2Mg + O2 ----> 2MgO
in the equation above , how many atoms are in the oxygen molecule

A.2

B.0

C.1

D.3 ​

Answers

Answer 1

Answer:

2

Explanation:


Related Questions

What are three ways energy is used by the organisms?

Answers

Answer:

Organisms use energy to survive, grow, respond to stimuli, reproduce

Explanation:

Three ways energy is used by the organism are food, nutrients, and sunlight.

What are living organisms?

Living organisms are those organisms that grow, adapt, and reproduce their young ones. Organisms need energy for their biological purposes. Organisms get energy from plants and other animals. This energy is used in the form of glucose.

Cellular functions require energy, which living things must obtain from food, nutrition, or sunshine. Energy is used in a cell for the transport, synthesis, and breakdown of nutrients and molecules.

Glucose and ATP are the two types of molecules that organisms primarily use for chemical energy. In the entire biological universe, both molecules are used as fuel.

Therefore, the energy is used by the organisms in three ways that are food, nutrients, and sunlight.

To learn more about living organisms, refer to the link:

https://brainly.com/question/12623012

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If a hurricane was to hit Jacksonville during which Moon phase would
we most likely experience the most damage? Describe the factors that
are involved in order to develop an answer.

Answers

Answer:

I think it would be a "Waxing Crescent"

Explanation: I said this because this is the Moon phase that we see almost everyday; if I'm correct.                        

Let me know if it's right or wrong...

If you are on the top a mountain and drop an apple, it
will fall to the ground, even though the apple is
gravitationally attracted to you. Why?
a)Earth is larger and has a much stronger
gravitational pull
b) Apples always fall down
C) Centrifugal forces pull the apple to the Earth
and that is stronger than your gravitational pull
d) None of these

Answers

A. Earth does have a bigger gravitational pull because Planet Earth is huge and it needs and has all the gravity.

A wildlife biologist and her team counted 150 lizards in a 25 km area. What is the population density

Answers

Given parameters:

Number of lizards  = 150 lizards

Area of the study = 25km²

Unknown:

Population density = ?

Solution:

Population density refers to the number of organisms per area in a particular location.

Mathematically;

     Population density  = [tex]\frac{Total Population}{Area}[/tex]  

    Population density  = [tex]\frac{150}{25}[/tex]   = 6lizards/km²

The population density of the study area is  6lizards/km²

HELP PLEASE ANSWER WITH A 10 SENTENCE PARAGRAPH!
How do scientists use the electromagnetic spectrum to view our universe? Would we be able to see some objects in the universe if we only used the visible spectrum? Explain.

Answers

Answer:

Explanation:

Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.

Biology
-Calculate the fluid pressure at Piston A.
-Calculate the force exerted on Piston B.
-Which principle is being applied? What does the principle state?
Show all your work!

Answers

Answer:

80N

Explanation:

in both sides, pressure is the alwyays the same whatever the area is..

First we calculate the pressure at piston A:

P= F÷a

given that,

#F= 20N

#a=1m^2

P= 20÷1

P= 20 Pa.

At piston B:

pressure is the same = 20Pa

Area= 4m^2

P=F/a

F= P×a

F= 20 × 4

F= 80N

help please .............​

Answers

Answer:

C. Guanine

Explanation:

A pairs together with T, or U in RNA,

and C and G always pair together.

Answer:

The answer is C. Guanine

Explanation:

Pyrimidines always bond with purines.  Since Cytosine is a pyrimidine, it must bind with a purine, which can either be Adenine or Guanine.  However, Adenine has only 2 places for hydrogen bonding while Guanine has 3.  Since Cytosine also has 3, it would bind to Guanine.  GCAT is a useful acronym for remembering which binds to which.

Do cell walls manage the movement of all substances into and out of the cell?

Answers

No, the cell membrane regulates movement of materials into and out of cells.

Which is true about scientific knowledge?

Answers

Answer:

Explanation:

It changes as new evidence is found.

An example is the scientific knowledge of climate change. This scientific knowledge is not agreeable across all the world scientists. However as more and more evidence is collected, over time, the understanding of climate change will change and will either refute or corroborate the earlier understanding.


What are the 17 crops that California is the sole producer

Answers

Shdjbfnfnfnsnsjidkfbgnsnanjsjfhjgjeiaidjbhbybenajjgjg

Why are most stray cats short hair cats, but a variety of colors?

Answers

According to the American Humane Society, roughly 95% of all cats are short hair cats (called domestic shorthair). This applies not just to strays but cats that have owners as well. So that fact alone is enough to be able to see why most strays are short hair cats.

Through my research, I'm reading that some people claim that long hair cats are more expensive and rare cats, so the owner is likely to take better care of them and keep them indoors. This further inflates the percentage of stray short hair cats out on the street. I couldn't find much about this from an official source, but instead just through forum posts.

As for the colors, I'm not entirely sure. The cat's fur color comes from its genetics. So it's possible that darker more earth-tone colors help the animal survive better compared to say a lighter color or white fur. Due to natural selection and survival of the fittest, the darker hair color cats will eventually out-number the lighter fur colors. That's my theory anyway. I couldn't find much data or studies to back that up.

in the cell, enzymes act as what?

Answers

Answer: A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells.

Explanation:i had a project on this

Answer:

Enzymes are a type of protein found within a cell.

Explanation:

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.

Which topic do biologists ask questions about and study using scientific methods?
A)Planets and stars
B)The meaning of existence
C)Living things and the environment
D)The value of science

Answers

Answer:C

Explanation:

Answer: C. Living things and the environment

Explanation: It's correct!

A tropical rainforest includes trees, animals, insects, plants, rain, rivers, rocks, soil, and warm, moist air.

Which spheres of Earth are represented in a tropical rainforest?

biosphere, geosphere, hydrosphere
cryosphere, hydrosphere, ionosphere
geosphere, biosphere, cryosphere
ionosphere, hydrosphere, geosphere

Answers

Answer:

a

Explanation:

Answer:

biosphere, geosphere, hydrosphere

Explanation:

How do blood glucose levels increase in the body?

Answers

After you eat meals

Write the name of the element described
by each chemical symbol:
H
Fe
B
Pb
C С
O
Cu Na

Answers

Answer:

H= Hydrogen

Fe= Iron

B= Boron

Pb= lead

C= Caesium

O= Oxygen

Cu= Copper

Na= Sodium

Explanation:

i need help pls question is below

Answers

Answer:

Hey mate......

Explanation:

This is ur answer.....

B. 8 Kilograms

hope it helps,

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Hey!

I’m sure A is the answer

Best of luck :)

Which of these is an important part of the scientific process?
A. Observation
B. Nationality
C. Phrenology
D. Religion​

Answers

Answer:

A. Observation

Explanation:

To follow the scientific process you must first observe what phenomena you want to study, then you can make a hypothesis. The other options are not part of the scientific process.

A. Observation

Observation is the first step to the scientific process.

Nationality and religion can be a VARIABLE in the experiment, and phrenology is THEORY that has been tested through the scientific process but those answers are not an important part of the process itself.

Hope that helps :)

2. Why must the satellite use electromagnetic
waves instead of sound waves?

Answers

Answer:

Since electromagnet waves do not need a medium they can travel through space. Sound waves can't travel through space because they need a medium.

Explanation:

The satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.

What types of electromagnetic waves are used by Satellites?

The types of electromagnetic waves that are used by satellites are known as radio waves. These waves are utilized in order to carry out satellite signals with a speed of 3000,000km/sec.

Electromagnetic waves facilitate the required amount of speed and characteristics which ease the transmission of information required by the satellites. Radio waves are traveling through the vacuum of space with the fastest speed at which the information via the satellite can be transmitted. Radiowaves are also used for spacecraft communications as well.

Therefore, the satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.

To learn more about Electromagnetic waves, refer to the link:

https://brainly.com/question/13874687

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Which is the best description of what is making the Earth warmer?

Answers

the sun makes the earth warm

what dose the MA of 4 mean?​

Answers

Answer:  The mechanical advantage of a machine is 4. ... ... So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

Explanation:

Observe: Click Next. What happens in the cytoplasm?

Answers

Answer:

The cytoplasm is a jelly like substance that supports and suspends organelles and molecules inside the cell. It also helps move and dissolve materials throughout the cell including waste molecules, proteins, and hormones.

I hope this helps! I tried to keep it short and simple. :)

A desert is very hot during the day and receives very little rain. Which
plants have an adaptation that would help them survive?*

Answers

Answer: Well cacti for one

Explanation:

They can store water for a really long time because of the little rain.

Succulent plants have an adaptation that would help them survive in the desert.

Succulent plants

Cactus is an example of succulent plants that are adapted to survive in the hot and humid conditions of the desert. To survive in the desert, cactus has the following adaptations:

A modified flat green stem - helps in preparing food by photosynthesis and conserves water.The stem is covered with a thick waxy layer - helps to retain water.Leaves are present in the form of spines -  prevent water loss through transpiration.Long roots -very deep into the soil for absorbing water.

Learn more about succulent plants:

https://brainly.com/question/26630906

Which events take place in the light-dependent reactions of photosynthesis?
ERRE
O Light energy is converted sugars; sugars are broken down for energy.
O Light energy is captured by plants, light energy is used to make sugar.
O Light energy is converted to chemical energy; chemical energy is used to make sugar.
O Light energy is captured by plants; light energy is converted to chemical energy.
W
Markthina

Answers

Answer:

d

Explanation:

use uterus and vagina in the same sentece

Answers

The vagina connects the uterus to the outside world.

Mrs. Cobble has two guinea pigs, one black male and one white female. They 2 white babies

and 5 black babies. Why?

Answers

Answer:Guinea pigs get have of their traits from mom and half from dad. Some traits are recessive some are dominant

What would happen if your heart rate did not increase during exercise and describe why

Answers

Answer:

Blood would not pump fast enough to the rest of our bodies.

Explanation:

Are microscopic and macroscopic ecosystems affected by limiting factors differently?

Answers

What subject is this?

11. Which part of a plant cell contains chlorophyll?

Answers

Answer:

Explanation:

chloroplasts

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.


The part of a plant cell that contains chlorophyll is the chloroplasts

A cell’s digestive enzymes are enclosed in a membrane-bound organelle. How can these molecules function in the cell?

Answers

Answer:

A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.

Explanation:

Enzymes perform the critical task of lowering a reaction's activation energy—that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily

Other Questions
I need to write a poem about anything please help me is for college Andreasen Corporation manufactures thermostats for office buildings. The following is the cost of each unit:Materials $ 36.00 Labor 14.00 Variable overhead 4.00 Fixed overhead ($1,800,000 per year; 100,000 units per year) 18.00 Total $ 72.00 Simpson Company has approached Andreasen with an offer to buy 7,500 thermostats at a price of $60 each. The regular price is $100. Andreasen has the capacity to produce the 7,500 additional units without affecting its current production of 100,000 units. Simpson requires that each unit use its branding, which requires a more expensive label, resulting in an additional $2 per unit material cost. The labor cost of affixing the label will be the same as for the current models. The Simpson order will also require a one-time rental of packaging equipment for $20,000.Required:a. Prepare a schedule to show the impact of filling the Simpson order on Andreasens profits for the year. (Enter your answers in thousands (i.e., 5,400,000 should be entered as 5,400). Select option "higher" or "lower", keeping Status Quo as the base. Select "none" if there is no effect.) Status quo 100,000 units Alternative 107,500 units Difference Higher or lowerSales Revenue ? ? ? ?Less: variable cost ? ? ? ?Materials ? ? ? ?Labor ? ? ? ?Variable Overhead ? ? ? ?Total variable cost ? ? ? ?Contribution margin ? ? ? ?Less; fixed costs ? ? ? ?Operating profit or loss ? ? ? ?b. Do you agree with the decision to accept the special order. Yes or no?c. Considering only profit, determine the minimum quantity of thermostats in the special order that would make it profitable, assuming capacity is available.... Quanitity of Themostats #___?____ units hello every one you may not believe this but our app is in big trouble the dark web is sending virus to a lot of locations of the internet we might shut this app down forever im sorry . can you help please/? Select the correct answer.Which value for x makes the sentence true?1 4 + 4 = 74O443-308 I have been stuck on this for 1 hours someone plz help me Henry holds that directors are more the "authors" of a film than are the writers. To what film theory does he ascribe?A. grand theoryB. medium essentialismC. medium specificityD. auteur theory 2. dogs were one of the first animals that humans learned to Which choice best describes the use of sound devices to reinforce meaning in lines 2426 of A Lecture upon the Shadow? #1 What is the difference betweenan expression and an equation? Who was dred Scott?A. A leader of the Whig partyB. President Lincolns close advisorC. A slave whos sued for his freedomD. A general at gettysburg The support of the State governments in all their rightsI consider one of the essential principles of our GovernmentHow is Jefferson's view reflected in the U.S. Constitution? The U.S. Constitution lists all powers given to the states. The U.S. Constitution gives unlimited power to the states. The U.S. Constitution says powers not given to the federal government belong to the states. The U.S. Constitution gives unlimited power to the federal government and little to the states.Sam posted a series of hateful comments on a social media site. The social media site banned Sam. Sam argues this is a violation of his First Amendment right to free speech and he should be allowed back on the social media site.Did the social media site violate Sam's constitutional right to free speech? Yes; the First Amendment clearly states speech is a protected right. Social media is a form of speech that cannot be lim Find the product of each expression using properties of complex numbers. 1. (x + 3i)(x 3i) 2. (x 4i)(x + 4i) 3. (x + 8i)(x 8i) Which is the completely factored form of 18x4 42x3 + 24x2? 3x(3x - 4)(2x - 2) 3x2(3x - 4)(2x - 2) 6x(3x 4)(x - 1) 6x(3x - 4)(x - 1) NEED HELP IM BEGGING YOU PLEASE !!!!! Which process is involved in the formation of a galaxy f(x) = x^2- 51 when f (-7) can a baby stay in a stomach for 4 months? 20 POINTS AND 5 STARS The product of 12 and a number is greater than 24.