The table below lists the naturally occurring isotopes of element X. Calculate the average atomic mass.

Mass of isotope Relative abundance
15.33 amu 28.60%
17.26 amu 13.30%
18.11 amu 58.10%


A) 17.65 amu
B) 17.11 amu
C) 16.90 amu
D) 17.20 amu

Answers

Answer 1

Answer:

D

Explanation:

I think it is D


Related Questions

It's football season! Big Bubba Brown is running full speed trying to tackle the quarterback before he throws the ball. Wham! He got him! What happens to Big Bubba Brown?
A. Bubba uses all of his energy to tackle the quarterback.
B. Bubba and the quarterback lose their energy and fall to the ground.
C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
D. Bubba knocks the quarterback down and keeps running at the same speed as before the tackle.

this is science btw.

Answers

Answer:

C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

Explanation:

I majored in Science

Answer:C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

just did the usatestprep  

The
tell
you which element it is.
Atoms of the same element with a different number of NEUTRONS are
Atoms of the same element with a different number of ELECTRONS are
The PROTONS and NEUTRONS Can/Can't leave an atom during a
chemical reaction. The Electrons Can/Can't leave an atom during a
chemical reaction.
In a balanced atom, the
equal the

Answers

Answer:

Isotopes

Explanation:

Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons. Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties.

true or false: Gravity plays an important role in the formation of stars.

Pls help fast???!!!!

Answers

Answer:

the the answer iss ( true )

constrast a mixture and a compound , how are. they different?​

Answers

Answer:

A mixture is composed of two or more elements or compounds in a non-fixed ratio, which means you can vary the amount of substance in a mixture. A compound is composed of two or more elements in a fixed ratio, so you cannot vary the amount of each element in a compound

Answer:

mixture retains property of combing substances while compound has new properties that are different from combing elements...

can be separated by physical means whereas compounds can be separated by chemical or electrochemical methods

(HELP) how can you make the metal chair less cold when you sit on it?

Answers

Answer:

metal can hold heat keep it near fire

6. What are formed from the chemical reaction of the substances given
below? Write the balanced chemical reaction as well.
a) when calcium carbonate and hydrochloric acid react with eachother

Answers

CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

Question 8

Using Henry's Law: Sz/P1-S2/P2
To increase the solubility of a gas at constant temperature and 202kPa pressure from
0.85g/L to 5.1g/L, the pressure would have to be increased to:
A.505kPa
B.17.2kPa
C.606kPa
D.1212kPa

Answers

Answer:

D

Explanation:

plug the numbers

Which of the following is true about daughter cells?
A
They are genetically identical.

B
They each have their own nucleus.

C
They will most likely undergo mitosis.

D
all of the above

Answers

d. all of the above

AnswerD:

Explanation:

Thermal expansion occurs when particles of matter move farther apart as temperature increase. True or false ?

Answers

Answer:

true

Explanation:

What is the VSEPR shape of BHI2?

a.) bent
b.) trigonal planar
c.) trigonal pyramidal
d.) tetrahedral
e.) linear

Answers

Answer:

The answer is B

Explanation:

honestly do

Is it okay if you help me? I'm kind of in a tight spot here. Tysmmmmmmmmmmmmm o(❁´◡`❁)o!!

Answers

Answer:

Not sure, but I think ot is chemical bonds because chemical potential energy are stored energy in a chemical bond. Hope this helps, thank you !!

Thomson concluded that .......
A- electrons must be parts of the atoms of all elements
B- Electrons are not parts of the atoms of all elements
C-None from the previous​

Answers

Answer:

A. electrons must be parts of the atoms of all elements

A 15.0 g piece of graphite is heated to 100.0°C and placed in a calorimeter. The
graphite releases 815.1 J of heat to reach a final temperature of 23.9°C. What is
the specific heat of graphite?

Answers

Answer:

0.714Jg^-10C^-1.

Explanation:

According to specific heat capacity, the specific heat of graphite is -0.714 J/g°C.

What is specific heat capacity?

Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.

It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.

It is given by the formula ,

Q=mcΔT

In the given example, it is calculated as, c=Q/mΔT

Substituting values in above equation, c= 815.1/15×(-76.1)

c=-0.714 J/g°C

Thus, the specific heat of graphite is -0.714 J/g°C.

Learn more about specific heat capacity,here:

https://brainly.com/question/1747943

#SPJ2

Fill in the blank...
Each element is made up of only one kind of ________

Answers

Each element is made up of only one kind of atom.

Which of the following is a limitation of using a model to study a natural event?
A.
The results of a model event are often much more accurate than those of the actual event.
B.
The model and the results it generates will have no relation at all to the actual event.
C.
The size and design of the model will be too similar to the actual event.
D.
The results of a model event may not be similar enough to the results of the actual event.

Answers

Answer:

D

Explanation:

why i say that is because take for example a volcano, when you make a model, you'll see what takes place in a real eruption but in real life the lava would burn things in its path, the model volcano may not. That's just an example

Answer:

D

Explanation:

I got it right on study island

What is the Lewis dot diagram for GaF3

Can someone help me

Answers

Answer:

View attached image

Fire ants move in to a new environment with the lizards.what will most likely happen to the lizard population over the next several years

Answers

Answer:

Some lizards in the eastern U.S. have adapted to invasive fire ants -- which can bite, sting, and kill lizards -- reversing geographical trends in behavioral and physical traits used to avoid predators. A new study describing this reversal appears online on November 29, 2018, in the journal Global Change Biology and reveals that new environmental challenges can override the historical influences that originally determined geographical trends in traits.

"Rapid environmental change, be it from changing climate or the introduction of invasive species, is putting a lot of pressure on native species," said Christopher Thawley, graduate student at Penn State at the time of the study and first author of the paper. "Usually when researchers look at how native species might respond to these kinds of threats, they might measure one characteristic of the animal and at one or a few sites. In this study, we looked at three separate characteristics of eastern fence lizards from thirteen sites spanning a thousand miles and found that these lizards are capable of adapting in a concerted way to meet the threat of invasive fire ants, and in a relatively short time frame."

Explanation:

You're leaving a carnival and you're pumped because a clown just handed you a red, helium- filled balloon. But then, something tragic occurs. You hear the ice cream truck, jump with joy doing a 180 degrees in the air, and you lose grip of your beautiful balloon. Upward it flies as you stare speechless into the sky. Why did this helium balloon fly away instead of falling to the ground like a balloon filled with your breath usually does?

Answers

Because the helium inside it is lighter than air , hence it rises up
The balloon from our breath contains carbon dioxide which is heavier than air so it doesn’t rise

Which of the following is considered a dilute solution? Choose all that apply.
Very sweet tea
Contact lens solution
Tide pods (laundry detergent)
Swimming pool water

Answers

Answer:

Very sweet tea

Explanation:

yeah... because sweet tea can cause tooth decay in our mouth thats why...(Please check the other answers also...Its all my point of view....thank you)

2 NaOH + H2SO4 ------> 2 H2O + Na2SO4
How many moles of H2O can be produced from 12.5 moles of NaOH?

Answers

Explanation:

2moles of NaOH -> 2moles of H2O

so the number of moles r equal.

hence moles of H2O is 12.5

How many electrons are transferred when Be and O bond?
02
0
3
4.

Look at picture
ASAP please will mark as brainlist don’t got much time

Answers

Answer:

2 electron are transferred when Be and O bond formed

Answer:

2 is the answer:)))))))))

SCIENCE
Does combustion need oxygen?

A. Yes
B. No

Answers

Answer: a. Yes

Explanation:

Answer:

A. yes

Explanation:

In order to burn this fuel, oxygen is needed, as it is with any fire. The waste products from the combustion process are water and carbon dioxide. Thus, we breathe because oxygen is needed to burn the fuel (sugars and fatty acids) in our cells to produce energy The air we breathe contains about 21% oxygen.

HELP ME PLEASE!!!
One liter of water is cooled from 20°C to 3°C inside a refrigerator. What is the change in temperature in °F? K?

Answers

Answer:

Decrease of temperature by 62.6°F and 290.15°

Explanation:

First identify change in C: 17 degrees

now convert to Fahrenheit and Kelvin

Fahrenheit: 17 * (9/5) +32 = 62.6°

Kelvin: 17 + 273.15 = 290.15°

Escoge uno de los derechos de la siguiente lista que están Escogidos en el código de la niñez y adolescencia escribe en una hoja porque es importante que se garantice el derecho que escojiste SI requiere ampliar la información REVISA "el código de la niñez y la escencia"​

Answers

Answer:

Hehe I don't know spanish -

Explanation:

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

Answers

The question is incomplete, the complete question is;

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

A: The coolest layers are farthest from the core.

B: The least dense layers are closest to the core.

C: The layers with the highest concentration of metals are closest to the crust.

D: The layers that remain in a molten state are closest to the crust.

Answer:

The coolest layers are farthest from the core.

Explanation:

When we talk about the internal structure of Earth, we mean the subdivisions of the solid Earth, that is, the concentric spherical layers that marks out the structure of the solid Earth.

The inner core is the innermost part of the earth's core and is known to have extremely high temperature. This high temperature steadily decreases as you approach the earth's surface.

Hence, the coolest layers are farthest from the core.

biology and physics are so closely related that sometimes the fields overlap. what experiment might both biologist and physicists do

Answers

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

a p ec


You arrive at English class 45 seconds after leaving math which is 100
meters away. How fast did you travel?

Answers

Answer:

4.97097

Explanation:

You traveled 4.97097 mph.

hi too all that read this sub 2 to jelly​

Answers

Answer:

I already am

Explanation:

4. Describe the movement of the water molecules at cold temperatures.

Answers

Answer:

Point out to students that molecules of hot water are moving faster and are slightly further apart. The molecules of cold water are moving slower and are a little closer together. If students do not notice a difference, move the slider all the way to the left again and then quickly to the right.

2. How do molecules move in cold water?

Compare the speed of molecules in hot water compared to molecules in cold water? Water molecules move faster in hot water and slower in cold water. water molecules in cold, room temperature, and hot water. most of the liquid.

Help me please an thank you

Answers

Molecular formula

hope that helps^^

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