Chemistry Middle School

what is the oxidation number of sulfur in CaSO3 ( 3 is a subscript)?

Answers

Answer 1

Answer:

It’s +6

Explanation:

Oxidation number refers to the total number of electrons gained or lost during a chemical reaction.

In the example above sulphur has an oxidation number of +6 while the oxidation number for the calcium in CaSO4 is +2 the oxidation number for oxygen is -2.

Related Questions

What is the sub-chemichal for sub-sonic nitrogen chemichal element?

Answers

Molecular nitrogen (N2) is a chemical element whose structure is composed of

two nitrogen atoms which are tightly bound together

What is an element?

An element is a substance which cannot be split into simpler units by an ordinary chemical process.

Below are some examples of elements:

HydrogenHeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorine

So therefore, molecular nitrogen (N2) is a chemical element whose structure is composed of two nitrogen atoms which are tightly bound together

Complete question:

What is the structure of the chemical element nitrogen?

Learn more about chemical elements:

https://brainly.com/question/6258301

#SPJ1

I just got a new phone and it says that he works for you too but it’s so much fun and he’s like he’s going on the side lol I love it too

What does this diagram represent?

A) a turbine
B) a motor
C) an electromagnet
D) a generator

What does this diagram represent?A) a turbineB) a motorC) an electromagnetD) a generator

Answers

Answer:

Option (D) A Generator

Explanation:

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.


Learn what is a Generators here

Visit —

https://brainly.com/question/12950635

Hope my answer helps you✌️

Mark BRAINLIEST

D generator

It is a generator since the electromagnetic radiation makes the coil and rod to spin

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

What might happen if an octopus we're chased by a predator

Answers

Answer:

They will try to defend themselves

Explanation:

Answer:

octopuses will shoot a dark liquid, sometimes called ink, at the thing that scared them. ... If an octopus does get caught — no problem. They can lose arms and regrow them.

Explanation:

Here is a picture and diagram of the question

Here is a picture and diagram of the question
Here is a picture and diagram of the question

Answers

Maybe not all of it because the heat would go back in forth in the aluminum bar and some of it will be given and some may even be lost because heat is just atoms moving faster and eventually those atoms will slow down

PLEASE HELP!!!! IT'S DUE TODAY!!!

PLEASE HELP!!!! IT'S DUE TODAY!!!

Answers

Answer:

I think it might be C

Explanation:

Im not sure though

Please tell me if im wrong

I’m pretty sure the answer is B
Hope this helps

statement to analyze and classify as science protoscience pseudoscience or non-science the statement i classified is

Answers

Answer:question?

Explanation:

The Dart Frog is a brightly colored frog. These bright colors could mean that this frog is poisonous,
warning predators to stay away. Plants in the rainforest are normally crowded and have very little
space. The big leaves of a Hosta Plant allow the plant to receive as much sunlight as possible when
the sun is out.
What type of adaptations are these? Compare and contrast the adaptations of the Dart Frog and the
Hosta Plant. Your answer should be 3–4 sentences long.

Answers

Answer: hope this helps..-

compare=

they both are in the same biome

they're both slow in the food chain

contrast=

one is an amphibian, while the other is a plant

their food category is different

Explanation:

Hope this helped you! May i have brainliest please?  And Have a nice day! :3

Please help like please

Please help like please

Answers

Both items achieve a more stable configuration

these days cloths made out of a mixture of synthetic fiber and natural fibers are more popular than those made purly out of synthetic fiber. Discuss the reason for this

Answers

Answer: Clothes purely made of synthetic fibers are not comfortable in a hot and humid environment as they don't have the property to absorb water or sweat quickly so their water-resistant property makes them unsuitable for hot humid environment .

Explanation:

Mixing of synthetic fiber and natural fibers enhances the properties such as strength, elasticity, and ease of ironing and washing. Generally in hot environments it is preferred to wear a mixture of synthetic and natural fiber than wearing only clothes made from synthetic fiber .

Moreover, mixing synthetic fibres with natural fibres enhances their properties, such as strength, elasticity and ease of washing and ironing. Hence, these days clothes made out of a mixture of synthetic fibres and natural fibres are more popular than those made purely out of synthetic fibres.

trigger warning/ su1cide
-
-
-
how do you break up with someone over text because hes saying he’ll k1ll himself if you dont do what he wants you to do?

Answers

Answer:

tell his family about how he's manipulative or make him realize that even if you guys are still together you don't have feelings anymore

Answer:

what is the thing he wants you to do? this is hard. do you think he is serious and he will actually do it? if not, it's not worth the pain of staying in a relationship.

Explanation:

please helpp, its just true or false

please helpp, its just true or false

Answers

Answer:true

Explanation:

How’s life going
Yes I would like to know
No guys this is not for school

Answers

Answer:

Good.

Explanation:

djsbeusjsbwjdkdjxjwnsjdjd

Answer:

Hi!

Its okay i geuss. lots of school work :\

what about you? :)

thanks for the points!

Which piece of evidence did Alfred Wegener's original theory of continental drift have access to?

Answers

Answer  mountains in North America appearing to match up with mountains in Northern EuropeExplanation:

1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL

Answers

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

the correct answer is A 4.8 mL

What is the series of energy transfers shown in the picture below?

A) chemical to mechanical to electrical to thermal
B) mechanical to chemical to thermal to electrical
C) electrical to thermal to mechanical to chemical
D) thermal to mechanical to electrical to chemical

What is the series of energy transfers shown in the picture below?A) chemical to mechanical to electrical

Answers

Answer:

The correct answer is A.

A is the correct answer

Use the picture below to answer the question.
Comparing the two waves, wave B has a...

A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.

Use the picture below to answer the question. Comparing the two waves, wave B has a...A) higher frequency.B)

Answers

Answer: D) longer wavelength.

Explanation:

A) higher frequency and C) a shorter wavelength.

As far as I know, you calculate frequency on a graph using the number of peaks you can see. Since the wavelength is shorter (the distance between two peaks on the wave), the frequency should also be higher as more fit on the graph.

PLSSSSSSSS HELP MEEEEEEEEEEEEEE

PLSSSSSSSS HELP MEEEEEEEEEEEEEE

Answers

Answer: The answer to your question is B,C,D.

Answer: i think A, B, D?

Explanation:

In Lesson 4.1, you learned that the machine used to fuel missions to Titan is not making enough liquid oxygen. We are waiting for a more detailed report from the Universal Space Agency. Before we receive the report, however—and now that you know how the liquid oxygen machine is supposed to work—what are some ideas you have about what could be causing it to malfunction? (I need about three sentences)

Answers

Answer:

Some ideas which could be causing it to malfunction is an increase in temperature of the titan.

What is Boiling point?

This is defined as the constant temperature at which a liquid starts changing into gas.

Liquid oxygen has a high boiling point which means the Titan will have to be hotter for it to vapourize. This may have led to an increase in the production of oxygen gas and reduction in liquid oxygen production.

Explanation:

you welcome

As the water level inside the reactor vessels went low enough to expose at least the top core regions, a chemical reaction between water and the metal cladding of the fuel rods in the reactor cores is most likely what produced the hydrogen gas.

What causes hydrogen explosion?

The escaping hydrogen self ignited, resulting in an explosion and flames. The explosive mixture of hydrogen and oxygen that spontaneously ignited inside the HP feed pipes was what caused the initial explosions.

What drawbacks exist with energy generated from hydrogen?

But, hydrogen has serious safety hazards of its own. It is very combustible and has an ignition energy 20 times lower than that of gasoline or natural gas. Cell phones have the ability to ignite it.

To know more about fuel rods visit:-

brainly.com/question/29824258

#SPJ1

I’ll give brainliest If answered correctly

Losing heat to the environment can be a good or a bad thing. For example, on a hot day, you would want to lose some of the heat from your body after playing outside. This is an example of when losing heat would be beneficial to you. However, on a cold day, you would not want to leave the door or window open and lose heat from inside your house.

-Answer this question-

What are some ways to prevent heat energy "loss" in matter?

What are some real-life examples of when you want to keep heat energy from being lost to the environment?

Answers

The best way to prevent heat loss is thermal insulation. Insulation means creating a barrier between the hot and the cold object that reduces heat transfer by either reflecting thermal radiation or decreasing thermal conduction and convection from one object to the other.

Water bottles (thermoses) have two layers with vacuum between them in order to prevent heat loss through conduction and radiations. Similarly, windows are double glazed in order to provide insulation. These windows have dry, trapped air between two panes of glass to prevent heat loss through conduction and convection.

What will most likely happen to a native species if an exotic species out competes it for food?

The native species will become extinct
The native species will adapt to less food
The native species will find another food source
The native species will use the exotic species for food :>

Answers

Answer:

When an exotic species came out to competes it for food then the native species will become extinct

Explanation:  the answer is c i think

Organisms in the abyss are very different from the surface organisms we live with. What factor listed below is NOT a reason for this?

A; Temperature is much lower in the abyss


B; Sunlight does not reach to the abyss


C; Organisms in the abyss are aliens


D; Pressure is very high in the abyss

Answers

Answer:

The answer is C

Explanation:

Good luck!

Answer:

llega al abismo C; Los organismos en el abismo son extraterrestres

Explanation:

Question 25———-A, YA are two isotopes of element A.
Difference between the number of neutrons
in the isotopes is?

Question 25-A, YA are two isotopes of element A.Difference between the number of neutronsin the isotopes

Answers

Answer:

Option C. 1

Explanation:

Step 1:

Determination of the Neutron of both isotopes. This is illustrated below.

For isotope y xA:

Mass number = y

Atomic number = x

Neutron =..?

Atomic number = proton number = x

Mass number = Proton + Neutron

y = x + Neutron

Rearrange

Neutron = y – x

For isotope (y + 1) xA:

Mass number = y + 1

Atomic number = x

Neutron =.?

Atomic number = proton number = x

Mass number = Proton + Neutron

y + 1 = x + Neutron

Rearrange

Neutron = y + 1 – x

Step 2:

Determination of the difference between the neutron number of both isotopes. This is illustrated below:

For isotope y xA:

Neutron number = y – x

For isotope (y + 1) xA:

Neutron number = y + 1 – x

Difference in neutron number

=> (y + 1 – x) – (y – x)

=> y + 1 – x – y + x

Rearrange

=> y – y + 1 – x + x

=> 1

Therefore, the difference in the neutron number of both isotopes is 1

The graph shows global iron ore distribution in 2014. Which statement is a scientifically sound conclusion to draw from this data?



A. Geological processes caused iron ore distribution to be similar across the globe.

B. Australia has more favorable geological processes for iron ore production than the United States.

C. Brazil is more efficient at iron ore mining than the United States.

D. Canada has as many iron ore reserves as Australia, but Canada’s reserves haven’t yet been mined.

The graph shows global iron ore distribution in 2014. Which statement is a scientifically sound conclusion

Answers

Answer:

the Answer is option B

Explanation:

got 5/5 on my test score

Answer:

since Australia has a higher number of coal it is the answer.(Natural Resources: Mastery Test) fingers crossed i get it right.

Explanation:

What kind of change, physical or chemical, is happening when wood burns? How can you tell?

Answers

Answer:

Wood changes chemically to carbon dioxide when it burns and leaves a residue of ashes. These ashes cannot be changed back to wood. So it is a chemical change.

chemical
physical means it can go back to its shape; chemical it cannot.
for example when wood burns you can’t get that wood back to before it was burned!

hope this helps!

200 milliliters is equal to:

Answers

Answer:

0.2 Litres

Explanation:

There are 1000 milliliters in a liter so 200 millimeters is equal to (200/1000) 0.2 litres.

Not quite sure what type of answer you were looking for but I hope this hoped anyway!

Answer:

O. 2 litres /200 cm³

Explanation:

Litre:200 divided by 1000 coz one litre is equal to 1000 millilitres and Inorder to convert between smaller to bigger units you divide. Cubic centimetre:because one cubic centimeter equals one millilitres therefore 200ml will be equal to 200cm³

Which word names melted rock and minerals found beneath Earth's crust?

A. lava
B. magma
C. rhyolite
D. gabbro

Answers

Magma is the answer
magma is the answer

A dog is exposed to radiation and it caused damage to a cell’s DNA. This genetic change results in the controls on mitosis not working. Which one of the following is most likely to occur after this damage?
Responses


An infection in the blood spreads results in sepsis ,

A blood clot stops oxygen to the heart, causing a heart attack,

Cells produce new versions of a virus to allow it to spread throughout the body

The cell dividing rapidly and creating a cancerous tumor

Answers

I suppose the last option to be correct.

Answer:

The cell dividing rapidly and creating a cancerous tumor

Explanation:

The initial water volume in this container was 10.0 mL. When the key was submerged, 3 volumes of displaced water were collected: 0.7 mL, 0.8 mL, and 0.9 mL. What is the volume of the key?
How did you find the volume?

Answers

The volume of the key is 0.8 mL.

Volume of objects using sinker method

An object that floats on water will displace its own volume. In the same vein, an object that sinks in water will displace its own volume.

Thus, in order to find the volume of an object that sinks in water, measure the volume of water that it displaces.

In this case, the water displaced by the key was measured 3 times. The average of the 3 readings will give the volume of the key.

Volume of the key = 0.7 + 0.8 + 0.9/3 = 0.8 mL

More on volume of objects can be found here: https://brainly.com/question/11685836

#SPJ1

Answer:

Explanation:

so 10.0ml -3ml

0.7+0.8+0.9ml = 0.0024 liters

Zavia climbed a mango tree to get the ripest mangoes. He got stung by a bee. What do you suggest for Zavia to put on the bee sting for neutralization to occur?

1 Ice
2 Baking soda
3 Benadryl
4 Vinegar

Answers

Answer:

Baking soda

Explanation:

Answer: Baking Soda




1 ice
2 baking soda
3 Benadryl
4 vinegar


The answer is baking soda
Other Questions
Please look at the image Three dimensions of the relationship-level of meaning. [1] Our houe wa once a top on the Underground Railroad. [2] It wa common for an enlaved peron to top there on their way to the North. [3] The Underground Railroad were a network of hiding place. [4] The cellar beneath our houe ha a ecret door that wa intalled to trick lave catcher Write the function that models each variation. Find z when x=4 and y=9 . z varies jointly with x and y . When x=2 and y=3, z=60 . what is the landmark if duomo spencer accountants provides accounting services to businesses and individuals. they build their budget around the number of hours each accountant expects to bill their clients. in contrast, weaver carpet cleaners provides carpet cleaning services to businesses and individuals. they build their budget around the estimated square feet of carpet that they will clean. what is the difference between these two companies? The answer please thank uu 3. How does the speaker feel about the road hedidn't take? Cite evidence from the text tosupport your answer.HELP PLEASE, ILL MARK BRAINLIEST AND U GET POINTS (poem in picture) solve pls branliest. find the slope between the following points (3, -4) (-2, 6) In addition to an interest in religious reform, the princes of Germany supported Martin Luther's ideas forcultural and social reasons:O political and economic reasons.ethical and philosophical reasons.educational and intellectual reasons. The nurse is teaching a newly hired nurse about protocols. which information from the new nurse indicates a correct understanding of the teaching? What is the length of a rectangle with an area of 8 1/0 square feet and a width of 2 1/4 feetA. 1/8 ftB. 3 3/5 ftC. 4 2/5 ftD. 1 5/72 which of these works raises awareness about the large number of violent deaths in mexico city? ionic compounds are brittle because the strong attractive forces a. cause the compound to vaporize easily. b. allow the layers to shift easily. c. hold the layers in relatively fixed positions. d. keep the surface dull. Which of the following holds that students with exceptionalities be placed in schools and classrooms in a similar ratio of the occurrence of exceptionality within the general population?A. The principle of natural proportionsB. The principle of natural ratiosC. Age- and grade-appropriate placementsD. The continuum of placements HELP ASAPWhat is the KEY to the health of earths Tropical Rainforests? If f(x)=3x-7, find f(5). * Barber remarks that "there are, of course, those who benefit from the bankruptcy of public education and the failure of democracy." Who might these people be? Do you agree with Barber that they are no more to blame than those of us who are merely complacent? Why or why not? Which of these is an example of information being put into a song to make iteasier to remember?