How many oxygen atoms are in the compound Al2O3?

Answers

Answer 1

Answer: As you know, the symbol of the Oxygen is "O"
And in a compound's empirical formula (In this case Al2O3), the number after each Symbol is how much atoms of this kind there is.

So, There is 3 Oxygens atoms in the Aluminium Oxide Al2O3

Hope this Helps :)

Related Questions

Based on the sign of E cell, classify these reactions as spontaneous or non spontaneous as written.? assume standard conditions. Ni^2+ (aq) + S^2- (aq) ----> + Ni (s) S (s) (nonspontaneous)? Pb^2+ (aq) +H2 (g) ----> Pb (s) +2H^+ (aq) (nonspontaneous)? 2Ag^+ (aq) + Cr(s) ---> 2 Ag (s) +Cr^2+ (aq) (spontaneous?) Are these correct?
A heterogeneous mixture is one in which substances are evenly distributed and have a uniform composition
Very Important!! Electron lender or borrower?i need to know if these elements lend or borrow electrons and how many do they lend or borrow.-sodium-phosphorus-potassium-oxygen-iodine-cesium-bromine-sulfur-magnesiumPlease answer!! Its really important..
Gravity is an example of what
Can the absolute energy states of the reactants (E1) and products (E2) be measured in a chemical reaction?

The material you should use in the windshield washer container is? usually a special windshield washing solution

Answers

The material you should use in the windshield washer container is a special windshield washing solution.

Using the wrong material in the windshield washer container can cause damage to the windshield and the washer system itself. A special windshield washing solution is specifically designed to clean the windshield effectively and safely, without leaving streaks or residue.

There are several types of special windshield washing solutions available in the market, each with its own set of benefits and features. Some of the most common types include:

1. Deionized water: This type of solution is distilled and purified to remove impurities and minerals that can leave streaks on the windshield. Deionized water is gentle on the windshield and the washer system, and it is effective in removing dirt and grime.

2. Isopropyl alcohol: This type of solution is a mixture of isopropyl alcohol and water. It is effective in removing dirt and grime, and it also helps to dry the windshield quickly. However, it can be too harsh on some types of windshields, so it is important to use it with caution.

3. Glycerin-based solution: This type of solution is made with glycerin, which is a natural humectant that helps to prevent the windshield from drying out. It is also effective in removing dirt and grime, and it leaves the windshield streak-free.

When choosing a special windshield washing solution, it is important to consider the type of windshield you have, as well as the climate and weather conditions in your area. For example, if you live in an area with high humidity, a glycerin-based solution may be the best choice, as it helps to prevent the windshield from fogging up.

It is also important to note that some special windshield washing solutions may not be compatible with certain types of windshields, such as those made of polycarbonate or acrylic. It is always a good idea to consult the manufacturer's instructions before using any solution in your windshield washer container.

In summary, the material you should use in the windshield washer container is a special windshield washing solution that is specifically designed for the type of windshield you have and the climate and weather conditions in your area. It is important to choose a solution that is gentle on the windshield and the washer system, and that is effective in removing dirt and grime.

Which of the following will result in a chemical change? A. Burning coal in a furnace
B. Drying wood in a shed
C. Melting ice to obtain water
D. Evaporating alcohol into vapor

Answers

Coal combustion causes a chemical change. Burning coal in a furnace will result in a chemical change. Therefore, option A is correct.

What is chemical change ?

A chemical change is the transformation of one material into another, the formation of new materials with different properties, and the formation of one or more new substances. It occurs when one substance reacts with another to form a new substance.

Coal combustion causes a chemical change. The main component, carbon, is converted to carbon dioxide when coal is burned. This process is irreversible.

When carbon is burned, it produces carbon dioxide, and hydrogen produces water. Each of these reactions generates a different amount of heat. Because this process cannot be reversed, coal combustion is a chemical change.

Thus, option A is correct.

To learn more about chemical change, follow the link;

brainly.com/question/2591189

#SPJ6

It would be /A/....because a chemical change is somthing that cant NOT be brought back to its areganal proproties.coal will never be able to be bavk the way it was!!

Of all boron atoms, 19.9%% are boron-10, which have a mass of 10.01294 amu. The other 80.1% of boron atoms are boron-11 and these have a mass of 11.00931. Calculate the average atomic mass of boron.

Answers

Answer:

10.81 amu

Explanation:

The average atomic mass of Boron can be calculated as follows :

$A=19.9\%\ \text{of}\ 10.01294 +80.1\%\ \text{of}\ 11.00931\n\nA=(19.9)/(100)* 10.01294 +(80.1)/(100)* 11.00931\n\nA=10.81\ \text{amu}$

So, the average atomic mass of boron is 10.81 amu.

Match the following definition to the type of solution it describes. unsaturated solution
saturated solution
supersaturated solution

A.
The amount of solute dissolved is less that the maximum amount the solution can hold.
B.
The amount of solute dissolved is the maximum amount the solution can hold.
C.
The amount of solute dissolved is more than the usual maximum amount.

Answers

unsaturated solution is The amount of solute dissolved is less that the maximum amount the solution can hold.

saturated solution is The amount of solute dissolved is the maximum amount the solution can hold.

supersaturated solution is The amount of solute dissolved is more than the usual maximum amount.

Molecular bonding cannot occur without..electrons, sunlight, protons, or neutrons?

Answers

Answer:

Molecular bonding cannot occur without electrons.

Explanation:

In order to be 100% correct, the answers should be electrons, protons and neutrons. Since moleculas are formed by atoms and atoms are formed by electrons protons and neutrons.

However, if we consider only the bonding itself, the most important atomic particle is the electron. Molecular or convalent bonding happens when atoms share electrons pairs to reach stability.

Elections
Molecular bonding occours when atoms share electrons

An atom of any element must contain(1) an equal number of protons and neutrons
(2) an equal number of protons and electrons
(3) more electrons than neutrons
(4) more electrons than protons

Answers

An atom of any element must contain "(2) an equal number of protons and electrons" but it should be noted that atoms can borrow electrons from one another.

An atom (which by definition is neutral) should have (2) an equal number of protons and electrons.
If the number of protons and electrons are not equal, it becomes an ion.The number of protons and neutrons can vary widely depending on what the substance is and depending on the isotopes.

Other Questions

An ion that consists of 7 protons, 6 neutrons, and 10 electrons has a net charge of(I ) 4- (3) 3+(2) 3- (4) 4+

One of the first steps toward currently accepted theories of our Solar System's formation and evolution was the general acceptance of the ______________ model, which placed the Sun at the center of the system and the Earth in orbit around it. This theory was prominently presented by ______________.

A gas that produces a "pop" with a burning splint is carbon dioxide. true or false

The two types of scales that are printed on the meter face of an analog VOM are A. single and double scales.B. polarized and non-polarized scales.C. positive and negative scales.D. linear and non-linear scales.