PLEASE HELP ASAP How many moles are there in 2.25 x 10^25 atoms of Zinc?

How many atoms are there in 9500.0 mg of Fluorine?

Answers

Answer 1

Answer:

There are 6.023 x 10^23 fluorine atoms.

Explanation:


Related Questions

Which of the following best describes the impact of glaciers upon the surface of the earth?
a.
Ice buried continents under a few hundred feet of ice.
b.
Glaciers scraped across the surface and altered landscapes and the course of rivers.
c.
The passage of glaciers created new ecosystems.
d.
All of the above.

Answers

Answer:

New Answer is : B - Glaciers scraped across the surface and altered landscapes and the course of rivers.

Explanation:

Edge 2020

The impact of glaciers on the surface is that glaciers scraped across the surface and altered landscapes and the course of rivers.

What is a glacier?

A glacier refers to a heap of ice that has stayed there for a large number of years. The earth is filled with many glaciers and about 90% of fresh water are trapped in glaciers.

The impact of glaciers on the surface is that glaciers scraped across the surface and altered landscapes and the course of rivers.

Learn more about glaciers: https://brainly.com/question/14309099

Please help!
The ________ the handle of a wrench, the _________ the mechanical advantage.

longer, greater

shorter, greater

shorter, less

shorter, less

Answers

Answer:

longer, greater;

Explanation:

This is more of a physics question. Refer to any notes you might have on simple machines. In short though, a wrench with a longer handle requires less force to be used than a wrench with a short handle. As a result it has more mechanical advantage.

The answer "shorter, less " could also be correct but it's listed twice so I wouldn't pick it.

Answer:

long,great

Explanation:

carbon has 4 electrons in the outer shell .how does carbon attain stable electronic configuration!if ur answer it 21 points + i wil mark as brainlist so dont miss it​

Answers

Answer:

through covalent bond

What was the time frame?

500 Million Years Ago

900 Million Years Ago

650 Million Years Ago

4.6 to 4 Billion Years Ago

Answers

Answer:

If you are referring to the Precambrian time, the answer is 500 Million Years Ago.

Explanation:

Precambrian time is the time period that started with the formation of Earth and ended about 500 million years ago.

Base your answers to questions on the food web below and on your knowledge of science. Answer each part below. A. Which organism labeled in this food web provides energy, either directly or indirectly, to all of the other organisms? Explain why this is your answer. B. Explain why the amount of food available to the slug population might increase if the aphid population decreased.

Answers

Answer A:

The organism which provides energy directly and/or indirectly to all of the other organisms is the garden plants.

Explanation:

Plants are generally found at the lowest part of the pyramid/food chain. They are also called Autorotrophs because they are the primary producers of energy from which the entire pyramid feeds off.

The other animals/organisms on the pyramid are called Heterotrophs because they depend directly or indirectly on the primary energy producers.

Answer B:

The Slug and the Aphid feed are herbivorous. So they are in competition for the garden plants. If one of them, for some reason, decreased in population, the other will have more food to eat.

Cheers

Question
Which two of these options does the transfer of light energy require?
A. Magnetic fields
B.Electric fields
C. Gravitational forces
D. Geometric figures

Answers

Answer: A,B

Explanation:

Answer: A. Magnetic fields

             B. Electric fields

Explanation:

Using dimensional analysis How many mg are there in 8.75 X 107 kilograms?
Conversion factors:
[1000 g = 1 Kg]
[1000 mg = 1 g]
Can you please show the work

Answers

Answer:

8.75×10¹³ mg

Explanation:

From the question given above, we obtained:

Mass (in Kg) = 8.75×10⁷ Kg

Mass (in mg) =?

Next, we shall convert 8.75×10⁷ Kg to grams (g). This can be obtained as follow:

1 Kg = 1000 g

Therefore,

8.75×10⁷ Kg = 8.75×10⁷ Kg × 1000 g/1 kg

8.75×10⁷ Kg = 8.75×10¹⁰ g

Therefore, 8.75×10⁷ Kg is equivalent to 8.75×10¹⁰ g.

Finally, we shall convert 8.75×10¹⁰ g to mg. This can be obtained as illustrated below:

1 g = 1000 mg

Therefore,

8.75×10¹⁰ g = 8.75×10¹⁰ g × 1000 mg/ 1 g

8.75×10¹⁰ g = 8.75×10¹³ mg

Thus, 8.75×10⁷ Kg is equivalent to 8.75×10¹³ mg.

Why are journal articles important in the spread of scientific knowledge?


Help me pls guy’s

Answers

Answer:

When published, each article expands the library of scientific literature available to all scientists and contributes to the overall knowledge base of the discipline of science. They report new research for the first time.

Describe how the organelles in a cell work together to keep an organism alive​

Answers

Answer:

These organelles are like the organs in a human and they help the cell stay alive. Each organelle has it's own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. ... All of the cell's organelles must work together to keep the cell healthy.

Explanation:

These organelles are like the organs in a human and they help the cell stay alive. Each organelle has it's own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. ... All of the cell's organelles must work together to keep the cell healthy.

4. Which of the following
is an example of a
heterogeneous mixture?
a, tea
b. oxygen
c. pizza
d. water

Answers

Answer:

water

Explanation:

Answer:

c. pizza

Explanation:

Pizza is a heterogeneous mixture because it components are not uniform.

newto 's first law of motion states than an object motion will not change unless blank ​

Answers

newton's first law of motion states than an object motion will not change unless subjected to an external force.

Can somebody please explain the heat formula to me? q=mcΔt
Thank you!!

Answers

Answer:

Explanation:

It describes how much heat must be added to a unit of mass of a given substance to raise its temperature by one degree Celsius. ... The mass m, specific heat c, change in temperature ΔT, and heat added (or subtracted) Q are related by the equation: Q=mcΔT.

Answer:

The formula q=mcΔt explained below

Explanation:

so q represents the amount of heat energy. M is the mass of the object and c is the temperature of the object. Δt also known as delta is the change in temperature. It would be the final temperature minus the original temperature.

kinetic energy is energy that an object possesses because of its

Answers

Kinetic energy is the energy possessed by an object due to its motion. If an object is moving, then it has kinetic energy. If an object has kinetic energy, then it is moving. Many students confuse kinetic energy with potential energy.

why plastic do not rust​

Answers

Answer:

it can't rust simply because it doesn't contain any iron or any of it's alloys. In fact, not even all metals rust.

Explanation:

An ion has an overall charge of -2. Its the nucleus is made up of 29 protons and 35 neutrons. How many electrons does the atom have?

Answers

Answer:

31 electrons.

Explanation:

Atoms initially have a neutral charge. So if this atom were neutral, it would have 29 electrons to balance out with the 29 protons. Protons are never added or removed. Since this atom has a -2 charge, that means it is an anion with 2 additional electrons. 29e- + 2e- = 31e-

what is the significant figures of 12.00

Answers

There are 4 significant figures

what is meant by the Terrestrial and Hydrologic parts of Earth?

Answers

Not sure what you exactly mean, but I think what you are talking about are the spheres of earth (Lithosphere, Hydrosphere, Atmosphere, and Biosphere.)

Lithosphere (Terrestrial) is the land on earth. Hydrosphere (Hydrologic) is the water on earth.

I'm not sure if this is 100% correct but I'm guessing this is what you are referring to. It could be different across different science classes.

The difference between a mixture and a solution is that mixtures cannot be easily separated. True O False.​

Answers

Answer:

False

Explanation:

Mixtures are a solute and solvent that are not chemically combined, therefore easily separated. Solutions are a solute and solvent combined together.

Can an organism be made of only one cell?

Answers

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.

Is neon magnetic ? Also what id its freezing point?

Answers

Answer:

diamagnetic -415.5 degrees F so yea on the magnetic part

Explanation:

plss



tell
the


ans







.............​

Answers

Answer:

b option will be the answer because in b option the light rays are coming in the eyes and you will be able to see the thing written on the sheet of paper

i hope you got it if yes please mark it as brainliest

wich organelle is found in photosynthesis organisims and caprures energy from the sun​

Answers

Plastid is the organelle that can the substance. chlorophyll that performs photosynthesis

Convert the following 2856 m(meters) to km(kilometers)Immersive Reader
a. 2,856,000 km
b. 2.956 km
c. 28.56 km
d. 0.02856 km

Answers

Answer: 2.856km

Explanation: 1000m = 1km

2856m / 1000 = 2.856km

Extended networks of pi bonds can cause a delocalization of electrons. Explain how this occurs.

Answers

The answer is: Electrons are shared in each pi bond. If the pi bonds flip back and forth between the adjacent p-orbitals on the two sides of an atom, the shared electrons in the p-orbitals can become delocalized.



Hope this help

Electrons in pi bonds can spread over a group of atoms. This is what is meant by delocalization of a pi bonded network.

There are two kinds of bonds in chemistry, these are;

Sigma bondsPi bonds

Sigma bonds are formed by end to end overlap of atomic orbitals while pi bonds are formed by side by side overlap of atomic orbitals.

Sometimes, pi orbitals are well oriented in such a way that electrons are spread over the pi orbitals of several atoms. For instance, in benzene, there are six pi electrons that are spread over the six carbon atoms in benzene. This is what is meant by delocalization.

Delocalization can only occur when there is are conjugated double bond. This is why delocalization is common in many aromatic compounds. Some inorganic ions such as CO3^2- also have delocalized pi electrons.

Learn more: https://brainly.com/question/2286339

Calculate the average atomic mass of a
sample of lead that is 24.1% lead-206
(205.974 amu), 22.1% lead-207 (206.976 amu)
and 53.8% lead 208 (207.977 amu).

Answers

Answer: 207.217 amu

Work:

203.973 amu *(0.014) = 2.855 amu

205.974 amu *(0.241) = 49.639 amu

206.976 amu *(0.221) = 45.741 amu

207.977 amu *(0.524) = 108.979 amu

2.855 + 49.639 + 45.741 + 108.979 = 207.217amu

Explanation:

The average atomic mass has been defined to be the total mass given by the relative abundances and masses of the isotopes. The average atomic mass of lead is 204.359 amu.

What is average atomic mass?

The average atomic mass has been given by the masses and relative proportions and abundances of the isotopes of the elements that differ from the mass of the element in the periodic table. It is the average mass given by the sum of the masses and the abundances.

Given,

Abundance of lead-206 = 24.1%

The abundance of lead-207 = 22.1%

The abundance of lead-208 = 53.8%

Mass of lead-206 = 205.974 amu

Mass of lead-207 = 206.976 amu

Mass of lead-208 = 207.977 amu

The average atomic mass is given as:

= (205.974 × 0.241) + (206.976 × 0.221) + (207.977 × 0.524)

= 49.639 amu + 45.741 amu + 108.979 amu

= 204.359 amu

Therefore, 204.359 amu is the average atomic mass.

Learn more about average atomic mass, here:

https://brainly.com/question/13753702

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If 96.5 grams of gold has a volume of 5 cm, what is the density of gold?

Answers

It’s a good birthday bro bro you bro don’t bro you know bro bro yeah tot

they are located between each of the atrium and ventricle to prevent blood from flowing backwards, what is it?​

Answers

Valves, they push blood forward

Jose completed an observational investigation to determine how many butterflies visited his garden each hour for one day Which option best explains why would Jose choose to complete an observational investigation?
He was able to count the number and type of butterflies that visited the garden,
He was observing the behavior of butterflies and could not control the variables
O He wanted to test how he could increase the number of butterflies visiting his garden
He was able to create a model of his garden showing the location of flowers and butterflies.

Answers

Answer:

He was able to count the number and type of butterflies that visited the garden,

Explanation:

50 Points!! 25 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!

Answers

Answer:

1:f 2:a 3:c 4:e 5:c 6:d 7:b 8:f 9:a 10:d 11:c 12:c 13:b

Explanation:

In humans, having freckles is dominant over not having freckles. Andrew does not have freckles. What is his genotype for freckles? A) ff B) FF C) fF D) Ff​

Answers

its A because since freckles are dominant, you cant have any dominant genes in the genotype.

Answer:

A)ff

Explanation:

its A bc, how you would write a dominate trait for having freckles is FF and how you would write a ressive(cant spell that word sorry) trait for having freckles is ff. if Andrew does not have freckles then he is a ressive, ff. and also my teacher told me that u always write a dominate trait before a ressive trait unless u r doing a tri hybrid cross or something else.

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