What is the element Ar classified as in the periodic table?

Answers

Answer 1

Answer: Ar is classified as Argon in the periodic table it is a Noble gas having atomic number 18

Answer 2

Answer: Me not looking at periodic table i believe its Argon.

Related Questions

A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 61.0°C, what is the specific heat of the substance?
Compare the shape and volume of solids, liquids and gases.
Permafrost soil (gelisol) is _______.a. resistant to erosion b. fragile c. rich in microorganisms d. a fast developing soil.
How did us participation in ww1 affect the american civilian population
Compute 4.659×104−2.14×104. Round the answer appropriately.

Steel is made mostly of iron and carbon, though sometimes it can containa. tin.
b. nickel.
c. brass.
d. cadmium.

Answers

The correct answer is B. Steel is made mostly of iron and carbon, though sometimes it can contain nickel. Alloying elements are being added to steel to modify and enhance the characteristics of the steel. Other elements include manganese, chromium, boron, titanium, etc.

Answer:

Taskmasters is Correct. The answer is Choice B.

I just took the quiz and got it Correct.

A compound has a molar mass of 90 grams per mole and the empirical formula CH2O. What is the molecular formula of this compound?

Answers

CH2O = 12 + 2 + 16 = 30
90 /30 = 3
3 x (CH2O) = C3H6O3

Final answer:

The molecular formula of a compound with an empirical formula of CH₂O and a molar mass of 90 g/mol is C₃H₆O₃. This is found by dividing the compound's molar mass by the molar mass of the empirical formula, and using the ratio to multiply the subscripts in the empirical formula.

Explanation:

The molecular formula of a compound can be determined using the molar mass and the empirical formula given. The empirical formula for the compound is CH₂O, which has a molar mass of approximately 30 g/mol (12 g for C, 1 g for H, and 16 g for O). If the molar mass of the compound is 90 g/mol, we can find the ratio of the molar mass of the compound to the empirical formula by dividing 90 g/mol by 30 g/mol, which gives us 3.

This means the molecular formula of this compound is three times the empirical formula. So, to obtain the molecular formula, you multiply each subscript in the empirical formula by 3. If you do this for CH₂O, you get C₃H₆O₃ which is the molecular formula of the compound.

Learn more about Molecular Formula here:

brainly.com/question/36480214

#SPJ3

juan is planning an investigation about natural reserves. which of these is most likely to be a reliable source of scientific information on the internet

Answers

It depends on the credibility and reliability of the said source. Thus, a primary source is a type of obtaining or sourcing information after the phenomenon occurred at that particular time and when photographs are the first-hand materials that were able to capture that specific moment which then can convey the information. Primary resources also include –newspapers, journal articles, magazines and etc. These information are very vital for its credibility and reliability.

Answer:it’s .gov

Explanation:thanks me later took the test

How many atoms are there in 1.3 x 10^22 molecules of N(O)2

Answers

1 molucule of NO₂, have 1 atom of N, and 2 atoms of O, therefore, 1 molecule of NO₂ have 3 atoms.

1 molecule of NO₂--------------------3 atoms
1.3 * 10²² molecules----------------- x

x=(1.3 * 10²² molecules * 3 atoms) / 1 molecule of NO₂=3.9 * 10²² atoms.

Answer: in 1.3 * 10²² molecules of NO₂ there are 3.9 * 10²² atoms.

Which statement describes a chemical property of the element magnesium?(1) Magnesium is malleable.
(2) Magnesium conducts electricity.
(3) Magnesium reacts with an acid.
(4) Magnesium has a high boiling point.

Answers

Answer: option 3) magnesioum reacts with an acid.

Justification:

1) Malleability, conduction of electricity, and boiling point are physical properties.

2) Maleability is the ability to be transformed into foil. It is just a change in form. So, it is a physical property.

3) The metals conduct electricity in virtue of the array of the atoms, which permtis the flow of the electrons, but it does not involve a chemical change, so it remains being a physical proerty.

4) Boling point is the temperature at which a substance passes from liquid state to gas state, which are just different forms of the same substance. So, it is other physical property.

5) Reaction with an acid is indeed a chemical transformation: the metal (magnessium) will form a chemical bond with some spieces of the acid to form a new compound. This is a chemical reaction in virtue of the chemcial properties of the substance (its ability to react with acids)

Magnesium reacts with an acid.

certain solution has [OH-] = 4 x 10-3. Calculate the concentration of [H3O+] and the pH of the solution

Answers

Kw = 1 x 10⁻¹⁴

Kw = [ H₃O⁺] [ OH⁻]

1 x 10⁻¹⁴ = [ H₃O⁺] * 4 x 10⁻³

[H₃O⁺] = 1 x 10⁻¹⁴ / 4 x 10⁻³

[H₃O⁺] = 2.5 x 10⁻¹² M

hope this helps!

Other Questions

The positively charged particles found in the nucleus of an atom are called ______.a. nuclear forces. b. electrons. c. protons. d. subatomic particles.

Starting a fitness plan slowly will lead to better results than starting out quickly TRUE OR FALSE

The molar mass of I2 is 253.80 g/mol, and the molar mass of NI3 is 394.71 g/mol. How many moles of I2 will form 3.58 g of NI3?

Plz can someone help with this I don't understand how the answer is 3000dm3 Thanks