0
Pb is lead, an atomic element
Same with Ar, argon
NaF, sodium fluoride, is an ionic compound
CH4 is methane, a molecular compound << this one
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Which formula represents a nonpolar molecule?
H-H
Which is the most polar molecule 1 bf3 2 h2o 3 co2 4 cf4 5 ch4 6 ar?
2
Is Ar a atom or molecule?
Ar is an atom. It is the chemical symbol for argon, a noble gas that exists as individual atoms rather than bonded together in a molecule.
What is chemical formula of methane and argon?
The chemical formula for methane is CH4, and the chemical formula for argon is Ar.
What is the molecule for air?
Nitrogen (N2) 78.084 % Oxygen (O2) 20.9476 % Argon (Ar) 0.934 % Carbon Dioxide (CO2) 0.0314 % Neon (Ne) 0.001818 % Methane (CH4) 0.0002 % Helium (He) 0.000524 % Krypton (Kr) 0.000114 % Hydrogen (H2) 0.00005 % Xenon (Xe) 0.0000087 %
What are the similarities between atoms and molecules?
They are similar in the way thatthey are both considered individual units of a substance. However, at times, a molecule is an atom. For example, Argon (Ar) a noble gas is an atom, but it is also a molecule as it already has a full valence shell, thus it does not need to bond with other elements.
What is the largest molecule located on a DNA strand?
The Largest molecule located on a hair strand, Is a kenesis Archaei (Ke-Nee-Ses- Ar-Chay-Ai)
What does not exist as a diatomic molecule?
Noble gasses, from group 18: He Ne Ar Kr Xe Rn
What is a substance that seperates in water forming ions that react with hydrogen ions?
These ar soluble bases.
Which gases are compounds and elements?
Gaseous compounds: ammonia (NH3), hydrogen sulfide (H2S), methane (CH4) etc.Gaseous elements: xenon (Xe), hydrogen (H), argon (Ar) etc.
Is Salt a pure substance ar a muxture?
Salt is a pure substance, i.e. it is an ionic compound consisting of two elements sodium and Chlorine. The formula is NaCl.
How many molecules of O2 ar needed in the chemical formula for burning methane?
You should set up a balanced equation for the combustion of CH4 first: CH4 + 2 O2 --> CO2 + 2 H2O Now you see that for every 1 mole of CH4 you have 2 moles of O2. Therefore if you have 2.67 L of CH4, you'll have 5.34 L of O2. You can also assume it's at STP just to check, since it all cancels out in the end: 2.67L CH4 (1mol CH4/22.4L)(2mol O2/ 1 mol CH4)(22.4L/1mol O2)= 5.34L O2.
