true universal solvent does not exist. Although water is considered to be a the "universal solvent" it only dissolves other polar molecules. It does not dissolve nonpolar molecules, including organic compounds such as fats and oils. It is only called so because it can dissolve many more than other liquids.

Answer:

7.35 - 7.45

Explanation:

The pH scale ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline). A pH of 7.0, in the middle of this scale, is neutral. Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually, the body maintains the pH of blood close to 7.40.

Hope this helps

Answer:

The normal pH range if a base is more than 7

Explanation:

Basideally the pH range goes from 0-14 in which

Acidic range is :0-7

Neutral :7

Base : 7 - 14

Explanation:

What factors affect purity?

A1: The key parameters that can be controlled in an emew cell are current density, flow rate, electrolyte temperature, and plating time. The current density controls the production rate, while the flow rate, temperature, and plating time can all have an impact on the product

What factors affect yield?

The yield and rate of a chemical reaction depend on conditions such as temperature and pressure. In industry, chemical engineers design processes that maximise the yield and the rate at which the product is produced. They also aim to reduce waste and energy costs at all stages of the process.

HOPE THIS HELPS YOU THANK YOU.

Particles of matter are continuously moving, so they possess kinetic energy. As temperature rise the kinetic energy of atoms increase and particles move faster. So, they overcome the bonding force that holds them together. So, they change their state.

Answer:

4.4 g

Explanation:

Step 1: Write the balanced equation

Cu + 4 HNO₃ ⇒ Cu(NO₃)₂ + 2 NO₂ + 2 H₂O

Step 2: Calculate the moles corresponding to 3.2 L of NO₂ at STP

At standard temperature and pressure, 1 mole of NO₂ occupies 22.4 L.

3.2 L × 1 mol/22.4 L = 0.14 mol

Step 3: Calculate the moles of Cu needed to produce 0.14 moles of NO₂

The molar ratio of Cu to NO₂ is 1:2. The moles of Cu needed are 1/2 × 0.14 mol = 0.070 mol.

Step 4: Calculate the mass corresponding to 0.070 moles of Cu

The molar mass of Cu is 63.55 g/mol.

0.070 mol × 63.55 g/mol = 4.4 g

I thought it was related to spanish a spanish question Im sorry :(

Answer:

It means that you are active in the day and not active in the night.

Explanation:

Like owls for example.

Answer:

4

Explanation:

Got it right edge 2021

Answer:

4 or C

Explanation:

i took the quiz

Answer: 8 moles of Fe

Explanation:

If 2 moles oxide give 4 moles Fe, so 4 moles oxide gives 8

Answer:

a . eight tenths of her cookies

Explanation:

Let the total number of Lakesha's cookies be represented by x.

So that;

She gave three tenths to Bailey = [tex]\frac{3}{10}[/tex] of x

                                                     = [tex]\frac{3x}{10}[/tex]

She gave five tenths to Helen = [tex]\frac{5}{10}[/tex] of x

                                                  = [tex]\frac{5x}{10}[/tex]

Fraction of Lakesha's cookies given away = [tex]\frac{3x}{10}[/tex] + [tex]\frac{5x}{10}[/tex]

                                                      = [tex]\frac{3x+ 5x}{10}[/tex]

                                                      = [tex]\frac{8x}{10}[/tex]

Thus, the fraction of cookies given away by Lakesha is [tex]\frac{8}{10}[/tex].

Answer:

Explanation:

SADOPOAKAWAASDASWDWSDWAA

According to stoichiometry and mole concept,1×10¹⁰ molecules reacted with excess hydrogen to make 2 x 10¹⁰ molecules of ammonia.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is important while balancing chemical equations.

In the given example, as 1 molecule of nitrogen produces 2 molecules of ammonia

∴2 x 10¹⁰ molecules of ammonia will be produced when 2 x 10¹⁰×1/2=1×10¹⁰ molecules .

Thus, 1×10¹⁰ molecules reacted with excess hydrogen to make 2 x 10¹⁰ molecules of ammonia.

Learn more about stoichiometry,here:

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Answer:

3.31 g/cm³

Explanation:

1000cm³ = 1L

4.87mL = 4.87 × 10^-3 × 1000 = 4.87 cm³

density = mass/volume = 16.12/4.87 = 3.31 g/cm³

Answer:

MgSO4 + 6H2O ----> MgSO4.6H2O

2C + O2 -----> 2CO

2CuO + C ------> 2Cu + CO2

C2H6 -----> C2H4 + H2

ZnO + C -----> Zn + CO

NiCO3 ------> NiO + CO2

CO2 + 2H2 ------> CH4 +O2

NaOH + HNO3 -----> NaNO3 + H2O

C2H6 --------> C2H4 + H2

Explanation:

Answer:

it is false

Explanation:

it goes in different ways not in order

Answer:

Explanation:

All of above except carbon dioxide

The compound that is held together by ionic bonds are CaCl₂,  NaCl, sodium bromide, and FeBr₃. The correct options are A, C, D, and F.

Ionic bonds are electrovalent bonds. These bonds are formed when two or more atoms lose electrons or gain electrons to form an ion. Ions are opposite charges that attract each other. Ionic bonds are formed in both metals and non-metals.

CaCl₂, calcium chloride, is formed between metals and non-metals. Some more examples are NaOH – Sodium Hydroxide, NaHCO₃—Sodium Hydrogen Carbonate, etc.

An example is NaCl, is sodium has 11 atomic numbers. Chloride has 6 electrons in its outermost shell. They will share electrons with each other to make the noble gas configuration.

Thus, the correct options are A. CaCl₂, C. NaCl, D, sodium bromide, and F. FeBr₃.

To learn more about ionic bonds, refer to the link:

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Answer:

d. positron

that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.

Answer:

D. Keq: [SO3][NO] /[SO2]NO2]

Explanation:

Hello!

In this case, according to the process to set up equilibrium expressions for chemical reactions at equilibrium, we realize we need to write up the concentration of products on top and that of reactants on bottom; thus, for there chemical reaction herein specified, we obtain:

[tex]Keq=\frac{[SO_3][NO]}{[SO_2][NO_2]}[/tex]

Thereby, the answer is D. Keq: [SO3][NO] /[SO2]NO2].

Best regards!

Answer:

D

Explanation:

Answer:

whats the question so i can answer?

Given :

Number of moles of CHF₃ is 1.7 .

Solution :

We know, 1 mole of any complex contains 6.022 × 10²³ molecules.

Let, 1.7 moles of CHF₃ contains n numbers of molecules.

So, n = 1.7 × 6.022 × 10²³ molecules

n = 10.2374 × 10²³ molecules

n = 1.0237 × 10²³ molecules

Hence, this is the required solution.

Answer:

2.8 m

Explanation:

From the question given above, the following data were obtained:

Number of mole KBr = 0.210 mole

Mass of water = 0.075 kg

Molality of KBr =?

Molality is simply defined as the mole of solute per unit kg of water. Mathematically, it can be expressed as follow:

Molality = mole of solute / Kg of water.

With the above formula, we can obtain the molality of the KBr solution. This can be obtained as follow:

Number of mole KBr = 0.210 mole

Mass of water = 0.075 kg

Molality of KBr =?

Molality = mole of solute / Kg of water.

Molality = 0.210 / 0.075

Molality = 2.8 m

Therefore, the molality of the KBr solution is 2.8 m.

Answer:

There are 1.205x10²³ particles in 0.2 moles.

Explanation:

In order to convert from moles to number of particles we need to use Avogadro's number, which states the number of particles contained in 1 mol:

Thus, there are 1.205x10²³ particles in 0.2 moles.

Answer:

610,000

Explanation:

When the radio station transmits on AM 610, so the number of hertz (Hz) is the frequency of the wave is 610,000.

Since radio station transmits on AM 610

We know that

1khz = 1000 hz

So it should be like

= 610 (1000)

= 610,000

hence, When the radio station transmits on AM 610, so the number of hertz (Hz) is the frequency of the wave is 610,000.

Learn more about frequency here: https://brainly.com/question/1960509

Answer:

A. Recession of glaciers and ice caps

Explanation:

Land bridges began to disappear after the Ice Age ended.

Basically, a rise in sea level.

Hope this helps :D

Answer:

Recession of glaciers and ice cap

Explanation:

because i just took the test

100% sure

Answer:

yes

Explanation:

bc i wanted to know how they taste btw they taste like metal not good 5/10

might try again but not recommended

my favorite one is a quarter probably

Answer:

Kindly check the explanation section.

Explanation:

Based on the description of the reacting -OH group containing Compound, the drawing of the chemical compound is given in the attached picture.

So, without mincing words let's dive straight into the solution to the question.

The reaction between the OH containing compound and PCC is an oxidation reaction.

Looking at the carbon number 1 which the first OH group and CH3 are attached to. Oxidation can not occur here as tertiary alcohol can not be oxidize.

Hence, the second OH will be oxidized into a carbonyl group, C = O. Kindly note that when alcohol oxidizes it turns into an aldehyde.

The equation for the reaction is also given the the attached picture.