Chemistry Middle School

what element must combine with the metal for oxidation to take place?

Answers

Answer 1

lithium with oxygen

Answer 2

Lithium with oxygen

Related Questions

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

Answers

Answer:

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

Hello, could you help me to answer this question. Thank you very much, it would save me!
Answer the question, "Why is it best to put subscripts next to the symbols in the density and solubility formulas?"

Answers

The number of atoms of each kind is indicated by a subscript following the atom. If there is only one atom, no number is written. If there is more than one atom of a specific kind, the number is written as a subscript following the atom.

Hi so I’m actually stuck on this too:)

Ionic Bonds are formed when two elements _________________.

Answers

Answer:

the complete transfer of some electrons from one atom to another

Explanation:

when two elements lose or gain electrons to form an ion

how many joules would it take to raise 2 grams of AL 1 degree?

Answers

Explanation:

Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules

What is necessary for a metallic bond to form?

A) The atoms should be in close proximity.

B) The atoms should be far apart.

C) The electrons must be attracted to each other.

D) The nuclei must contain neutrons.

Answers

C thats the answer yes

List at least three properties of matter.

Answers

Answer: Mass, Volume, shape

Explanation: that’s the three basic properties of matter

Answer; Mass, Volume, Shape

How were the novae on Venus similar to the landforms in Gerya’s computer model?

Answers

Answer:

Explanation:

The model results matched the novae on Venus. This provided evidence that Gerya's idea that a thinner crust and higher surface temperature might allow melted rock to push up toward the surface, forming novae.

What parts are found in a plant cell but not in an animal cell? (Select all that apply.) cytoplasm chloroplasts cell membrane cell wall

Answers

cytoplasm and chloroplasts are found in a plant cell but not in an animal cell.

Cytoplasm and chloroplast

You may think of changes in climate occurring as you go north or south. This climber stayed at the same latitude and went up. What explains the difference in temperature and climate between the top and bottom of Mt. Kilimanjaro? Please explain in 3-5 sentences thank you for 81 points

Answers

Answer: I'm not really sure but I think its dew to the different heights and tempura going up and down and the flow of wind.

Explanation:

Answer:

Mountains make it possible for snow to be found at the equator. Why does the temperature become colder the higher up a Mountain? Generally the climate on mountains get progressively colder with increased altitude (the higher up you go).

Explanation:

Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex

Answers

Answer:

The answer is C.

Explanation:

Please give brainliest

Answer:

Explanation:

complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

Answers

Answer:

large atoms

Explanation:

its kinda obvious

Answer:

large atoms (B)

Explanation:

So i have a question for my assignment...

"The scientific theory of plate tectonics states that the Earth's crust is composed of many plates, or stabs of rock. Interaction of these plates have created different landforms, or geologic, features. Which of the following statements provides evidence for this theory?"

A: The city of Pompeii is perfectly preserved under volcanic ash following the eruption of Mount Vesuvius.

B: A large earthquake off the coast of Japan induces a wave that is over twenty feet high.

C: Fossilized marine creatures can be found at the top of the Himalayan Mountains.

D: An iceberg buckles the hull of the titanic and allows waster to enter between the steel plates.

i need the answer quickly, please and thank you! :)

Answers

Answer:

Explanation:

A tsunami doesn't just happen, it happens by an earthquake or the movement of the plates.

I believe the answer is A, “The city of Pompeii is perfectly preserved under volcanic ash following the eruption of Mount Vesuvius.”

What is the charge on the Cr in Cr2O72-

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

Part A: ____ objects are more dense
Part B: ____ Objects are less dense

Answers

Answer:

Part A: Solid objects with a greater mass per unit of volume are more dense.

Part B: Objects with a lower mass per unit of volume are less dense.

Explanation:

Not sure if this answers your question!

Answer:

A: solids

B: gases

Explanation:

Not sure if this is the answer you are looking for, but if it is hope it helps.

no problems

please solve this for me

Answers

The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.

For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.

A voltaic cell, also known as a galvanic cell or an electrochemical cell, is an electrochemical device that generates electrical energy through a spontaneous chemical reaction. It consists of two half-cells connected by an external circuit and a salt bridge or porous barrier that allows the flow of ions between the two half-cells.

Each half-cell consists of an electrode immersed in an electrolyte solution. The electrode is typically made of a metal or a conductive material, and the electrolyte is a solution containing ions that can participate in the redox (reduction-oxidation) reaction.

Learn more about electrochemical cell on:

https://brainly.com/question/23631454

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Answer:

The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.

Consider the reaction 2AI(OH)3 + 3H2SO4 Right arrow. X + 6Y. What are X and Y? X = AI2(SO4)3; Y = H2O X = AI2(SO4)3; Y = H2 X = AI2(SO3)3; Y = H2O X = AI2(SO3)3; Y = H2

Answers

Answer :

X = $Al_2(SO_4)_3$

Y = $H_2O$

Explanation :

Balanced chemical equation : It is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

The given chemical equation is:

$2Al(OH)_3+3H_2SO_4\rightarrow X+6Y$

As we know that when aluminum hydroxide react with sulfuric acid then it gives aluminum sulfate and water as product.

The balanced chemical reaction will be:

$2Al(OH)_3+3H_2SO_4\rightarrow Al_2(SO_4)_3+6H_2O$

Thus, X is $Al_2(SO_4)_3$ and Y is $H_2O$

Answer:

Explanation:

Which of the following is a chemical change?
A. boiling of water
B. melting a cube of ice
C. mixing water and oil
D. splitting water into hydrogen and oxygen

Answers

Answer: D, splitting water into hydrogen and oxygen is a chemical change.

Answer: D

Explanation: Water splitting is the chemical reaction in which water is broken down into oxygen and hydrogen

Please help me por favor :'(

Answers

More volume, takes longer to heat all the molecules.

plz download the doc and answer its due in 20 mins like bro wth

Answers

Answer:

and how do we know this is not a virus

Explanation:

sorry dude im just saying

Answer:

I agree with the comment above

sorry

Explanation:

I'll give Brainliest!!!
Which of the following is not a physical change?
A.sublimation of iodine C. tearing a piece of cloth
B. burning of wax in a candle D. dissolving sugar in a tea

Answers

Answer: B. Burning of wax in a candle

Explanation: Burning of wax is a chemical change due to the combustion of fuel in the presence of oxygen to produce carbon dioxide. A physical change part of it is when the wax of candle melts and the shape is lost.

The answer would be B.

what is the awnser??? (pic is below)

Answers

Answer:

C: Radiation. Arrow x shows radiation. I hope this helps u! If it's wrong, please let me know!!

Convection heat is the mode of heat transfer that is taking place in water.

A group of students wants to investigate the effects of plant moisture on the growth of caterpillars. The students fill three identical boxes with an equal number of a kind of leaf that caterpillars eat. The students keep the leaves in the first box dry, spray the leaves in the second box with two sprays of water, and spray the leaves in the third box with four sprays of water. The students then add four caterpillars to each box. Every day, the length of the caterpillar is measured, recorded and the results are averaged. What is the tested (independent) variable in this experiment?

Answers

In the given experiment an independent variable is the growth of caterpillar.

What are variables?

Variables are those quantities which will not have permanent value else they will have different values at different conditions.

Variables are also of two types:

Dependent variable: This variable changes its value according to the particular condition as in the given experiment leave is the dependent variable, because survival of leaf depends on moisture.Independent variable: This variable changes its value time to time but doesn't depend on any particular condition as in the given experiment caterpillar is the independent variable as their growth is not depend on any condition.

Hence caterpillar is the independent variable.

To know more about independent variable, visit the below link:
https://brainly.com/question/3764906

How do changes to the structure and function of proteins affect humans?

Answers

A protein's shape determines its function.

Explanation:

Because form determines function, any slight change to a protein's shape may cause the protein to become dysfunctional. Small changes in the amino acid sequence of a protein can cause devastating genetic diseases such as Huntington's disease or sickle cell anemia.

Shape determines function. If the shape is compromised, then the function is compromised.

Someone please help me with this question.

Keith is investigating how elements combine to form different types of matter. Write a statement regarding natter that is true.

A. Atoms can combine to form compounds.
B. The element make up the building blocks of all matter.
C. Every atom will bond to achieve a stable neutron-proton ratio.
D. There are more than 100 naturally occurring elements that make up all matter.

Answers

Answer:

D. There are more than 100 naturally occurring elements that make up all matter.

Explanation:

All matter is made up of elements, which are substances that cannot be broken down into simpler substances by chemical means. There are more than 100 naturally occurring elements, each with its own unique properties and characteristics. These elements combine to form compounds, which are substances made up of two or more elements that are chemically combined in a specific ratio. For example, water is a compound made up of two hydrogen atoms and one oxygen atom. Atoms can bond with each other in various ways to form compounds, but they do not always bond to achieve a stable neutron-proton ratio. The stability of an atom or compound depends on a variety of factors, including the arrangement of its electrons and the nature of the chemical bonds it forms with other atoms.

Answer:

D. There are more than 100 naturally occurring elements that make up all matter.

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 would you have to do to the substance in
cup A to make the molecules behave like the ones in
cup B? Use the word "thermal energy" in your
answer.

Answers

By using thermal energy which is also heat energy the substance in cup A will melt becoming a liquid behaving like the substance in cup B

Im not doing the math-

Answers

The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.

The answer is 0.36 m/s credit to the guy above me (give him Brainlyist) but I also had to do this assessment.

*WILL GIVE BRAINLIEST TO CORRECT ANSWER*
Question in picture**