Chemistry Middle School

can somebody help me out with this question?

Can Somebody Help Me Out With This Question?

Answers

Answer 1

Answer:

3 element

Explanation:

H2SO4  has 2 hydrogen atom, 1 sulfur atom, 4 oxygen atoms that are chemically bonded.

Answer 2
Sulfuric acid contains 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms. Sulfuric Acid H2SO4- A highly corrosive colorless to dark brown liquid.

Related Questions

A silver ring reacts with compounds containing sulfur in the air to form silver sulfide, a black substance that makes up the tarnish on the surface of silver objects. To remove that tarnish from the ring, students placed it in a pan lined with aluminum foil and added hot water. Baking soda was added to the hot water and stirred. Students made observations about the process. Which observation of this process provides evidence of a chemical reaction? *
A- Hot water heated the aluminum foil
B- The liquid solution changed color
C- The pan was lined with aluminum foil
D- The hot water cooled

Answers

Answer: B

Explaination:  The liquid solution changed color means is turned into a different substance with different properties. It is chemical change .

Liquid solution changed color provides an evidence of  a chemical reaction as it is accompanied by a chemical change.

What is a chemical change?

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical changes:

1) inorganic changes

2)organic changes

3) biochemical changes

During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

Learn more about chemical change,here:

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Formation of Water Reaction

Answers

Answer:

Oxygen had 2 before and 2 after.

Hydrogen had 4 before and 4 after.

Explanation:

The atoms are transferred, not transformed.

Answer:

hydrogen and oxygen combine to water by the formula 2h2+02 the formation reaction of this process is h2+1\2 02 how to make water from hydrogen and oxygen limiting reactant definition limiting reagent

Please answer this question correctly i really need it. Be serious.

Answers

Answer:

I think A but to be fair if you get it wrong I am a 6th grader

Explanation:

Answer:

The first one

Explanation:

ANSWER ASAP GIVING BRAINIEST FIVE STARS AND HEART!

In your own words describe some properties of energy.

Answers

I can describe one prop. of energy: it can not be created or destroyed. It can be transferred, or converted, though.

Answer:

Number 6 explains it

Explanation:

How are the convection currents found in Earth’s air and oceans similar?

Answers

in the atmosphere, as the air gets warmer, it rises up. when the air gets cooler , it sinks down. When the water gets warmer due to either sunshine or geothermic properties , it rises up as surface currents which have their own unique pathway


hope this helps :D
Both the ocean and atmosphere have rising air/water and cooling air/water.

Why might the presence of kudzu make it difficult for other plants to compete for resources?

Practice
Your answer should include at least 2 complete sentences.
Be sure to check your grammar and spelling.

Please dont do copyright from another website.

Answers

Answer:

Kudzu kills trees and other plants by smothering and choking them with its fast-growing vines, and as the heavy vines engulf trees or shrubs their weight can actually break or uproot trees. A kudzu vine can grow as much as a foot per day and sixty feet during a growing season.

Explanation:

the hot metal bar starts cooling as soon as it is pulled out of the forge (oven). where does the heat go? choose all that apply

a.) the tools in the form or conduction
b.) his skin in the form of radiation
c.) the air in the form of convection

Answers

Answer:

a) in form of conduction

GIVING BRAINLIEST FIVE STARS AND HEART!
In your own words explain the difference between potential energy and kinetic energy. Give an example of how one can be transformed into the other.

Answers

Answer:

Potential energy moves kinetic energy doesnt.

Explanation:

PLSSSS ANSWER!!!!!!!!!!!!!
how does a balanced chemical equation represent the conservation of matter in a chemical reaction?


a. the type of matter in the products is different from the type of matter in the reactants.


b. there are more atoms in the reactants than in the products.


c. there are fewer atoms in the reactants than in the products.


d. the number of atoms of each element in the reactants equals the number of atoms of each element in the products.

Answers

The answer is D hhshhhhshhnwnhwnhwnwhwhns

Plz I nee help will give brainliest

Answers

The answer is D. Happy to help ☺️

how does oxygen get in the water choose all that apply

Answers

Answer:

Oxygen dissolves in surface water due to the aerating action of winds. Oxygen is also introduced into the water as a byproduct of aquatic plant photosynthesis. And When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive.

Explanation:

I think the answer is b sorry if I’m wrong

You are given a model of various phases of the moon, as shown below. You can tell right away that it is inaccurate.


Write a scientific explanation that explains the flaw in the example below.

Answers

Answer: Whoops! We couldn't answer your question! But don't worry! You'll recieve an answer from someone else shortly.

ERR0RRR: Not enough info sent to user=AnswerQuestionBot

Why am I getting this answer?: You are getting this answer because our answering server could not answer this question properly.

Explanation:

First of all, depending on the order of which the phases in this picture are sequenced, C and D should be flipped. the 3/4 moon appears before the full moon.

Second of all, A, which is what's supposed to be a waxing crescent moon, the illuminated side should be a bit larger than what is shown. the illuminated area should be about 1/4 of the whole area of the moon circle. 

Hope this helps.

-The students in Ms. Wilson’s science class were asked to create analogies to describe the function of organelles in a cell. Of the statements below, which one best represents the organelle and its function? a. Camille described the nucleus as a donut because it has a hole in the middle of it. b. Simon described the chloroplast as a water filter because it filters out the bad things from entering a cell. c. Ricardo described the vacuole as a security guard because it allows things into the cell.
d. Angie described the lysosome as a vacuum because its function is to clean the cell.

Answers

Answer:

D. Angie described the lysosome as a vacuum because its function is to clean the cell.

Explanation:

Because vacuumes clean and so do that part of the organelles

I know this is a lot but I need help on just a few thanks!

Answers

Two elements that cause weathering are water and ice
shi i don’t even know

a large block of ice can heat up a small pool of liquid nitrogen. ice is 0 celcius but liquid nitrogen is -210 celsius. so the heat from the ice will warm up the nitrogen pool until they reach equilibrium. true or false?

Answers

I believe the correct answer is true

one example of a thermal conductor

Answers

Metal radiator. When hot water flows through the coils of the radiator , the metal heats up quickly by conduction and then radiates thermal energy into the surrounding air.


Answer: Metal radiator
I'd say metals are an example of a thermal conductor. This is because the electrons in metals freely move electrons which can be transferred into thermal energy very quickly and easily.

How many different design ideas of the puff car do you need to draw? Question 2 options:
A. 6 B. 1 C. 3

Answers

The answer is A hopefully it is ok ✅

How many times are you testing your prototype? Question 3 options:
10 3 0

Answers

All the time depending on the angle

Which chemical do you think would best maintain the pH of the pool water?

A.Bleach
B.Sodium Bromide
C.TriChlor
D.DiChlor

Answers

Answer:

B

Explanation:

Answer:

Its D.

Explanation:

I just did it on savvas.

What other property of water that relies on adhesion?
HINT: It involves defying gravity.

Answers

Answer:

Adhesion and cohesion are water properties that affect every water molecule on Earth and also the interaction of water molecules with molecules

Explanation:

*Answer* capillary action.


*Explanation* Adhesion of water

Water likes to stick to itself, but under certain circumstances, it actually prefers to stick to other types of molecules. Adhesion is the attraction of molecules of one kind for molecules of a different kind, and it can be quite strong for water, especially with other molecules bearing positive or negative charges.
For instance, adhesion enables water to “climb” upwards through thin glass tubes (called capillary tubes) placed in a beaker of water. This upward motion against gravity, known as capillary action, depends on the attraction between water molecules and the glass walls of the tube (adhesion), as well as on interactions between water molecules (cohesion).

Potassium (K) is found in Group 1. Fluorine (F) is found in Group 17. When these atoms bind, which will form the positive ion, and which will form the negative ion? Why? Hint: Refer back to the periodic table.

Answers

Answer:

The oppositely charged ions form an electrostatic attraction, which is the ionic bond. The compound potassium fluoride (KF) results, and since the potassium and fluoride ions have equal but opposite charges, the compound is neutral (but not the individual ions in the compound).

Explanation:

hope this helps i dont know if it will

Be serious with your answers please!!!!

Answers

Answer:

A is your answer-all of the reactants were liquid and evaporated

The answer is A :))))

is this loki on fairy tail because with blond hair and with glasses or without glasses (he has no glasses anymore)

Answers

Answer:

yes it is

Explanation

grey vs natsu

Please help! I need an answer ASAP, I will be marking brainliest.

When astronomers use an optical telescope to look at the center of our Milky Way galaxy, it is difficult to see through all the dust and gas. However, with the use of other waves in the electromagnetic spectrum they are able to pick up detail, such as protostars and remnants of supernovas. Which wave is used when studying temperature differences?


A) Radio Waves

B) Infrared Waves

C) Microwaves

D) Gamma Waves

Answers

B because A is for radios of course and C is thermal energy and D is radioactive
yeah it’s definitely B

A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the same floor at 3 m/s. Which ball has greater kinetic energy, and why?

plz hurry in the test nowwwwww!!!!!!

Answers

Answer:

In order to determine which ball has a higher kinetic energy, we first look at the formula of kinetic energy which is:

kinetic energy = 1/2 * mass * velocity²

The factors influencing the kinetic energy of an object are its mass and its velocity. Both of the balls have the same velocity; however, the red ball has a greater mass. Therefore,

The red ball has greater kinetic energy, because it has a greater mass.

We may also determine these quantitatively using the formula given and the kinetic energy of the yellow ball works out to be 9 J and that of the red ball is 13.5 J.

Explanation:

What is an ampere?Explain

Answers

Answer:

the SI base unit of electrical current.

Answer:

the SI base unit of electrical current.

Explanation:

i have no idea pls help ty 11 points

Answers

Happy Holidays! :)

[tex]\large\boxed{\text{Water.}}[/tex]

Looking at the information given in the description, the experiment is testing for the effects of the different salts on the growth of the plants.

This means that the type of salt is the independent variable,  or the variable being manipulated and tested.

To ensure fair results, some parts of the experiment would need to be kept the same, which is the control. The only answer choice that makes sense in this instance is A. water.

It is Water hope it helps you

.
A toy truck falls off a table. As it falls, the toy truck has potential energy and kinetic energy.

Explain how the toy truck can have potential and kinetic energy at the same time.

Answers

It would have potential energy because it has the potential to be falling at a faster rate. There are things that factor in such as falling speed and gravity as well which gives it the potential to fall at a faster rate. It also has kinetic energy because it is already in the motion of Falling down so it has that energy that would be the impact when it hits the ground. It can have both at the same time because it is already in motion with kinetic energy and it has the potential to fall at a faster rate.

As the toy falls off a table, it can have potential and kinetic energy at the same time because of the height (h) and velocity (v) of the object, respectively.

When the truck falls off a table it has potential energy (P) and kinetic energy (K) given by:

[tex] P = mgh [/tex]   (1)

[tex] K = \frac{1}{2}mv^{2} [/tex]   (2)

Where:

m: is the mass of the toy

g: is the acceleration due to gravity

h: is the height of the table

v: is the velocity of the toy

Kinetic energy (equation 2) is related to the velocity (v) of the moving toy while it is falling from the table.

Potential energy (equation 1) is due to the gravitational acceleration (g) exerted on the toy when it is at a height (h) above the table. This energy decreases as the object approaches the ground (where "h" is zero).

Therefore, the truck can have potential and kinetic energy at the same time because of the height and velocity of the toy, respectively.

Find more here:

https://brainly.com/question/999862?referrer=searchResultshttps://brainly.com/question/21288807?referrer=searchResults                

I hope it helps you!

When does a short circuit occur?

Answers

Answer:

A short circuit is when there is a low resistance connection between two conductors that are supplying electrical power to a circuit. This would generate an excess of voltage streaming and cause excessive flow of current in the power source. The electricity will flow through a 'short' route and cause a short circuit.

I dont really know so can someone help me :) (15 points)

Answers

Answer: 4

Explanation:

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