A compound of X and Y is 2/3 X by mass. The atomic mass of element X is 3/4 the atomic mass of element Y.
A compound of X and Y is 2/3 X by mass. The atomic mass of element...
A compound of X and Y is ½ X by mass. The atomic mass of element X is ¾ the atomic mass of element Y. What is the empirical formula? Please explain in detail.
You have two distinct gaseous compounds made from element X and element Y. The mass percents are as follows: Compound I: 30.17% X, 69.83% Y Compound II: 63.35% X, 36.65% Y In their natural standard states, element X and element Y exist as gases. (Monatomic? Diatomic? Triatomic? That is for you to determine.) When you react "gas X" with "gas Y" to make the products, you get the following data (all at the same pressure and temperature): 1 volume "gas...
Classify each substance as an atomic element, molecular element, molecular compound, or ionic compound. Atomic element Molecular elementMolecular compoundIonic compound
HW 3 Resources Classify cach substance as an atomic element, molecular element, molecular compound, or ionic compound. lonic compound Molecular compound Molecular element Atomic element Answer Bank NO Br Fe Nal ep acy pelicy emf about us cantact us careers e d
Calculate the atomic mass of element "X", if it has 2 naturally occurring isotopes with the following masses and natural abundances. X-45, 44.8776 amu, 32.88% X-47, 46.9443 amu, 67.12%
What is the difference between Mass Number and Atomic Mass? If an element X has a mass number of 92 and 40 protons, please explain how you could obtain the number of neutrons and electrons of this element.
A binary compound of oxygen and an unknown element, X, has the formula XO2 and is 72.71 mass % oxygen. (a) What is the atomic weight of element X? u (b) What is the symbol for the element on the periodic table? X = (c) Is the element X a metal or not? _________? (d) Is the compound XO2 likely to be ionic or covalent?_________ioniccovalent (e) What is the name of the compound?
Question 4 2 pts What is the average atomic mass of the element that has the following isotopes? 0.005% is of mass 234.040947 amu 0.720% is of mass 235.043924 amu 99.275% is of mass 238.050784 amu Once you find the average atomic mass, please find which element on the periodic table has that mass. Type the atomic symbol (one or two letters only, starting with a capital letter) here. Thank you.
Calculate the mass that would be listed for an element which contains 4 atoms of atomic mass 15.0 amu for every 3 atoms of atomic mass 17.0 amu in a natural sample of the element
Question 56 (1 point) Four elements: W, X, Y and Z have successive atomic numbers. Each atomic number increased by one in the order given. Element Y is a noble gas. Element W would most likley form a compound with: O lithium with the formula LiW. O iodine with the formula Wiz. O element Z with the formula WZ. hydrogen with the formula H2W. Question 61 (1 point) An element X combines with element Y to form a compound. If...