How many Oxygen atoms are present in this chemical equation: Na2O3?

Answers

Answer 1

Answer:

3

Explanation:

You can see how many atoms there are next to the element (O3)

Answer 2
its number 3 ik someone already said it but it’s 3

Related Questions

what are 5 abiotic things in a forest that are a part of a food web? this is for science

Answers

Answer:

minerals, light, heat, rocks, water, temperature, and soil

Explanation:

Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks and water.

Answer:

Sunlight, Temperature, Wind, Water, Soil

Explanation:

You need sunlight for photosynthesis, you need temperature because if a ecosystem or forest is too cold, plants won't grow, if it's too hot, there won't be enough water. Wind because seeds would be transferred throughout. Water, obviously. Soil because nothing can grow without it!

Find 4 similarities and 4 differences for each viruses and bacteria. I'm giving 20 points! Thanks❤️

Answers

A difference in bacteria is that some bacteria is good for the body!

Active transport is when molecules move against the concentration gradient
True or False

Answers

Answer:

this is true (:

Explanation:

Answer:

true

Explanation:

The transport of specific particles down their concentration gradient through a membrane by carrier proteins is known as facilitated diffusion. ... Facilitated diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentration gradient.

PLEASE HELP ME NOW !!!!! When a tornado approaches, some organisms flee and some organisms take shelter; but other organisms are unable to do either. Which of the following organisms would be at the most risk if a tornado passed through its habitat?

Answers

Answer:fish bugs

Explanation:

Answer:

small animals

A planet that has a solid, rocky surface. Terrestrial planets tend to be smaller than gas giants.

Answers

Answer: That is true

Explanation:

Answer:

True

Explanation:

Terrestrial planets tend to be smaller than gas giants.

If this was helpful please mark brainliest. Have a beautiful day.

Here is a cause: You look straight at a bright, shiny object when a beam of light bounces off of it. What is the effect?

Answers

The answer is reflection, since its bouncing
Since you said the light is bouncing off, this should tell you that the effect is “reflection” ❤️ hope this helps

.a i What does a food chain mean to you?
a. ii what is the difference between a prey and a predator?

b. i. Draw a food chain with 5 preys and 5 predators
ii. State what the producer, primary consumer, secondary consumer and the tertiary consumers are in any food chain.


2. State three reasons why people cut down trees and suggest three ways cutting down trees can be reduced.


3. What are the causes of air pollution.

4. What is acid rain?
b. What causes acid rain?
c. what forms does acid rain come?
c. State three effects of acid rain
d. State three ways we can solve acid rain problems.


5. What different ways can we reuse plastic containers
b. What is recycling?
c.How do we encourage people to recycle

Answers

Answer:

a.ii. A predetor is an animal that hunts or kills for food

A prey is the animal that the predetor hunts or kills for food

Explanation:

For example a rabbit is a prey because a fox (predetor) can hunt or kill it.

Answer:

a. You do this on your own

b. a prey is something that is hunted, a predator is a hunter.

b.i. not going to draw it but, here are some animals, cow, rooster, deer, rabbit, mouse, predators are cat, wolf, coyote, bobcat, leopard?

ii. Producers are always plants, primary consumers are grazers such as cows, secondary consumers are wolves, and tertiary consumers are snakes.

2.

a. For shelter

b. for paper

c. human in habitation/ construction

a.1Make shelters out of brick, or stones.

b.1 Make paper out of a mix of things, instead of mostly paper.

c.1 Make buildings taller, not longer, to preserve space, or, destroy old buildings and reuse the material!

3.

a. Acid rain is rain that is acid. Contains high levels of nitric and sulfuric acids.

b. Acid rain is caused by a chemical reaction which occurs when compounds like sulfur dioxide, and nitrogen oxides are released into the air!

c. Can appear in snow, fog, and tiny bits of material

Hope this helps!

Which of the following is not true about sound waves.
A. Sound waves travel through medium.
B. Sound waves are invisible.
C. Sound waves can move through water.
D. Sound waves can move through a vacuum.

Answers

Answer:

D. Sound waves can move through a vacuum.

Explanation:

Sound waves can move through a vacuum is an incorrect statement.  

• Sound is a kind of energy produced by vibrations. These vibrations generate sound waves that move via the mediums like water, air, and wood.  

• The sound waves are not visible as it is a form of energy, sound waves generate movement in the object, which continues till the particles run out of energy.  

• A sound wave mediates its energy through particle interaction, and a sound wave cannot travel via a vacuum, this shows that sound is a mechanical wave.  

Thus, sound waves cannot move through a vacuum. Option A is not true.

To know more about:

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Hello everyone, can someone help me out? I am being a dummy again

Answers

Answer:

D

Explanation: We can not see every star with our necked eye. But we come close with the Hubble space telescope. So D is correct.

Your answer is D hope this helps!

Using the image in the previous question, calculate the amount of force that the truck applied to the car if the truck was accelerating at a rate of 5 m/s2

1. What formula would you use?

2. Calculate the force of the truck hitting the car, use the correct unit for force:

3. Which law of motion supports your answer?

Answers

what does the image from the previous question look like?

Answer:1st law

Explanation:bc

Which statement below best describes the connection between photosynthesis and respiration? *
1 point
Both have the same products.
Both have the same reactants.
Both require energy from the sun.
The products of one are the reactants of the other.

Answers

Answer. D. The products of one of the reactance of the other.
Explanation. The products of respiration include: glucose, oxygen and carbon dioxide. On the other hand, the reactants of photosynthesis also include: glucose, oxygen and carbon dioxide. Hope this helps, let me know if it’s correct so others can use it:)
Good luck.

The hairs on Xander’s arms just started lying flat against his skin. Which is most likely his internal body temperature? 35°C 36°C 37.5°C 38.5°C

Answers

The answer is 38.5 because the temperature of the body is 37.5 so since he’s sweating the temperature would be increasing.

What is the fluid found in the extracellular matrix that holds cells together as tissue and allows them to communicate with one another?

Answers

The fluid inside of the Extracellular Matrix is Extracellular Fluid. Extracellular Fluid is also called ECF. ECF is mostly tissue fluid. It is also made up of a large amount of intravascular fluid. The remaining smaller amount of ECF is transcellular fluid.

hope i could help :)

Extracellular fluid

(I’m pretty sure hope this helps)

Which of the following lists the reactants (raw materials) needed for photosynthesis to occur? *
1 point
Carbon dioxide + water
Sunlight + glucose
Water + oxygen
Glucose + oxygen

Answers

Answer:

carbon dioxide and water

Explanation:

carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.  

Carbon dioxide + water

Does photosynthesis only occur during day time? Please explain if you answer my question!

Answers

Answer:

Photosynthesis happens during the day it needs the light.. Plants respire day and night.

Explanation:

photosynthesis only occurs during the day when there is sunlight.

yes, yes it does

it can only occur during daytime because thats when the sun is out giving plants the sunlight they need

ILL MA K BRANLIEST!!​

Answers

Answer:

Fungi

Explanation:

I just worked on this

Answer:

Fungi

Explanation:

Joel claims that “Bright White Toothpaste” removes tooth enamel stains better than all other brands. Which of the following should be documented as evidence to support his claim?
1. The amount of toothpaste used
2. The shade of teeth before and after brushing
3. The type of toothbrush used to brush teeth
4. The size of tooth

Answers

2. The shade of teeth before and after brushing

The independent variable in this instance is the bright white toothpaste, and if they’re claiming that it removes stains better than all, then that means that the dependent variable would be the shade of teeth!

The amount of toothpaste, the type of tooth brush, and the size of tooth are all variables of the experiment but will not determine if the claim is supported or not.

Hope this helps:)!

Which point(s) in the water cycle below best illustrate(s) water changing to a gas, and which term(s) could describe it?


1; sublimation or evaporation
1 and 2; evaporation only
3; precipitation or transpiration
3 and 4; transpiration only

Answers

Answer:

1 and 2; evaporation only

Explanation:

4 explains water evaporating turning into gas which is one and 2

the answer is the second one (1 and 2; evaporation only)

What process completed division in a animal cell?

Answers

Answer: cytokinesis

Explanation:

In animal cells, cytokinesis is achieved when a contractile ring of the cell microtubules form a cleavage furrow that divides the cell membrane into half.

Describe how an electromagnetic wave carries energy from place to place. Your description should include the terms electric field, magnetic field, and perpendicular.

Answers

Answer:

In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

brainliest pls

Answer:

In electromagnetic waves, energy is carried through vibrations of electric fields and magnetic fields. The fields The vibration of electric fields is perpendicular to the vibration of magnetic fields and the vibration of electric and magnetic fields is perpendicular to the direction in which light travels.

Explanation:

The self-regulation of the internal environment of organisms or cells is called _____________.

Answers

Answer:

Homeostasis

Explanation:

O∵ 3 ∵O

Homeostasis hope that helped you out

Why is it important to understand how different body systems interact when developing a training plan?​

Answers

Answer:

Because some people cant handle as much as other peopl.

Explanation:

You could overrun somebody by pushing them to hard. But you would'nt know if they had asthma in their lungs that just happened. Or if the person had an unknow health complicagtion.

you can’t make a plan without knowing how everything will react. you need to be sure everything will work together and do what you want it to for the best outcome

I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP

Answers

Answer:

Explanation:

Genotypes are the genetic makeup of an organism. Such as the alleles it possesses.

Phenotype is the physical or biochemical traits of an organism. In short their appearance.

I hope this helped!

Answer:

The sum of an organism's observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism's parents, the phenotype is not

Explanation:

hope that's what u were looking for

A student noticed that a potato left on the counter had begun to sprout. She decided to cut the potato into chunks and plant them. What is true about the plants that grew from this method? (Pick two)
All the plants are genetically unique.
All the plants have identical genetic information.
The original potato regenerated into several plants.
The new potato plants are the product of asexual reproduction.
The new potato plants are the product of sexual reproduction.

Answers

B and C are the ones I’d choose

pls help due soon: The graph below displays barometric pressure data collected over a 7-day period. When did a low pressure system move through the area?

Answers

between day 4 and 5 I think! because if you look at the graph between 4 and 5 is when it is a its lowest point

Answer:

I think its A

Explanation:

I think that because its when the graph gets the lowest

I need structural and behavioral adaptations, can someone explain how I find some or give me examples?

Answers

Answer:

The animals find or create a family after the animals find family they find shelter and hunt for food. After the parents have babies they teach the young ones how to survive out in the wild in about 2 weeks after they are born.

I really hope this helps you

And if you don't mind can you mark me brainliest?

Examples of behavioral adaptations are hibernation and migration. Examples of structural adaptations might be photosynthesis

In the diagram below, which of the following represents the products that should be shown in arrow "A"? *
1 point
Captionless Image
Oxygen + water
Glucose + oxygen
Carbon dioxide + water
Carbon dioxide + glucose

Answers

Explanation:

ydhkhfbnfbcufzncziiguv

Answer:

i am unsure the question here.

Explanation:

You decide to make strawberry banana popsicles. What change in state will need to occur

Answers

Answer:

solid to liquid to ice i think

Explanation:

Evaluate if knowing the type of the source of pollution helps make clean-up easier. Justify your opinion in 4-6 sentences and using at least 3 direct quotes from the article.

Answers

The easiest way to get rid of pollution and clean it up is by having everyone recycle cleaning up all the trash that is on the highways and stuff simply start using recyclable objects

Knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

What is the significance of knowing the types of pollution?

Knowing the source of pollution can make clean-up easier because it allows for targeted and effective removal of the pollutants as it identifies the specific source of the pollution rather than trying to address pollution throughout a wider area. It also helps in determining the most appropriate remediation technique to use, the cost of clean-up, etc.

Hence, knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

Learn more about pollution here.

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Which statement is true of both the desert and tundra biomes? They both have –

very low temperatures.
very low temperatures.

four seasons.
four seasons.

very low precipitation
very low precipitation

high biodiversity.

Answers

Answer:

Very low precipitation

Explanation:

Answer

Very low precipitation

Explanation:

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