The positions of two elements, P and Q, in the Periodic Table are shown. P and Q react together to form a compound. What is the formula of the compound? A QP B Q2P Q7P D QP7 O A В P.

Q: Consider a mixture of 10 billion O2 molecules and 10 billion H2 molecules. In what way is this…

A: The 1st mixture contains 10 billion or 109 O2 molecules and H2 molecules. The 2nd mixture has 109…

Q: Calculate the number of atoms per cubic meter in lead. The density and atomic weight of lead are…

A: Given,  The density and atomic weight of lead are 11.35 g/cm3 and 207.2 g/mol and the Avogadro's…

Q: The element X has three naturally occurring isotopes. The isotopic masses (amu) and % abundances of…

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Q: The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the…

A: To find the average atomic mass, summing the masses of the elements isotopes, each multiplied by…

Q: Determine the number of atoms in 41.0 grams of vanadium, V. (The mass of one mole of vanadium is…

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Q: A 3.23 g sample of calcium sulfide was decomposed into its constituent elements producing 1.80 g of…

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Q: A novel compound with a molar mass of 674.7 g/mol was isolated from bacterial cells. This compound…

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Q: Stony meteorites are made up of minerals that contain silicates, which are materials made of silicon…

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Q: 1. Upon heating, a 2.500 g sample of hydrated magnesium chlorate, Mg(CIO3)2 loses 0.903 g of water.…

A: Water of crystallization It is the fixed number of water molecules attached to each formula unit of…

Q: None

A: To calculate the average atomic mass of titanium on the given planet, you will use the natural…

Q: Unknown element, Element X, exists in nature as two isotopes: ^{351}351 X has a mass of 350.9196 u…

A: Average atomic mass=∑i=1n (mass of ith isotope)(%abundance of ith isotope)100 where 'i'…

Q: Imagine that you have discovered several stable isotopes of a new element, which you call element X.…

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Q: A sample of manganes reacts completely with oxygen in a specialized crucible. The reaction is given…

A: Given reaction: To find: The charge on manganese. Balanced chemical equation.

Q: Classify each chemical compound: compound type of compound CSOH O ionic O molecular MgO O ionic O…

A: The compounds given are CsOH, MgO and XeF6.

Q: A nail is coated with a 5.49E-2 cm thick layer of zinc. The surface area of the nail is 8.27 cm2.…

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Q: 4. An element “X* has five major isotopes, which are listed below along with their abundances. What…

A: We are having an element X having five isotope along with their abundance and mass . We have to…

Q: The average atomic mass of silicon is 28.0855 u. What percentage of silicon atoms are 29Si? Assume…

A: average weight= f1m1+f²m2+f3m3 F= fraction of natural abundance of isotopes by 100 m= mass of…

Q: A 0.652 g sample of a compound is found to contain 0.579 g of Cu and 0.0730 g of O. Which of the…

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Q: A 30.141 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put…

A: To determine the empirical formula , we would determine the moles of Carbon, Hydrogen , sulfur and…

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

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Q: A metal sulfide M2S contains 14.3% of sulfur by mass. What is the identity of the metal in this…

A: mass percentage is one of the unit to express the concentration . mass percentage is calculated y…

Q: Lithium forms compounds which are used in dry cells, storage batteries, and in high-temperature…

A: Given : Atomic mass of Li = 6.9412 amu Isotopic mass of 6Li isotope = 6.015123 amu  And Isotopic…

Q: The figure (Figure 1) shows the reaction of element A (lavender spheres) with element B (tan…

A: The given reaction is represented as follows:

Q: A certain organic compound has the formula C9H11O3. A sample of this compound weighs 3.4 grams.…

A: The formula of the organic compound is C9H11O3. The molecular mass of the organic compound=9 x 12 +…

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A: Given,                              Isotope           Abundance   Mass (u)…

Q: Formula mass of H20 |(2Н atoms) * (1.01 ати)) + (10 atom) * (16.00 ати)] — 18. 02 ати Water (H2O)…

A: Solution :           Formula mass gives us the sum of the atomic weight of atoms in the formula unit…

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore…

A: Given information: The mass percent composition of calcium phosphate is 57.8% The amount of…