Chemistry High School

Describe Connections in a Text
Describe the connection between coal power and nuclear power from Turn on the Power. Use the
ideas from the Compare Ideas in a Text activity to describe how the ideas are alike and different.
Coal power and nuclear power are
alike because they both...
Coal power and nuclear power are
different because coal power...
and nuclear power...

Describe Connections In A TextDescribe The Connection Between Coal Power And Nuclear Power From Turn

Answers

Answer 1

Answer:

thanks

Explanation:

Related Questions

What is the ratio of the effusion rate of the helium to methane? (round to hundreds)

Answers

Answer:

2.00

Explanation:

From Graham's law; the rate of effusion is inversely proportional to the square root of the relative molecular mass.

Let the rate of effusion of Helium be R1

Let the rate of effusion of Methane be R2

Let the molecular mass of Helium be M1

Let the molecular mass of Methane be M2

Hence;

R1/R2 = √M2/M1

R1/R2 = √16.0294/4.0026

R1/R2 = 2.00

There are 12 inches in 1 foot and 2.54cm in 1 inch. How many feet are in 325 cm?

Answers

Answer:

27.0833 feet

Explanation:

What is the atomic mass of an atom that contains 28 protons, 28 electrons, and 30 neutrons?
86
28
58
56

Answers

you add (only) the protons and neutrons, so the answer here is 58

What ion does sodium (Na) form

Answers

Probably ion with a positive 1 charge.

Explained briefly

How does ocean currents affect climate i need it in 8 sentences.

Answers

Ocean currents move both warm and cool water across many miles. Warm water can be carried to a cooler place like Alaska. It can bring warmer temperatures as well as warmer water to Alaska. Just like the warm water, cold water can do this as well. If cold water moves from Alaska to The Gulf of Mexico, it can cause the water and air to cool. As air travels over the ocean water vapor can condense into it. The current’s flow depends on what variables are in play. There are many different currents that connect together to heat up and cool off as they move.

1. Why do scientists study fossils? *
(25 Points)
O a to learn how the planet was formed
O b. to study how organisms changed over time
O c. to observe how drought affected the landscape
O d. to understand how weathering affect rock layers

Answers

B is the correct answer

Thermal energy is added to water to raise the temperature to 250F.
Which of the following models BEST describes the movement of the particles after the thermal energy is added?

Answers

Answer:A

Explanation:the water will start to boil representing the yellow particles.

Answer:

A

Explanation:

Lol I'm doing the test right now and I have notes

3) What are the three types of sedimentary rocks?

Answers

Answer:

clastic, organic, and chemical

what is a rule for determining the mass number of an atom or ion​

Answers

Answer:

The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

sorry if im wrong

Explanation:


How is temperature related to the physical change of a
substance?

Answers

Answer:

Temperature is a measure of the kinetic energy of particles in a substance. As temperature increases, the atoms or molecules in a substance gain energy.

Explanation:

describe the behavior of the molecules in a liquid. Explain this behavior in terms of intermolecular forces.

Answers

What are intermolecular forces?

The term “INTERmolecular forces” is used to describe the forces of attraction between atoms, molecules, and ions when they are placed close to each other.

In liquids, particles are quite close together and move with random motion throughout the container. Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.

In a liquid, intermolecular attractive forces hold the molecules in contact, although they still have sufficient KE to move past each other. Intermolecular attractive forces, collectively referred to as van der Waals forces, are responsible for the behaviour of liquids and solids and are electrostatic in nature.

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6. In photosynthesis, plants use carbon dioxide and water to
produce oxygen and glucose. How many grams of water are
needed to produce 75 grams of glucose?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
a. 45grams
b. 90grams
c. 108 grams
d. 180grams

Answers

The answer should we be 90 g
Oh you is you are in a serious I love you bye

Should the organism be considered a life-form?

Answers

Answer:

It is a synonym for "life form". Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. ... Fungi, animals and plants are examples of kingdoms of organisms within the eukaryotes.

So yes, it should

Explanation:

Your sick puppy is diagnosed with roundworms. They grow inside of the puppy. What type of symbiotic relationship do the puppy and the roundworms have?

A. Cooperative
B. Commensalism
C. Mutualism
D. parasitism

Answers

D. Parasitism , the roundworm benefits from the relationship, but the puppy is harmed

A student is making lemonade. He added 5 g of lemonade mix to a container of water. The student then weighed the container with the lemonade. The total weight was 23 g. The empty container weighed 8 g after all the lemonade was gone. How much did the water weigh? O A. 38 B. 108 C. 158 OD. 18 g RESET Arianna Thomas, ID#* *87 Growth: Science 6+ GA 2016 Question # 11​

Answers

23-8=15. Then you subtract the weight of the lemonade mixture (5) from the amount of combined weight (15) in order to get your answer (10). Hope this helps!

When elements bond, what is the part of the atom doing the bonding?

Answers

Answer:

the  valance electrons

Explanation:

Heeeeeellllppp, Iiiimmm sssooo stttuuuccckkk!​

Answers

Answer:

I think it would be D. None of the above

Explanation:

why I think this is because none of the answers really adds up to it

how do i word a formal letter to a teacher saying i didn't pay attention during the science lessons and i now have no idea what to do? by the way, this is on edge so i haven't been on a call, or met my teacher in person.

Answers

Explanation:

Hello mr/mrs (name) I unfortunately couldn't pay attention to the class due to some issues I had therefore I don't know what we are doing in class

OR

Hello mr/mrs (name) I could understand what we were doing in class I would like it if you could break it down more or explain better to me

OR just say something it had something to do with your internet such as

Hello mr/mrs (name) I didn't understand what you were saying during our class due to some of my internet issues I was have throughout the day. I hope you can explain what we did during the class.

Those may be some of my excuses I've used before

they have worked for me:)

I don't know if that helped?:/

What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?

Answers

Answer: 322.56 Kelvin

Explanation:

Use the Ideal Gas Law

[tex]PV=nRT[/tex]

R is the gas constant

T is the temperature in Kelvins

P is the pressure in atmospheres

V is the volume in liters

n is the number of moles of gas

First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.

[tex]751.2mmHg (torr) =0.988atm[/tex]

Now plug everything in

[tex](0.988)(26)=(0.97)(0.0821)T\\T=322.56K[/tex]

4. Which chemical formula below contains 2
different elements?
A. CO
B. Fe2O3
C. C2H4
D. All of the above

Answers

All of the formulas have two elements formula one has Carbon and Oxygen, Formula two has Iron and Oxygen, formula three has Carbon and Hydrogen.

The chemical formula of CO, Fe₂O₃, and C₂H₄ contain atoms of two different elements. Therefore, option (D) is correct.

What is the chemical formula?

A chemical formula provides information about the chemical proportions of atoms of each element that are present in a molecule or chemical compound. The chemical formula can be represented by using chemical symbols of elements, numbers (subscripts), and other symbols, such as commas, dashes, brackets, and plus (+) and minus (−) signs.

A chemical formula of a compound has no words but can be written in certain simple chemical structures. Chemical formulae can be more limited in power than chemical names and structural formulae. There are two kinds of chemical formulas in which one empirical formula and another molecular formula.

In the chemical formula of carbon monoxide (CO) has carbon and oxygen two different elements. In the chemical formula of iron oxide (Fe₂O₃)  iron and oxygen are two different elements. In the chemical formula of ethane (C₂H₄ ) has carbon and hydrogen two different elements.

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When a comet enters the solar system, it curves toward the sun. Which statement describes why the sun does not move when a comet is nearby?

Answers

Answer:

Explanation:

When a comet enters the solar system it curves towards the Sun due to the Sun's gravitational pull. Every celestial object in the universe has a gravitational pull whose force is dependent on the object's mass. The larger the object is the more gravitational pull it will have. The Sun is the largest object in our Solar system and therefore has the most gravitational pull. This is why the comet curves toward the Sun, but the opposite does not happen because the comet's gravitational pull is not strong enough to pull the Sun.                  


(e)
Calculate the mass of one atom of sodium.
Use the equation:
relative atomic mass
mass of one atom of sodium =
Avogadro constant
Avogadro constant = 6.02 x 1023
Give your answer to 2 significant figures

Answers

Answer:

3.82 × 10 ^-23 g

Explanation:

6.02 x 10^23atoms = 1 mole of sodium

1 atom = 1/(6.02 x 10^23) mole

mass = mole × molar mass

= 1/(6.02 x 10^23) × 23

= 3.82 × 10 ^-23 g

Electrotonic configuration of potassium 19K ion equal the Electrotonic configuration of

1) ⁸0

2) ¹¹Na

3) ¹⁸Ar

4) ¹⁷C1​

Answers

3) 18ᴀʀ
Hope this helps!!!!!

Name ways we use technology in inner and outer space
8th grade science btw

Answers

Answer:

Explanation:

Many common everyday services such as weather forecasting, remote sensing, satellite navigation systems, satellite television, and some long-distance communications systems critically rely on space infrastructure. ... Of the sciences, astronomy and Earth science benefit from space technology am in 6th grade btw

What is the freezing point of solution that has 185.25 grams of Ca(OH)2 (formula mass = 74.1) dissolved in 2,500 grams of water at standard pressure?

Answers

Answer:

The freezing point depression ∆T = KF·m where KF is the molal freezing point depression constant and m is the molality of the solute. Rearrangement gives: mol solute = (m) x (kg solvent) where kg of solvent is the mass of the solvent (lauric acid) in the mixture. This gives the moles of the solute.

Explanation:

Does this help at all??

How to convert the mass of a substance to the number of moles of a substance, and moles to mass

Answers

Answer:

Explanation:

To convert the mass to moles, divide the mass by the atomic weight of the element or compound.

To convert back to mass from the moles, multiply the moles by the atomic weight of the element or compound

5) A change in the chemical properties of a substance results in _________. *

a change of state
the same substance
a new substance

Answers

Answer:

a new substance

Explanation:

because it is chemival

Chemical change results in one or more substances of entirely different composition from the original substances.please mark brainliest if correct :)

why aren't granite, copper, or petroleum found everywhere on earths surface

Answers

Answer: The distribution of natural resources depends upon many physical factors like land, climate and altitude. The distribution of resources is unequal because these factors differ from place to place on this earth.

Many physical factors, such as land, climate, and altitude, influence the distribution of natural resources. Because these factors differ from place to place on this planet, the distribution of resources is unequal.

What is earth surface ?

The Earth's surface is defined as the part of the water or land that comes into contact with the air above it. The surface is the part of the Earth with which we interact. The crust is the rock layer that surrounds the Earth's mantle. The crust encircles the entire planet, including the ocean floor.

The crust is the planet's surface, where we live; it's actually a very thin layer, only 70 kilometers thick at its thickest point.

Petroleum is formed by the same geological process that creates sedimentary rock. The geological processes that create rocks and natural resources such as granite and copper do not occur everywhere on Earth and take a long time to form. This explains why granite and copper aren't found everywhere on the planet.

Thus, Because these factors differ from place to place on this planet, the distribution of resources is unequal.

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A solution has [H+] = 7.65*10^-3 what is the [OH-] in the solution?

Answers

Answer:

The hydroxide ion concentration in an aqueous solution, [OH-], in mol L-1, can be calculated if the pOH of the solution is known.

pOH is defined as the negative logarithm (to base 10) of the hydroxide ion concentration in mol L-1 pOH = -log10[OH-]

Explanation:

Identify the element that can be found in the 5th period and 4th group on the Periodic Table.

As
Zr
Sn
V

Answers

it would be Zr (transition metals)
Other Questions
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You may use the map in your science kit, or you can find a map on line.Materials NeededMap of North America one is included in your science kit OR you may use one found online.Helpful lessons: 1.04, 1.07, 1.11, 1.13. Use our class slides to help you find information. You may still need to research more information. Links to slides are found in theChoose one city from the list belowVancouver, CanadaLos Angeles, CaliforniaMiami, FloridaAlbuquerque, New MexicoBismarck, North DakotaIntro Information (Worth 3 points)My city: ______What is the latitude of your city? _______________The suns heat does not warm the Earth evenly. Areas near the equator are the hottest, and the further away you get from the equator in either direction (north or south) the cooler it gets.In your own words answer this: If 0 latitude is hot and 90 latitude is cold, would you predict the weather in your city to be relatively warm or relatively cool? Why?__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Based on the latitude/location of your city answer the questions using complete sentences. Remember, weather is the day-to-day conditions of a place. Climate is the average weather conditions of a place over a period of years. You are to examine and discuss the climate of your city.The Earth is unevenly heated by the sun due to the sun hitting some areas more directly than others.How does that impact the temperatures in your city? 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What is the best explanation for how both processes use these substances? FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (30pts)