Regarding the formula Al2O3 which of the following is accurate?A. The coefficient 3 indicates that there are a total of three atoms of oxygen present in the substance.
B. The subscript 2 indicates that two atoms of oxygen are present in the substance.
C. The chemical symbol Al indicates that oxygen is present in the substance.
D. The subscript 2 indicates that two atoms of aluminum are present in the substance

Answers

Answer 1

Answer: The question says,'regarding the formular Al2O3, which of the following is accurate. The correct option is D. The subscript indicate that there are two atoms of aluminium in the compound. The subscript 3 indicates that, there are three atoms of oxygen in the molecule. The figure 3 attach to oxygen is a subscript not a coefficient, that is why option A is not correct.

Answer 2

Answer:

Final answer:

In the formula Al2O3, the subscript 2 indicates the presence of two atoms of Aluminium, and the subscript 3 indicates the presence of three atoms of Oxygen.

Explanation:

The formula Al2O3 is for aluminium oxide. The coefficient and subscript in this formula tell us about the number of atoms of each element present in the compound. In this case:

The chemical symbol Al indicates the presence of Aluminium.
The subscript 2 (in Al2) indicates that there are two atoms of aluminum present in the substance.
The chemical symbol O indicates the presence of Oxygen.
The subscript 3 (in O3) indicates there are three atoms of oxygen present in the substance.

So, the correct answer to the question is, the subscript 2 indicates that two atoms of aluminum are present in the substance (option D).

Learn more about Chemical Formulas here:

brainly.com/question/36379566

#SPJ6

Related Questions

What element is used in a liquid metal used in thermometers
What happens if you overmix muffins?
Which element is a solid at STP?A. H2B. I2C. N2D. O2
The solute will dissolve quicker if the solute is more?A. shaken.B. saturated.C. cooled.D. settled.
Radical chlorination of pentane is a poor way to prepare 1-chloropentane, but radical chlorination of neopentane, (CH3)4C, is a good way to prepare neopentyl chloride, (CH3)3CCH2Cl. Why? ...?

How many orbitals are in the second shell?
a. 1
b. 2
c. 4
d. 8

Answers

The correct answer is C. 4

There are 4 orbitals in the second shell, and the number increases in further shells.

Answer:

Explanation:

How many moles of NaCl are contained in 100.0 mL of a 2.0 M solution?

Answers

Answer: -

0.2 moles of NaCl are contained in 100.0 mL of a 2.0 M solution

Explanation: -

Strength of NaCl = 2.0 M

Volume of NaCl solution = 100.0 mL

= $(100)/(1000)$

= 0.1 L

Number of moles of NaCl = volume of NaCl x Strength of NaCl

= 0.1 L x 2.0 M

= 0.2 moles

0.2 moles of NaCl are contained in 100.0 mL of a 2.0 M solution

Write the complete name (prefix + unit) for each of the following numerical values:a) 0.10 g

b) 1 × 10^-6 g

c) 1000 g

d) 0.01 g

e) 0.001 g

f) 1 × 10^9 g

Answers

The (standard) unit of mass is gram. So, the complete name of each of the units is the name of the numerical value followed by the term "gram".

The complete names are:

1 decigram
1 microgram
1 kilogram
1 centigram
1 milligram
1 gigagram

In numerical representation of numbers, the meaning of the given numbers are:

$0.10 \to$ deci

$10^(-6) \to$ micro

$1000 \to$ kilo

$0.01 \to$ centi

$0.001 \to$ milli

$10^9 \to$ giga

To complete the names, we simply add "gram" to the above representations. So, we have:

$0.10 \to$ decigram

$10^(-6) \to$ microgram

$1000 \to$ kilogram

$0.01 \to$ centigram

$0.001 \to$ milligram

$10^9 \to$ gigagram

Read more about names of numerical values at:

brainly.com/question/10840907

During a chemical reaction substances called reactants During a chemical reaction substance called reactants are combined to form a new substance called products which of the following are currently describes reactions and products of a chemical reaction

Answers

Answer:

During a chemical reaction, substance called reactants are combined to form a new substance called products.

this sentence describes reaction and products of a chemical reaction

It is common for students to overshoot the endpoint, meaning they add too much NaOH(aq) from the buret, which causes the solution to turn bright pink. What specific impact does this mistake have on the percent of acetic acid result?

Answers

Answer: the percentage of acetic acid will be low.

Explanation: The major aim during titration of acids and bases is to determine the endpoint , that is exact point where the acid in the beaker changes colour, (in this case, pink )with an additional drop from the burette containing the base, since it is usually difficult to mark the equivalence point that tells us when all the substrate in the beaker has been neutralized completely with the buretted substance.

Overshooting the end point is an error which can occur when the person involved in the the titration accidently goes beyond this endpoint by adding too much of the substance(base) from the burette into the beaker missing the exact endpoint.

This implies that the person has added too much of the burreted liquid, ie the base than required , making the acid in the beaker to continue to react resulting to a lower concentration of the acid (acetic acid) with excess base.(NaOH)

Which statement defines the temperature of a sample of matter?1) Temperature is a measure of the total electromagnetic energy of the particles.
2) Temperature is a measure of the total thermal energy of the particles.
3) Temperature is a measure of the average potential energy of the particles.
4) Temperature is a measure of the average kinetic energy of the particles.

Can someone help me with this?

Answers

The correct answer is D.

It is known with definition of temperature.
Temperature of a system is average energy of microscopic motions of a single particle.
It's average kinetic energy.

Other Questions

Describe the general location of the electrons in a covalent bond

How much heat energy is produced by 0.5 Wh of electrical energy

Which two elements have the most similar chemical properties?(1) Be and Mg (3) Cl and Ar(2) Ca and Br (4) Na and P

What is the difference between a cup of tea at 95°C, and a drop of tea at 95°C?