Chemistry Middle School

which energy source is a free resource that produces no greenhouse gases?
solar
wind
water
biomass
or geothermal?

Answers

Answer 1
I think it’s solar but I’m sorry if that’s wrong :)
Answer 2
Solar is the answer

Related Questions

How long does it take for the entire pattern of moon phases to be completed?
A. it takes about a week
B. it takes about a month
C.it takes about a year
D.it takes a different amount of time each time the pattern

Answers

B. It takes about a month
The answer could be B

PS: Sorry if I’m wrong

The rising magma that may result from this type of plate movement may produce


HELP

Answers

Answer:

Tectonic plates

Explanation:

Hi!!!
Please explain what the Law of Conservation Of Mass is with the following terms:
Chemical Reaction, Reactant, Product, Balanced, Coefficient, and Subscript.

THANKS SO MUCH, Have a good day!!!

Answers

Matter cannot be created or destroyed.
The mass of the reactants in a chemical reaction will equal the mass of the products

Hope this helps :)

Which energy source is not available during rain or a particularly cloudy day?
solar
wind
water
biomass
or geothermal?

Answers

The anwser is biomass
bio mass is the answer

Avanti works in a bookstore. She has four books and is going to place them in two stacks.
Speak Fast !!!The diagram above shows the books before they touch. Use the information in the diagram to answer the question.

How did the temperatures of the four books compare before they touched? How will the temperatures of the two top books compare after the books have been touching for a while, and why?

Answers

Answer:

um where's the diagram

Explanation:

I need it to help with the question

which energy source is available in remote areas all around the world?
solar
wind
water
biomass
or geothermal?

Answers

geothermal energy is your answer :)

What periodic element is from Europe

Answers

Answer:

Europium

Explanation:

Europium

Europium was isolated in 1901 and is named after the continent of Europe.

Europium - Wikipediaen.wikipedia.org › wiki › Europium

I think it would be Europium

what type of atmospheric conditions does weather describes

Answers

Answer:

humidity, air temperature and pressure, wind speed and direction, cloud cover and type, and the amount and form of precipitation,

Which of the following is the best example of kinetic energy?

Group of answer choices

A pitcher preparing to throw a ball

A bowling ball rolling toward the pins

A runner in position at the start line

A horse standing in an open field

Answers

A bowling ball rolling toward the pins because kinetic is any moving thing

Answer:

A bowling ball rolling toward the pins

Explanation:

Kinetic energy is when an object is in moving or kinetic energy is when it has moving energy.

HELP DUE TODAYYYYYYYYYYYYYYYY

Answers

what he did wrong was he put the plant in the closet, plants need sun
Plant in the closet is bad for the plant as what spongebob did. It need energy from the sun. The plant needs to be outside.

PLZ HELP
Explain why higher temperature in a substance does not mean the substance has more thermal energy?

Answers

Answer:

Temperature is the average kinetic energy of particles of an object. Warmer objects have faster particles and higher temperatures.

Explanation:

If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature is measured with a thermometer.

Find the slope of the line that passes through the points (2, 11) and (8, 14).

Answers

The slope is m=1/2 you subtract 14-11 and 8-2 which gives you 3/6 which simplied is 1/2

Answer: The slope is M=1/2 you subtract 14-11 and subtract 8-2 which gives you 3/6 and the last answer becomes  1/2

Explanation:

A solution of ammonium carbonate is mixed with a solution of magnesium nitrate. If magnesium carbonate is insoluble in water, what is the reaction?​

Answers

Explanation: The insoluble magnesium carbonate produced is called a precipitate. In a double displacement reaction, ionic compounds combines to produce precipitates. In this type of reaction, species are usually exchange to form new compounds

Explain: parapet ma

An _______ is one form of a _______ where one received from each parent. Alleles are represented by ________.
PLSS ANSWER ASAP PLEASE.!!!!

Answers

Answer:

aren't there words??????

an ALLELE is one form of a GENE

briefly explain why the number of electrons circling the nucleus determines the physical and chemical properties of the Atom

Answers

Answer:

Electrons are negatively charged particles that orbits the nucleus

Explanation:

Chemical and physical properties of elements are usually determined by the number of electrons they posses. When atoms combine, they do so in order to attain stability.

Which ecosystem is the most diverse ecosystem?

Group of answer choices

Artic

Tundra

Marine

Rain Forest

Answers

Answer:

Rain forest

Explanation:

The rainforest has a very diverse animal kingdom

please use a t least 2 of the words please! thank you

Answers

Answer:

model  atoms

Explanation:

Answer:

Property product

Please answer with an actual answer and not just put a random word ^-^

Materials

large ball about the size of a basketball
small ball about the size of a tennis ball
strong light of about 100 watts or more
dark room

Directions

Place the large ball about 12 feet from the light source. Then place the small ball in the shadow of the large ball. Observe the shadow pattern.
Place the large ball in the shadow of the small ball. Observe the shadow pattern.

Questions

Which eclipse was modeled when the large ball was between the small ball and the light?
Which eclipse was modeled when the small ball was between the large ball and the light?
What does the large ball represent?
What does the small ball represent?
What does the light source represent?
Draw a picture showing a lunar eclipse.
Draw a picture showing a solar eclipse.

Upload your answers to the experiment questions and your drawings of a lunar and solar eclipse. Be sure to answer every question and use complete sentences.

Answers

Which eclipse was modeled when the large ball was between the small ball and the light?

The model is a "Lunar Eclipse" (If it was talking about the earth, then yes, it is a lunar eclipse).

                                                             

Which eclipse was modeled when the small ball was between the large ball and the light?

The model is a "Solar Eclipse".

                                                             

What does the large ball represent?

The earth.

                                                             

What does the small ball represent?

The moon.

                                                             

What does the light source represent?

The sun.

Hope this helps!~ <3

(I can't draw so sorry.)

Write the balanced chemical equation for the reaction shown.


Carbon is represented by a black sphere, nitrogen by a blue sphere, chlorine by a green sphere, and hydrogen by a white sphere. In the reactants there are three molecules that contain one black sphere and four white spheres. There are three molecules that contain two blue spheres and four green spheres. In the products there are three molecules that contain one black sphere and four green spheres. There are three molecules that contain two blue spheres. There are six molecules that contain two white spheres.

Answers

Answer:

3CH₄ + 3N₂Cl₄ → 3CCl₄ + 3N₂ + 6H₂

Explanation:

    Carbon_black sphere

    Nitrogen_blue sphere

    Chlorine_green sphere

    Hydrogen_white sphere

Reactants:

Three molecules that contain one black sphere and four white spheres

3CH₄          

Three molecules that contain two blue spheres and four green spheres:

3N₂Cl₄

Products:

Three molecules that contain one black sphere and four green spheres:

3CCl₄

Three molecules that contain two blue spheres:

3N₂

Six molecules that contain two white spheres

6H₂

The reaction proper:

3CH₄ + 3N₂Cl₄ → 3CCl₄ + 3N₂ + 6H₂

Sidenote: I hope this answer helps!

Which of the following is the best example of potential energy?

Group of answer choices

A car stopped at the top of a hill

A swimmer doing the backstroke

A bird making a nest

A gymnast doing a cartwheel

Answers

Answer:

A car stopped at the top of a hill

Explanation:

Potential energy is the energy that is stored in an object due to its position relative to some zero position.

therefore, the answer is the first option

=> A car stopped at the top of a hill

hope this helps and is right :)

A car stopped at the top of the hill

Match the term with its definition

Cytoplasm

Electron transport chain

Fermentation

Pyruvate


An organic molecule that occurs as an intermediate in many metabolic processes

The chemical breakdown of a substance

A process in which electrons are transferred from one compound to another with a release of energy occurring in the production of ATP

The gel-like material within a living cell

Answers

cytoplasm - the gel-like material within a living cell

electron transport chain - a process in which electrons are transferred…

fermentation - the chemical breakdown of a substance

pyruvate - and organic molecule that occurs…
cytoplasm is the jelly like substance inside a cell, it’s mainly known for being the place chemical reactions happen

At the atomic level, are synthetic medicines different from natural medicines? Explain your answer.

Answers

Answer:

Although herbal medicines are less potent in comparison to synthetic drugs in some cases but still these are consider less toxic or having less side effect in contrast to synthetic drugs. The ultimate norm for any medicine (human made or natural) is their non-toxicity, effectiveness, specificity, stability and potency.

(It's on quizlet btw)

Answer:

Although herbal medicines are less potent in comparison to synthetic drugs in some cases but still these are consider less toxic or having less side effect in contrast to synthetic drugs. The ultimate norm for any medicine (human made or natural) is their non-toxicity, effectiveness, specificity, stability and potency.

Explanation:

John rode 3150 m at an average speed of 350 m/min.If he had ridden at average of 375 m/min instead. How much sooner would it have taken? (In seconds)​

Answers

Answer:

36

Explanation:

It would have taken 36 s for John to cover the distance.

Average speed is defined as the total distance travelled divided by the total time taken.

Average speed = Total distance / total time

To obtain the answer to the question, we'll begin by calculating the time taken to cover the distance (3150 m) in each case.

Case 1:

Average speed = 350 m/min

Total Distance = 3150 m

Time 1 =?

Average speed = Total distance / total time

350 = 3150 / Time 1

Cross multiply

350 × Time 1 = 3150

Divide both side by 350

Time 1 = 3150 / 350

Time 1 = 9 mins

Multiply by 60 to express in seconds

Time 1 = 9 × 60

Time 1 = 540 s

Case 2:

Average speed = 375 m/min

Total Distance = 3150 m

Time 2 =?

Average speed = Total distance / total time

375 = 3150 / Time 2

Cross multiply

375 × Time 2 = 3150

Divide both side by 375

Time 2 = 3150 / 375

Time 2 = 8.4 mins

Multiply by 60 to express in seconds

Time 2 = 8.4 × 60

Time 2 = 504 s

Finally, we shall determine how much sooner it would have taken John to travel at 375 m/min. This can be obtained as follow:

Time 1 = 540 s

Time 2 = 504 s

Difference in Time =?

Difference = Time 1 – Time 2

Difference in time = 540 – 504

Difference in time = 36 s

Therefore, it would have taken John 36 s if he had travelled at an average speed of 375 m/min.

Learn more: https://brainly.com/question/24435150

__________ is an organism’s __________ or physical traits which is _________ by __________. Example: _______ _______, detached earlobes
PLSSS ANSWER ASAP I BEG PLAEASEEE

Answers

Answer:

.

Explanation:

help me please with the connect it :,)

Answers

1. Potential

2. Potential

3. Potential

4. Kinetic

5. Kinetic (not sure)

6. Potential

7. KInetic

8. Potential

9. Kinetic

10. KInetic

11. Potential

12. Potential

help please
Determine whether each action will increase or reduce soil erosion.
cattle grazing
contour plowing
deforestation
hydroseeding
planting vegetation
sort into the catigories
Increse soil erosion or reduse soil erosion

Answers

Increase soil erosion:
• Cattle grazing
• Deforestation
• planting vegetation

Reduce Soil Erosion:
• Contour Plowing
• hydro seeding
—————————————
Hope this helps!

Answer:a

Explanation:

screen shot attached please help fast i will give brainliest

Answers

It will change because of the heat
the heat will change it

Litmus paper, pH paper, and purple cabbage juice are all examples of ______________________. They all change colors depending on a substance's pH.


Acids

Buffers

Indicators

Bases

Answers

Indicators because they indicate what the ph level of a substance is
Indicators because they tell you what PH level the substance is

A girl stands on a bathroom scale. In metric units, the scale indicates that her weight is 42

Newtons. This means the force of gravity is pulling her feet onto the scale with a force of 42

Newtons. With what force does the scale push back up against her feet?

Answers

Answer:

The bathroom scale pushes her back 42 metric units, the same as her weight. Newton's 3rd law says that how much ever you push onto some object, it pushes back onto you with that same amount of pressure.

Please mark me brainliest so that I get encouraged to keep up on answering these types of good answers.

Kiley wants to balance the equation H2 + N2 → NH3. Which would be her first step in balancing an equation?

Answers

Answer: The balanced equation will be

6H2 + N2 → 2NH3

Explanation:

First step is to balance nitrogen

ie, H2 + N2 → 2NH3

Second step is to balance hydrogen accordingly

ie, 6H2 + N2 → 2NH3

This is the perfect balanced equation.

Answer:

c

Explanation:

c

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