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.
A compound of X and Y is ½ X by mass. The atomic mass of element X...
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.
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...
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 compound is composed of element
x and hydrogen its 80% by mass with 3x as many hydrogen atoms as x
atoms per molecule. what is element x.
please break this down into
kindergarden terms. thank you
break this down and explain to the absolute basics.
how would i know what formula to use to figure this out
?
if this was on a test?
Question 10 0/1 pt A compound is composed of element X and hydrogen. Analysis shows...
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?
Explain please
11. What is the empirical formula of a compound that is by mass 50% element A (whose molar mass is 38) and 50% element B (whose molar mass is 19)? A) A,B B) AB, C) AB D) A,B2 12. What would be the volume of 76 g of fluorine gas (molar mass equal to 38 g/mole) at a pressure of 0.821 atm and a temperature of 27°c? R = 0.082 L.atm/molek A) 30 L B) 60 L C)...
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...
Is an element with the largest atomic mass always the element present in the highest percentage by mass in a compound?
Classify each substance as an atomic element, molecular element, molecular compound, or ionic compound. Atomic element Molecular elementMolecular compoundIonic compound
If 1.00 g of element X reacts with 2.00 g of element Y to produce 3.00 g of a compound with the formula X2Y3, and the molar mass of Y is 50.0 g/mol, what must be the molar mass of X? (a) First of all, after reading the question, which element do you know more about, X or Y? (b) How many moles of Y are in 2.00 g of Y, and therefore must be in the X2Y3 ? (c)...