Chemistry Middle School

Energy can be neither created nor destroyed. This fact means that even though energy sources can be depleted (used up), the energy in them is not destroyed. Instead, it is transformed to other forms of energy. And almost all energy resources here on Earth can have their energy traced back to the Sun’s gravitational or light energy.

Electricity is often thought of as a secondary source of energy because it must be gained by transforming some other kind of energy (a primary source). Think about where the electricity generated by a wind turbine comes from. Describe the path that wind energy takes from the Sun’s light to electricity.
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Answers

Answer 1
The heating of the Earth's surface and atmosphere by the sun drives convection within the atmosphere and ocean. This convection produces winds and ocean currents. The greater the pressure differences between a low-pressure area and a high-pressure area, the stronger the winds.
Hope this helps :)
Answer 2
The path is through a primary source and through a source of energy

Related Questions

When a force on an object becomes stronger, how does its motion change?

The object produces less friction.
The object gradually stops moving.
The motion of the object reduces.
The motion of the object becomes greater.

Answers

Answer: The motion of the object becomes greater.

I think it is D not to sure pls don't hate if wrong :(

Explanation:

which of the following can cause an algal bloom ?

Answers

Answer:

I believe its either C or D

Answer:

The answer should be B.

I need help now god dam

Answers

Answer: 1

Explanation: Step by Step

What is it that you need help with ?

Can you help answer BOTH questions pleaseee!!!

Answers

1 and 2 is 10,400 and 12.5

Help! Please :) Thank you

Answers

First one??

I believe this is the correct answer

EASYYYYYYYYYYY A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.

Answers

Answer:

The motion of ball B will increase

Explanation:

Because if you hit ball A with less force than ball B then that means that ball B will go faster because you had hit ball A will less force witch will not be as faster as ball B.

Answer:

The first one

Explanation:

Can someone please help me with this it's for a grade.

Answers

Answer:

The Answer is 'D'

Explanation:

The diagram on the down side shows the behavior of the particles of a liquid so I suppose it is the ocean. While the top diagram shows the behavior of the particles of a gas so I am sure it's the air. Therefore I chose the last diagram because it describes exactly how you wanted in the question, which is the Ocean's water evaporating to become gas or the 'air' as we say

Thank you and I hope you like this answer!

What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breaking
BRAINLIEST

Answers

Answer:

CCCCCCCCC

Explanation:

Which of the materials in the chart originally came from fossil fuels?

Group of answer choices

Acrylic

Cotton

Nylon

Polyester

Viscose

Answers

Answer:

Polyester

Acrylic

Nylon

Are all made of fossil fuels.

nylon the answer is nylon

What element has the most Protons/ Neutrons/ and electrons.

Answers

Answer:

gold

Explanation:

please help me answser this, its a photo

o element
o subscribe
o coefficient

Answers

Answer:

I believe it is a element

.........

How are the scientific method and the engineering method similar?

Both methods identify failure points.
Both methods construct a hypothesis.
Both methods focus on designing things.
Both methods work on finding solutions to problems.

Answers

The answer is Both methods work on finding solutions to problems. Because the science is trying to get the right thing and engineering is trying to solve the problem and get right thing and is the same with the science

Explanation:

PLEASE HELP WILL GIVE BRAINLEST URGENT!!!!!!


When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound.


NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2

Answers

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is  

Step-by-step explanation:

1)When ever an acid reacts with baking soda brisk effervescence of carbon dioxide gas are released.

So, when citric acid reacts with baking soda it gives salt of sodium citrate , water and carbon dioxide gas.

2)

According to law of conservation of mass:

Number of atoms on reactant sides are equal to the number of atoms on product side.

Number of atoms of an element on left hand side is equal to the number of atoms of that same element on the right hand side.

Number of hydrogen atom on reactant side = 5

Number of hydrogen atom on product side = 2+ x

5 = 2+x

x = 3

Number of carbon atom on reactant side = 3

Number of carbon atom on product side = 1 + y

3 = 1 + y

y = 2

Number of oxygen atom on reactant side = 5

Number of oxygen atom on product side = z + 3

5 = z + 3

x = 2

Number of sodium atom on reactant side = 1

Number of oxygen atom on product side = a

1 = a

The missing compound is  

Explanation:

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is H3C2O2Na

If you need an explanation, please ask. I hope this helps! :)

Water is less dense as ice than liquid

Your answer:

true


false

Answers

Answer:

Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

Explanation:

Answer:

false

Explanation:

Hope that helps!!

Water’s chemical formula is . One atom of bonded to two atoms of . The hydrogen atoms are to one side of the oxygen atom, resulting in a water molecule having a positive charge on the side where the hydrogens reside and a negative charge on the other side, where the oxygen atom resides. This separation
of charge on of the molecule is called
word bank:H2O,oxygen,oppiste ends,hydrogen,attached,polarity

Answers

Water’s chemical formula is H2O
One atom of oxygen bonded to two attached atoms of hydrogen.
The hydrogen atoms are to one side of the oxygen atom, resulting in a water molecule having a positive charge on the side where the hydrogens reside and a negative charge on the other side, where the oxygen atom resides. This separation
of charge on opposite ends of the molecule is called polarity

I hope this right and can help you!

Connect as many terms that you can think of. Each term should be related to
the term at the center,
LIGHT​

Answers

Light PLEASE Thanks me I need points to ask questions
so the answer doesn’t have to be right to get points wow

4 QUESTIONS PLEASEEE HELP WILL GIVE BRAINLIEST!!!!
1. How are features like trenches, plains, ridges and valleys formed on the ocean floor?
2. Where does 90% of the marine life live in oceans?
3. a. Where are nutrients abundance? b. Where do these nutrients come from?
4. How do organisms deep I the ocean get their nutrients?

Answers

Answer:

1. Converging and Diverging plates

2. In the sunlit zone

3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process

4. Dead organic matter that come from phytoplankton and other plants

Answer:

1. Converging and Diverging plates

2. In the sunlit zone

3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process

4. Dead organic matter that come from phytoplankton and other plants

Explanation:

strong acids and bases can be harmful to both plants and animals in our waterways. which of the following is not a consequence of acidity ?

Answers

Answer:

I think b is the correct answer

Explanation:

Answer:I think maybe C? I don’t know... I am in 6th grade and I don’t know what grade science this is...

Explanation:

The table shows the densities of four samples, each of the same volume.


DENSITIES OF SAMPLES

Sample Density (g/cm3)
W 5.1
X 1.7
Y 7.3
Z 3.5

Which sample has the greatest mass?

Answers

Answer:

Its Y

Explanation:

The formula for density is D=m/v therefore the formula for mass is m=d(v) since v is a constant the sample with the highest density will also have the highest mass. Meaning that Y is the answer.

What substance do you get when you combine Bromine and Barium?

Answers

Barium bromide is the chemical compound with the formula BaBr2. Like barium chloride, it dissolves well in water and is toxic.

Materials with small, connected pores are _____.
A. Impermeable
B. Permeable
C. Unsaturated
D. Saturated
GOD BLESS AMERICA!!!!!!!!!!!
And God bless you! :)
Merry Christmas and happy new year and stay safe and have an awesome day and God bless! :)

Answers

Permeable

Because substances can move through the small pores
Permeable - I think I learned it in biology two years ago

One atom of (blank) bonded to two atoms of (blank).

Answers

Answer:

One atom of Oxygen bonded to two atoms of Hydrogen. It's a water molecule. The element consists of two identical atoms which is a diatomic molecule.

Explanation:

Answer:

One atom of Oxygen bonded to two atoms of Hydrogen. It's a water molecule. The element consists of two identical atoms which is a diatomic molecule.

Explanation:

How do unicellular and multicellular organisms differ in structure and function?

Answers

Unicellular had one cell and multicellular has more than one

So im confused i don't know what im supposed to do here

Answers

So I believe you are supposed to take notes based on the guiding questions (the questions on the side).

Answer:

save your notes in a google drive folder then go back to canvas and click on the "google drive" tab then scroll down and once you see the name of the folder you saved your notes in, click on it then hit submit

Explanation:

how are elements in the same group in the periodic table alike

Answers

C or D sorry if neither

Answer:

D. They have similar chemical properties

Explanation:

That's because they have the same number of electrons in the outer orbital

I WILL GIVE BRAINLIEST BUT THE QUESTIONS MUST ALL BE ANSWERED

Directions: Identify the manipulated variable and responding variable for each hypothesis.
HINT: If (fill in manipulated variable), then (fill in responding variable)

1. If plants are watered, then growth height will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

2. If chocolate is given to teachers, then amount of homework will decrease.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

3. If trees have leaves, then bird nests will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

4. If acid rain is in water, then fish population will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________

5. If calcium is given, then bone strength will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: _______________________________________

Answers

Answer:

huh

Explanation:

Not sure but maybe the answer to the first question is: the amount of water


Sorry if that’s not right

At room temperature, aluminum is a solid and water is a liquid. How do the particles of the solid aluminum compare to the particles of the liquid water?
A. The particles in the liquid water and the solid aluminum are the same. They both vibrate and move slowly.
B. The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other.
C. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.
D.The particles in the solid aluminum are close together with no regular arrangement, and the particles in the liquid water are well separated with a regular arrangement.

Answers

Answer:

B

Explanation:

The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.

Hope this helps, have a good day : )

It is important that engineers build a structure that is safe. What do they look for when testing their designs?

Failure points
Fair tests
Prototypes
Variables

Answers

Variables
or failure points

Answer:

Failure Points

Explanation:

Engineers want to test the areas that may possibly fail when they are building designs so when they go to actually build it they know it will not fail.

help im being TIMED A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.

Answers

Answer:

c

Explanation:

The batter aint changing the force he is using while hitting Ball B. Therefore, Motion of ball b will stay the same :D

Answer:

The third one

The Motion of ball b will stay the same

hope this helps

Explanation:

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Answers

YESSSSS I ADORE HIM-

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Other Questions
Data related to the inventories of Costco Medical Supply are presented below: Surgical Surgical Rehab Rehab Equipment Supplies Equipment Supplies Selling price $ 260 $ 100 $ 340 $ 165 Cost 170 90 250 162 Costs to sell 30 15 25 10 In applying the lower of cost or net realizable value rule on an individual item basis, the inventory of surgical equipment would be valued at: (do not include $ in your answer) Which city completes this list?Select one:AlexandriaJerusalemHarran can people with amusia hear thier own voice? A storm front moves in and Rachel and Pam notice the column of mercury in the barometer rises only to 736 mm. Assume the density of mercury is 13, 000 kg/m 3(a) What is the change in air pressure?(b) What if their barometer was filled with water instead of mercury, how high does the column rise? Density of water = 1000 kg/m WILL MARK YOU BRAINLIEST ANSWER 7,10&11 plz Define the three economic effects of oligopoly Paleolithic society can be characterized by which of the following traits?A: Tools made with iron were used by settled societies.B: its members worshipped a single Creator God,C: The division of labor was based on gender in hunter-gatherer societies,D: Powerful kings ruled cities with administrations. 1. The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle.carbon dioxidecarbon sinkcarbon sourcecarbon flux2. Bacteria add carbon to the carbon cycle bybeing consumed by larger organisms, such as plankton.decomposing dead organisms.exchanging carbon dioxide and oxygen gases.performing photosynthesis.3. Breathing is related to the carbon cycle because(1 point)only animals release carbon dioxide as a waste product.it produces energy.organisms exhale carbon dioxide.it converts glucose and oxygen to water and carbon dioxide.4. Which of the following is a carbon sink in the desert?(1 point)cactisnakesplanktoninsects5. Where does cellular respiration occur?(1 point)bacterialungschlorophyllmitochondria Find a vector that has the same magnitude as v. v=lineAB with A=(4,0) and B=(7,4)[A] t[B] u[C] w [D] r What is most likely to push the price of a company's stock higher?an increase in demand for the stocks of similar companiesan increase in tariffs paid by the company's competitorsan increase in demand for the company's stockan increase in the exchange rate for the U.S. dollar which equation represents the process of cellular respiration? The admission fee at a museum is $5 for children and $16 for adults. Yesterday, 800 people came to the museum and $8400 was collected. How many children and how many adults came to the museum? A(n) ____________ stretch is one done where antagonist muscles are used to stretch the muscles. But the _____________ stretch is one that is done that the muscle needs help from something or someone to stretch the muscle. Which states wanted to expand slavery into the new territories in the United States? NEED HELP WIT DIS ASAP PLS ITS THE FINAL Explain the compromises that helped shape the constitution!! GIVING BRANLIEST PLEASE HELP Xavier Dupree deposited $1,400 in a new regular savings account that earns 6.5 percentinterest compounded monthly. He made no other deposits or withdrawals. What is theamountin the account after 9 months?O $1,493.76O $1,422.87O 1,446.12O $1,469.75 Find gradient of y=x^2-4x+6 at (3,3) What was the dominant pattern of race relations in colonies? What is the trial balance used?a. It is a financial statment. b. It doesn't contribute to the accounting cycle.c. It records balance of a balance sheet. d. It records balance of accounts.