Calcium reacts with a certain nonmetallic element to form a compound with the general formula Cax. Element X is a diatomic gas at room temperature. Element X must be

Q: When can the empirical formula be the same as themolecular formula?

A: Molecular formula represents the correct number of atoms present in a compound. Empirical formula…

Q: Gadolinium oxide, a colorless powder which absorbs carbon dioxide from the air, contains 86.76 mass…

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Q: An automobile gasoline tank holds 42 kg of gasoline. Whenthe gasoline burns, 168 kg of oxygen are…

A: Given information: Mass of gasoline = 42 kg Mass of oxygen = 168 kg

Q: . The amount of oxygen

A: The question is based on the concept of environmental Chemistry. we need to identify the term…

Q: Refer to the periodic table inside the front cover of this textbook. State the mass of Avogadro’s…

A: The mass of Avogadro’s number of atoms is the atomic mass expressed in grams. Therefore, 6.02 × 1023…

Q: A salt of copper and oxygen is 88.81% ( by mass) copper. Determine the empirical formula of the…

A: A salt of copper and oxygen is 88.81% (by mass) copper. The empirical formula of the copper oxide…

Q: Complete the stiochiometry table using the starting values provided. Moloouulor Doneit,

A: 1. Vanillin Moles = Mass / Molar mass = 4.383 g / 152.15 g/mol = 0.0288 mol = 28.8 mmol 2. Sodium…

Q: energetic amount that represent.

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Q: Someone hands you a bottle of aluminum sulfate and asks you the following questions. a) What is the…

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Q: empirical formula of the compound? List the elements in standard order for carbon compounds:

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Q: Eighteen carat gold typically contains 75% gold, 16% silver, and 9% copper by weight. Express this…

A: The percentage by weight of the different metal in eighteen-carat gold is: percentage of gold is =…

Q: Refer to the periodic table and state the molar mass for each of the following. (a) gallium, Ga (b)…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: V of electrons loss gain of hydrogen gain of electrons vgain of oxygen loss of hydrogen oss of…

A: Oxidation: In terms of electrons: Losing of electrons by an atom is oxidation. In terms of oxygen:…

Q: How many chlorine atoms are in 27 molecules of chloroform, CHCI,?

A: CHCl3 is a polar organic compound and is used as solvent in various organic reactions. It is made up…

Q: Write a balanced equation for the decomposition of ammonium nitrate to form molecular nitrogen,…

A: A chemical equation represents all the reacting species and the products formed during the chemical…

Q: Refer to the periodic table and state the mass of Avogadro’s number of atoms for each of the…

A: The mass of Avogadro’s number of atoms of sulfur and helium has to be given.

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A: Lithium hydroxide reacts with carbon dioxide to form lithium carbonate and water. The equation for…

Q: 4NH3(g) + 502(g) 4NO(g) + 6H2O(g) When 8.7 moles of ammonia reacts, determine the mass of water…

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Q: how many carbon atoms are, hyrdrogen atoms, oxygen atoms, and nitrogen atoms are in this molecule?

A: The molecule given in the question is a hydrocarbon compound which has heteroatoms (O and N).…

Q: Selective serotonin reuptake inhibitors (SSRIs) are commonly prescribed antidepressants. SSRIs block…

A: We know that, Molar mass of H = 1.00784 g/mol. Molar mass of C = 12.0107g/mol Molar mass of N =…

Q: Assume that all of the solid sulfur was converted to the gaseous form, and all of the gaseous sulfur…

A: A question based on mole concept that is to be accomplished.

Q: Determine the formula weight of a neutrally charged ionic compound that contains the lithium ion and…

A: Formula weight =mass of element×100÷mass of compound Li2SO4 formual weight of Li=12.72% Formula…

Q: examples of chemical compound and how cn we use it in our daily life

A: Chemical compounds: If a particular substance is made up of more than one different element, then…

Q: The number of moles of caffeine in 50.0 g of caffeine is?

A: The given Mass of caffeine = 50.0 g  Molecular formula of Caffeine is C8H10N4O2

Q: Nitric acid is a component of acid rain that forms when gaseous nitrogen dioxide pollutant reacts…

A: when aqueous nitric acid is fall with rain known as acid rain which is harmful to the environment.

Q: In a hydrate, the ratio of salt molecules to water molecules is a _____number.

A: A hydrate is an ionic compound that has a definite amount of water molecules attached to its…

Q: Write a balanced equation for the combination reaction described, using the smallest possible…

A: Combination reactions are those reactions in which two reactants react together to combine and form…

Q: the limiting reagent is the number of IF, molecules formed is and the number of atoms/molecules in…

A: Before doing this problem we must know the concept of limiting reagent  In a chemical reaction one…

Q: The number of moles of an element in a compound can be calculated from?

A: The molecular formula of a compound gives the total number of atoms of each element present in each…

Q: What are the substances leftnf the arrow ina chemical reaction called? 2. What are the substances…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: Mass of empty Calorimeter  is 7.73g, mass of calorimeter + water is 52.0753g, Calculate mass of…

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Q: Half of Avogadro's number is ? Write in scientific notation

A: We have to write half of Avogadro number in scientific notation.

Q: If there are three oxygen atoms in the potassium chlorate chemical formula , what should be mass…

A: Chemical formula of potassium chlorate is given below,

Q: One mole of phosphorous pentachloride contains how many of each of the following: phosphorous…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 1.) The chemical formula for the ionic compound formed when elements of Ca and N react is , when…

A: Chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: Complete the table below for calculating the formula weight of the ionic compound aluminum oxide,…

A: To solve this we use the atomic weights of ions . As we know that the formula weight is the sum of…

Q: ular compound (water, molecular co powerful that individual atoms the following information:

A: It is explained as,

Q: Correctly balance given these two chemical names; choose the correct choice w the correct…

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Q: Calculate the number of moles of Acetic Acid in the following reaction. Remember significant…

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Q: Three moles of sulfur dioxide, SO,, would consist of how many molecules? molecules

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Q: The ______ is a mixture of gases: mostly nitrogen and oxygen, with smaller amounts of argon, carbon…

A: Air is a mixture of gases.

Q: What are the two Common Reactions of Radicals ?

A: Radicals are the atoms or molecules that contain single electron which is unpaired. Radicals are…

Q: If in a reaction, copper is produced:its number of electrons has

A: Copper is produced by reduction of cu2+ ion. SO, reaction is Cu2+ + 2e ---> Cu

Q: Question attached

A: Molecular formula fluorine gas is F2 .  Average molar mass of Air = 28 g/mol Molar mass of F2 = 38…

Q: are the tells the story of a chemical reaction. are the new substances that are formed. The large…

A: Chemical reaction, the conversion of one or more chemicals (the reactants) into one or more distinct…

Q: must include the correct units.  The mass of a mole of iron is

A: The symbol of iron is Fe The atomic number of iron is 26