PLS HELP (science)
Match the following molecules with the number of atoms they contain.

1. 2Fe
seven
2. 2Al 3O 2
eight
3. 4O 2
two
4. 5C
five
5. H 2SO 4
ten

Answers

Answer 1

Answer:

hello I will answer ur question if u answer mine

Explanation:

Answer 2
1. Two
2. Ten
3. Eight
4. Five
5. Seven
Just count the number number of substances, the subscript(number at the bottom) tells you how many of it there is. Then you check if there is a coefficient(number in front of all the substances) and if there is a number you multiply you previous answer by it. The coefficient tells you how many molecules there is. Your final answer is the number of atoms!

Related Questions

So im very confused!!! if you want to answer then plz read the instructions and plz give proper answer !!! Need help asap!!!!!!!!!!!!!!!!

Answers

It is kenetic energy
First answer should be a picture of someone with spiky hair and a balloon next to them. It’s kinetic energy.

Second answer is that the spring, when pushed down, has the POTENTIAL to spring back up and exert energy. It’s potential energy.

Hope this helps

PLS HELP DUE SOON(Ignore that wet thingy on my paper it’s my matcha latte it go on it lol)

Answers

Answer:

well for

1. Because cytoplasm is made of a jelly like consistent

and

2. wastes product are transported by endoplasmic reticulum ,from organelles to outside cell ,so if cell size is big ,it will take more time in transportation and vice versa

Answer: Hello

Explanation: Hello

The Statue of Liberty is made of copper metal. Copper metal has the physical property of being orange in color. Over years of being exposed to moist air, the surface of the statue has begun to form a green coating. Is the green coating the product of a physical or chemical change? Explain how the green layer is formed.

Answers

Answer:

The statue is made of a metal called copper. Over time, the copper has gone through a chemical change. This is called a chemical reaction.

Explanation:

i dont think this will help...

Answer:

Chemical.

Explanation:

Pretty sure its chemical, due to it oxidising which is a chemical reaction.

Think about the ecosystem that you live in.
Write a response below describing it in complete sentences.
4)
Use each of these terms correctly in your description:
• community
• ecosystem
• biotic
• population
• individual
• abiotic

Answers

Answer:

this is an answer for YOU to answer. this is about YOUR ecosystem

Explanation:

just say what it's like, is it a community? is it populated? explain.

Through all the food chain, food web, chemical cycles, etc., biotic and abiotic forces interact within an ecosystem. Therefore, the functional and structural unit of nature is the ecosystem.

What is ecosystem?

The functional and structural unit of nature is the ecosystem.  This relationship between living and nonliving elements is handled by the ecosystem. All living things, including plants, animals, and microorganisms, rely on non-living substances to survive and keep the natural world in balance.

Individual, population and community play important role in running a ecosystem. Terrestrial Ecology: A terrestrial ecosystem is an ecosystem that is found on land. Grassland, desert, and tundra ecosystems, for instance.

Therefore, the functional and structural unit of nature is the ecosystem.

To know more about ecosystem, here:

https://brainly.com/question/19267717

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In a chemical reaction, the mass of the reactants is 13.3 grams. Which of the following could represent the mass of the products?

A. 26.6 grams.

B. 13.3 grams.

C. 39.9 grams.

D. 3.3 grams.

Answers

Answer:

Hi the answer should be 13.3

Explanation:

Hope this helps! :D

B cause the reactants mass must equal the products mass

How do wetlands form?

- tributaries flow into rivers.
• Runoff travels down the side of a divide.
ɷ Water builds up in a depression left by an ice sheet.
• Groundwater comes to the surface and floods the land.

take your time :) !

Answers

Answer:

I think it's "Water builds up in a depression left by an ice sheet."

Explanation:

I think.

Water builds up in a depression left by an ice sheet!

List the communities in a successional sequence of secondary succession?

Answers

A stable deciduous forest community.

A disturbance, such as a fire, starts.

The fire destroys the vegetation.

The fire leaves behind empty, but not destroyed soil.

Grasses and other herbaceous plants grow back first.

Small bushes and trees begin to colonize the public area.

⚡❤️

True or false? Tornadoes can form when the air in a strong thunderstorm or a supercell begins to rotate.

Answers

Answer:

true

Explanation:

tornadoes can dogs when they are in the air which then form strong thunderstorms

Answer:

it's true ..

Explanation:

they r caused by weather conditions

How does the law of conservation of mass apply to this reaction: Mg + HCl → H2 + MgCl2?
A.) Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
B.) The equation needs to be balanced. There are fewer hydrogen atoms in the equation than magnesium or chlorine.
C.) Only the hydrogen needs to be balanced. There are equal numbers of magnesium and chlorine.
D.) The law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.

Answers

Answer: The correct answer is A. Hydrogen and chlorine need to be balanced. There's an equal amount of magnesium on each side.

What will a soccer player need to do to change a ball’s position?
1. He must apply gravity to the ball so that the ball will move.
2. He must weigh the ball to determine the motion that needs to occur.
3. He must set the ball in motion by applying a force in the desired direction.
4. He must identify the location of the ball.
First one to answer will get brainliest!

Answers

Answer:

He must set the ball in motion by applying force in the desired direction.

Explanation:

That is how the soccer player will change the ball's position.

Have a good day :)

Answer:

4. He must identify the location of the ball.

Explanation:

If a soccer player needs to change his position, then he will need to identify the location of the ball.

hope this helped.

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!! 30 POINTS!!!!!!!!!!!!!!

Answers

Answer:

What is this please send questions properlythen i will answer it properly

What is the name of the tide when the sun, moon, and earth are all aligned, causing the greatest pull for highest and lowest tides?
Question 10 options:

Low tide


Spring tide


High tide


Neap tide

Answers

Answer:

spring tide

Explanation:

When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides — both commonly called spring tide

Answer:

Whenever the earth, moon and sun are aligned, the gravitational pull of the moon is augmented by the gravitational pull of the sun, causing larger than average tidal ranges — meaning especially high high tides and very low low tides. These extreme tides are called “spring tides.”

Explanation:

An object has a mass of 960 g and a volume of 15cm3 what’s the density?

Answers

Explanation:

density = mass ÷ volume

mass = 960g

volume = 15³ = 15 × 15 × 15

= 3375 cm

density = 960 ÷ 3375

= 0.28 g/cm³

In this project, you will practice calculating work and speed using the proper formula. You will also use a data table to record and analyze your data. For each question, you will complete a row in your data table to record the details, and your results. Don't forget to use proper units of measurements in all of the parts of your table!

pls help asap mark brainyist can't spell sorry

Answers

Answer:

CHECK THE IMAGE

Explanation:

Fossils are the preserved remains or traces of an organism that used to be alive.

Answers

Answer:

This is True

Explanation:

A fossil is any remains or trace of an ancient organism. Fossils include body fossils, left behind when the soft parts have decayed away, as well as trace fossils

true because the definition of a fossil is “the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.”

Please help!!! Hydrogen and oxygen undergo a chemical reaction to form water. How much water will be created if hydrogen has a mass of 3.56 g and the oxygen has a mass of 25.32 g?

Actual answers only please :)

Answers

Answer:

22.88g

Explanation Hope this helped <3

Plz, help! I need help with questions a and b! Plz, write your answer in complete sentences! And the first person to answer will get a brainliest! Plz, NO SCAM links!!!!!!!

Answers

Use socratic it’s an app it will have the answer for you
Answer:
FOR A : Once the tennis ball and the board are in motion, they will continue in motion in the same direction at the same speed unless acted upon by an unbalanced force. This demonstrates Newton's first law of motion.

FOR B: When the accelerating ball hits the resting pins, it causes them to become unbalanced forces and they accelerate into each other

What type of force is known for exerting an upward force on objects in a fluid?
1. buoyant force
2. friction force
3. gravitational force
4. magnetic force
The First person to answer will get the brainliest!!!!!!

Answers

Answer:

A. buoyant force.

Explanation:

It is like a buoy, but it is force pushing an object while in water.

hope this helped.

How does the Coriolis effect impact the Gulf Stream and the Brazil Current?
It turns the Gulf Stream southwest and the Brazil Current northeast.

It turns the Gulf Stream northwest and the Brazil Current northeast.

It turns the Gulf Stream northeast and the Brazil Current southwest.

It turns the Gulf Stream northeast and the Brazil Current northwest.

Answers

Answer:

Honestly, I think it is C.

Explanation:

Brazil is in the south, so that's why it is C.

hope this helped.

GIVING 40 POINTS PLZ HELP!!!!!!!!

Answers

Answer:

to find heart rate put 2 fingers on your wrist or neck also what one do you need help with

Explanation:

To find heart rate put 2 fingers on you wrist or neck

PLEASE HELP
Sheila and Jerome are lab partners. They have the following materials at their table:

1 square of aluminum foil, 1 stirring rod, 1 beaker of water, 1 scoop of copper II chloride salt (blue color)


Step 1:Jerome adds all the salt to the water and stirs. The salt crystals disappears and the liquid solution turns a clear blue.

Step 2: Sheila tears up the aluminum foil into small pieces.

Step 3: Jerome dares her to put the foil in his beaker. They see the edges of the foil turn a rusty orange. As they stir, the beaker becomes warm to the touch and a vapor begins to rise from the surface of the beaker. Within a few minutes, the foil has disappeared and the liquid is now clear. There are orange-rust colored flakes floating in the liquid.


Q: Jerome claims that when the salt was added to the water it turned blue and the foil disappeared, these were chemical changes. He went on to explain that the chemical change was due to the fact that the atoms were speeding up. Sheila disagrees claiming that 1 is a physical change and 1 is a chemical change and Jerome’s evidence is incorrect. Who is correct, Jerome or Sheila? Write a scientific explanation (CER) to support your argument.

Answers

Answer:

jerome

Explanation:

jerome is correct
and do u need the reason why if so comment back to this

I need help with this please

Answers

Answer: C, the number of atoms stay the same

Explanation:

The number of atoms remains the same before and after the reaction. This is because of the Law of Conservation of Mass, which states that matter cannot be created or destroyed in a chemical reaction. In the case of methane burning, one molecule of methane (CH4) reacts with two molecules of oxygen (O2) to produce one molecule of carbon dioxide (CO2) and two molecules of water (H2O). The total number of atoms on both sides of the equation is conserved.

Is gravity alone sufficient to explain the behavior of the tinsel in the Levitating-orb system? Explain why.

Answers

Answer:

The object is moving forward

Explanation:

Hop this helps :)

Answer: The orb is attracted to the pipe at first because the orb has a positive charge. As soon as the orb touches the pipe, it picks up a negative charge. Since the pipe is negative and the tinsel orb is now negative, they repel away from each other and the orb levitates!

A food scientist is determined to create a mango that looks exactly like a mango but tastes like salmon. Can this be achieved through artificial selection? Why or why not?

Answers

Answer:

depends on the artificial 'materials' used and the food scientist

Explanation:

If the food scientist is skilled enough and works hard enough this it might be possible but this does seem like a difficult task i personally doubt that this could be done until next few years. :)

No , Because ripened orange tastes different than artificial so we can know

I HAVE A D- IN SCIENCE PLEASE HELP

Complete the sentence.

In chemical reactions, a product is _________.

A. any substance that is to the left of the arrow

B. any substance that is made of the greatest number of atoms

C. any substance that is made from the least number of atoms

D. any substance to the right of the arrow

Answers

Answer:

D - Any substance to the right of the arrow.

Explanation:

A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.

What type of fossil forms when the impression from the remains of an organism is filled in with soil and hardens into the shape of the original organism?

Answers

Answer:

i belive its a "Mold fossil"

Explanation:

If the Titan lake evaporated, how would the change in kinetic energy affect the speed of the molecules found in the lake? (highlight one)
 The kinetic energy would increase. The molecules would move faster.
 The kinetic energy would decrease. The molecules would move slower.
 There would be no change in kinetic energy. The molecules would move at the same speed.

Answers

Answer:

a) The kinetic energy would increase. The molecules would move faster.

Answer: The kinetic energy would increase. The molecules would move faster.

List the communities in a successional sequence of secondary succession?

Answers

Secondary succession occurs in areas where a biological community has already existed but some or all of that community has been removed by small-scale disturbances that did not eliminate all life and nutrients from the environment.

The given communities can be ordered in the secondary succession as grass, shrubs, small trees and large tress.

What is secondary succession ?

The life cycle of a plant is characterized by secondary ecological succession. Secondary succession, in contrast to primary succession, is a process initiated by an occurrence such as a forest fire, harvesting, hurricane, etc. that reduces an already established ecosystem (such as a forest or a wheat field to a smaller population of species.

As a result, secondary succession occurs on preexisting soil, whereas primary succession typically takes place in a location lacking soil. Many elements, including trophic interaction, starting composition, and competition, might influence secondary succession. Trade-off with colonization

Therefore, the given communities can be ordered from the small level to higher level as grass, shrubs, small trees and large tress.

Find more on secondary succession:

https://brainly.com/question/26675203

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Your question is incomplete. But your complete question is as follows:

List the given communities in a successional sequence of secondary succession? shrubs, small trees, grass, large tress.

How are seatbelts related to inertia? Write you answer in complete sentences.
I need answer asap!!!

Answers

Answer:

Inertia- the tendency of an object to resist a change in velocity

Explanation:

Say a car was going at 65 MPH, but suddenly stopped. For all of the people in that car, their bodies would keep moving forward at 65 MPH until stopped by an equal force (say, the thing right in front of each person) The seatbelt is there to protect you from your own inertia.

Exactly what she said ^^^^^^

Plz help! Write your answer in complete sentences ! Write a proper answer! 1st one to answer will get a brainliest!

Answers

Answer:

the name for CaCO3 is Calcium Carbnate, and its relations with coral reefs is that the process for making said compuond happens within coral, and is considered the building block for coral reefs.

Explanation:

hope this helps!

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