moles
Calculate the number of moles of 3.00 g of boron tribromide,

Answers

Answer 1
boron tribromide = bBr3
mol = mass/mr
mol=3/10.811+3(79.904)
= 0.018772527032439

Related Questions

Compared to the energy of an electron in the second shell of an atom of sulfur, the energy of an electron in the
1
first shell is lower
2
first shell is the same.
3
third shell is lower
4
third shell is the same.

Answers

Answer:

First shell is lower

Explanation:

The electron has to absorb energy to excite and go to higher energy levels/ shells and should release energy to go to lower energy levels/ shells. This means higher the shell , more energy is required and vice versa

Answer please
.............................................................

Answers

    This is not exactly a answer you can use but this is some information that you can use to find out the answer.

    You can usually confirm the charge associate degree particle unremarkably has by the element's position on the periodic table: The alkali metals (the IA elements) lose one negatron to create a ion with a 1+ charge. The alkaline-earth metal metals (IIA elements) lose 2 electrons to create a 2+ ion.

    Nonmetals type negative ions (anions). A range 7|chemical element|element|gas} atom should gain 3 electrons to possess an equivalent number of electrons as AN atom of the subsequent gas, neon. Thus, a gas atom can type AN ion with 3 additional electrons than protons and a charge of 3−.

renal calculi contain crystallized calcium, magnesium, and uric acid. explain why patients with hyperparathyroidism would be at risk for developing renal calculi.

Answers

Patients with hyperparathyroidism would be at risk for developing renal calculi because of high calcium levels excreted by the kidney.

Hyperparathyroidism occurs when there is over secretion of parathyroid hormone by the parathyroid glands.

The parathyroid hormone is responsible for the following in the body:

Release of calcium by bones into the bloodstream.

Absorption of calcium from food by the intestines, and

Conservation of calcium by the kidneys.

Renal calculi are strong masses of stones deposited in the kidneys or urinary bladder.

When there is excess calcium in the blood due to hyperparathyroidism, the kidneys would be over burdened with the excretion of excess calcium.

That extra calcium in the kidney & the urine leads to kidney stone development ( renal calculi).

Therefore, patients with hyperparathyroidism would be at risk for developing renal calculi because of high calcium levels excreted by the kidney.

Learn more here:

https://brainly.com/question/24153052

For accurate answer i will mark you a brainlist:D

How will you convert 85 cm to 85 m, choose one of the following option:

( Remember there is a decimal in 85 after 5)

Question 12 options:

Move the decimal in 85 TWO places to the right to decrease the value.


Move the decimal in 85 THREE places to the right to increase the value.


Move the decimal in 85 TWO places to the Left to decrease the value.


Move the decimal in 85 THREE places to the Left to decrease the value.

Answers

Answer:

welp it would be this option : Move the decimal in 85 TWO places to the right to decrease the value.

Explanation:

Answer:

Option A

Explanation:

Moving the decimal point 2 places to the right will give you 8500 cm=85m

What is the wave length of an electromagnetic radiation ,having a frequency of 5.2 x 10^12 Hz? Note: c= 3.00 x 10^8 m/s

Answers

Answer:

[tex] \huge{5.77 \times {10}^{ - 5} m}[/tex]

Explanation:

The wavelength of a wave can be found by using the formula

[tex]\lambda = \frac{c}{f} \\[/tex]

where

c is the speed of the wave

f is the frequency

From the question we have

[tex] \lambda = \frac{3 \times {10}^{8} }{5.2 \times {10}^{ 12} } \\ \\ \\ \\ \large{ = 5.77 \times {10}^{ - 5} m}[/tex]

Hope this helps you

1. Which of the following statements pertaining to the ionic solids represented below are true?
(0)
1.
Both structure are ductile.
II. Structure (1) has a higher melting point than structure (ii)
III. Both structures conduct electricity in the solid state.
IV. Both structures conduct electricity in the liquid state.

Answers

Answer:

B

Explanation:

so A is nosense C and D the question is saying the stament for a being repersentation of solid not whether eletric or not

Explain how magnesium is produced at the negative electrode from molten magnesium chloride

Answers

Answer:

being cation it migerates to cathode to be reduced to elemental magnesium

Explanation:

Mg+2. +2e -----------Mg

Calculate the molecular mass of the element

They give:H=1,AI=27,S=32,0=16,Cu=64,P=31,Mg=24,N=14,Na=23

Answers

Answer:

Mg (NO3)2

24 + 2×(14+ 3×16)

24+2×(14+48)

24+2×(62)

24+ 124

=148g

How to calculate work done with change in volume and pressure.

Answers

[tex]W = \displaystyle \int dW = \displaystyle \int^{V_2}_{V_1} p ~dV = p(V_2 - V_1) = p \Delta V[/tex]

Distinguish between the first, second, and third ionization energies of an atom. b. How do the values of successive ionization energies compare

Answers

Answer:

The third ionization energy is the energy it takes to remove an electron from a 2+ ion. (That means that the atom has already lost two electrons, you are now removing the third.) And 2nd ionization energy is higher than 1st ionization energy, 3rd is higher than 2nd, and so forth.

hope it is helpful :)

Will the things dissolve by themselves over time?​

Answers

When a substance dissolves, it looks like it disappears. But in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution. A solution has two parts. The solute is the solid that gets dissolved.

Answer:

it really depends what they are

Explanation:

What is the meaning of term Amino acid​

Answers

Answer:

Amino acids are molecules that combine to form proteins.

Explanation:

Amino acids are molecules that combine to form proteins. Amino acids and proteins are the building blocks of life. When proteins are digested or broken down, amino acids are left. The human body uses amino acids to make proteins to help the body: ... Repair body tissue.

Hope this helps :)

What is the agent that causes frost wedging?

Answers

Answer:

Freeze wedging is caused by the repeated freeze-thaw. Frost wedging occurs as the result of 9% expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes.

Why do elements in the same group have similar physical and chemical properties

Answers

Answer:

Each element within a group has similar physical or chemical properties because of its atom's outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).

Explanation:

The half-life of Palladium-100 is 4 days. After 16 days a sample of Palladium-100 has been reduced to a mass of 6 mg. What was the initial mass (in mg) of the sample

Answers

Answer:

96mg

Explanation:

Since the half-life of Palladium-100 is 4 days and the sample has been reduced after 16 days, that means the sample has undergone four half-lives. To find the intial mass, just work backwards:

6 x 2= 1212 x 2= 2424 x 2= 48 48 x 2= 96

As you see, I've worked backwards from the four half-lives. So the initial mass after 16 days is 96 mg.

if your going down a hill what type of energy are you making?

Answers

Answer:

Gravitational potential energy - into Kinetic energy

Explanation:

answer is kinetic energy

what is the difference in chemical energy between organic and inorganic materials?

Answers

Answer:

the difference is  the presence of a carbon atom

Explanation:

una pieza de hierro de 25cm3 tiene una masa de 195g cual es su densidad?

Answers

Answer:

Pretend you are a TV producer. Think of ideas for new TV shows. Your objective is to create ideas that will be successful, regardless of whether this is quality programming or not. Think of an idea of a copy. Explain the basics of what this show will be like and what show it is copying. Explain why you feel this show will be popular. Think of an idea of a spin-off. Explain the basics of what this show will be like and what show it is spinning off from. Explain why you feel this show will be popular. Think of an idea for a TV show that falls into one of the genre categories listed in the genre chart. Describe the basics of the show and how it falls under the genre’s expectations for characters, plots, and aesthetics. Explain why you feel this show will be popular.

Complete the sentence.

Atoms form chemical bonds to satisfy the ______
rule and to become _______

Answers

The first one is octet and the second one is stable

How many dozens of silver atoms are in the piece of jewelry?.

Answers

the piece of jewelry contains 5.08x10 21to the power dozen Ag atoms.

What is carbon? What does it do?

Answers

The Short Answer: Carbon is in carbon dioxide, which is a greenhouse gas that works to trap heat close to Earth. It helps Earth hold the energy it receives from the Sun so it doesn't all escape back into space. If it weren't for carbon dioxide, Earth's ocean would be frozen solid.

Oxygen and Oxygen Ionic or Covalent? Defense how do you know

Answers

Answer:

oxygen are covalent bonds because they require 2 more electrons to obtain their octet shell

so when they combine with any other element, they form a covalent bond

Explanation:

Oxygen requires two shared electrons to fill its outermost shell therefore to covalent bonds form.

Please help! Giving 20 points!

Question: How can NASA scientists use Newton's third law of motion to plan for a space vehicle landing on a meteor? Make a claim. Support your claim with evidence from the article. Then, explain why the evidence supports your claim.

Article: https://newsela.com/read/lib-newton-third-law/id/54749/

Answers

Answer:

Explanation:

NASA uses rockets to launch astronauts and supplies to the International Space Station. Launching a rocket relies on Newton's Third Law of Motion. A rocket engine produces thrust through action and reaction. The engine produces hot exhaust gases which flow out of the back of the engine

mark me brainliest :D

mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron. carbon. plastic. glass.

Answers

Iron because iron is the only one magnetic of the three

Mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.

What is iron?

The chemical element iron has the atomic number 26 and the symbol Fe. It is a metal that is found in group 8 of a periodic table and the first transition series. It makes up a large portion of the planet's outer or inner core and is the most prevalent element on Earth by mass, just ahead of oxygen.

It is the fourth most prevalent element in the crust of the Earth, having been mostly deposited by meteorites inside its metallic state, along with its ores. Iron ores must be processed in kilns or furnaces that may reach 5000 °C (2,730 °F) and higher, which is approximately 500 °C (932 °F) greater than the temperature needed to smelt copper. Mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.

Therefore, mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.

To know more about iron, here:

https://brainly.com/question/3299672

#SPJ7

what word describes when tiny droplets of one liquid are finely dispersed within another liquid?

Answers

When tiny droplets of one liquid are finely dispersed within another liquid it is called emulsion.

Emulsion can be defined as the process by which two liquids that are not miscible come together to form a mixture.

The emulsion mixture usually consists of an oil phase and a water phase.

The oil phase appears as droplets when dispersed (mixed with) the water phase.

The uses of emulsion include:

It is used in chemical industries for production.

It is used for production of medicine.

Digestion of fatty food components in the intestine takes place through the process of emulsion.

Learn more here:

https://brainly.com/question/17288119

How often a wave occurs is the wave’s
A. crest.
B. frequency.
C. wavelength.
D. amplitude

Answers

Frequency – The frequency of a wave is the number of waves that pass a given point in a certain amount of time. Frequency is measured in units called hertz (Hz), and is defined as the number of waves per second. A wave that occurs every second has a frequency of 1 wave per second (1/s) or 1 Hz.

An electrochemical cell operates because the electrodes in the two half-cells differ in their electrical potential. A metal electrode composed of ______ reducing agent will have a greater electrical potential to push electrons toward the electrode composed of a ______ reducing agent.

Answers

A metal electrode composed of  strong reducing agent will have a greater

electrical potential to push electrons toward the electrode composed of a

weak reducing agent.

Strong reducing agents are compounds which donates or loses electrons

with a corresponding increase in the oxidation state. Weak reducing agents

can also be referred to as oxidizing agents and they accept the electrons

from the strong reducing agents which results in a reduction in the oxidation

state.

The strong reducing agent has a greater electric potential which aids the

electrons being pushed towards the electrodes with a weak reducing agent.

Read more on https://brainly.com/question/7484765

an atom of ordinary hydrogen consists of an electron and a

Answers

Answer: hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.

Explanation:

An atom of ordinary hydrogen consists of one electron and one proton and zero neutrons.

What is a hydrogen atom?

Hydrogen is a chemical element placed at the top of group 1 in the periodic table and is represented by the chemical symbol H and atomic number 1.

A hydrogen atom is the lightest atom of the element in the whole periodic table. Hydrogen exists as a gas of diatomic molecules having the formula H₂ at standard conditions. Hydrogen gas is tasteless, colorless, odorless, non-toxic, and highly combustible.

Hydrogen is constituting roughly 75% of all normal matter and is the most abundant chemical substance in the universe. Most of the hydrogen element on Earth exists in forms like water and organic compounds.  Each atom of hydrogen (¹H) has one proton, one electron, and no neutrons.

Hydrogen element is nonmetallic and easily forms a single covalent bond with most nonmetallic elements, forming compounds like water.

Learn more about hydrogen, here:

https://brainly.com/question/28060590

#SPJ6

TRUE or FALSE the term “anti-inflammatory” likely means “against inflammation”

Answers

Answer:

True

ANTI MEANS AGAINST

Explanation:

What is q in chemistry.

Answers

Answer:

The reaction quotient!

Explanation:

hope this helped :D

Other Questions
When young Goodman Brown says, "Faith kept me back awhile," he creates what kind of character? Archetypical Euphemistic Allegorical Anecdotal. For the reaction, calculate how many moles of the product form when 0.046 mol of O2 completely reacts. Assume that there is more than enough of the other reactant.2Ca(s)+O2(g)2CaO(s)Express your answer using two significant figures. five factors that affect your health that you can control. five more factors that affect your health but are outside of your control Read these sentences from the text.On April 28, 1967, citing his religious beliefs, he refused induction into the United States Army at the height of the war in Vietnam. Alis refusal followed a blunt statement, voiced fourteen months earlier: I aint got no quarrel with them Vietcong. And the American establishment responded with a vengeance, demanding, Since when did war become a matter of personal quarrels? War is duty. Your country calls; you answer.Based on this evidence, what can you conclude about Alis sense of duty? Ali felt a strong duty to his own personal beliefs. Ali felt a strong duty to his family. Ali felt a strong duty to America. Ali felt a strong duty to help the people of Vietnam. Which sentence incorrectly uses an apostrophe to show possession? A. I left my keys on the coffee shop's counter. B. We should visit The Fisherman's Warf. C. The school librarian checked out many book's for Stephanie. The ratio of students in Class X to Class Y is 2 : 5. There are 24 more students in Class Y than Class X. How many students must transfer from Class Y to Class X so that both classes have equal number of students? evaluate the function h(x) = |-2x|-9 for the given values of x a) h(4)=. b) h(-5)=. c) h(0) = The distribution of number of hours worked by volunteers last year at a large hospital is approximately normal with mean 80 and standard deviation 7. Volunteers in the top 20 percent of hours worked will receive a certificate of merit. If a volunteer from last year is selected at random, which of the following is closest to the probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 ?. 100 if u get this right ty have a nice day! Teddy1House A is twice as tall as House B. How tall is House B?HouseHeight (ft)A24B Sapatra spent $80 at Mr. and Mrs. Crab. She left a tip of 20%. How much was the tip she left? A machine cuts a strip of carpet into 2 pieces. the length of the smaller piece is 5 meters greater than 1/4 the length of the larger piece. If the length of the smaller piece is 12 meters, the length of the bigger piece is (A, 13.5 B, 14 C, 20 D, 28) meters and the total length of the carpet is (A- 25.5, B- 26, C- 32, D- 40) meters Which sources would be appropriate to use for an academic essay on Frederick Douglass?Check all of the boxes that apply.a free encyclopedia written by anonymous volunteersa biography of Frederick Douglass from the Library of Congress in Washington, DCan anonymous blog that provides facts on different topics, including Frederick Douglassa digital copy of an issue of The North Star, Frederick Douglasss abolitionist newspaperan autobiography that Frederick Douglass published in 1845 PLS WHAT IS THE REAL ANSWWR ASAP Assessment started: undefined.Item 1Which equation is correct?52 7 = 50 7 + 2 752 7 = 50 + 2 752 7 = 500 7 + 2 752 7 = 50 7 + 2 Hi again could you help me please Find the area of the composite shape. g(t) = (t-10) (t+1)1) What are the zeros of the function? of the three lines in the graph one has slope m = 1 one has slope m = 2, and one has slope m = 1/5. Put the lines in order from greatest to least slope. Given isosceles AHIJ where HIIT, MZH = (3x + 10)", and mZ1 = (6x 20)", find the measures of angles H, I and J. Simplify (5p+1.49)-(2p+6.49)Thank you!