In compare a balloon include 25 grams that helium to a balloon include 25 grams of neon, which among the following statements is TRUE?

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If 2.01 × 1023 atoms of an facet from group IA of the periodic table has a massive of 7.675 grams, this element is most likely
If a sample of carbon dioxide has 3.8 moles of oxygen atoms, how numerous moles that carbon dioxide space in the sample?
An iron ore sample is found to it is in 35.00% Fe by mass. How numerous grams that ore are necessary to attain of Fe?
A 500. Gram iron ore sample was established to save on computer 242 grams that iron. What is the mass percent of steel in the ore?
Bauxite is one ore that includes the aspect aluminum. If you acquired 108 grams the aluminum indigenous an ore sample that originally weighed 204 grams, what is the mass percent of aluminum in this bauxite ore?
The most basic formula because that hydrogen peroxide is HO. To recognize its molecular formula, the is essential to know
A chromium oxide compound consists of 104.0 grams the chromium and also 48.0 grams the oxygen. What is the most most likely empirical formula of this compound?
An iron chloride compound consists of 55.85 grams that iron and 106.5 grams the chlorine. What is the most most likely empirical formula for this compound?
A 7.96 gram sample of silver- reacts with oxygen to kind 8.55 gram of the steel oxide. What is the formula the the oxide?
Vitamin C is well-known chemically by the name ascorbic acid. Identify the empirical formula of ascorbic acid if the is composed of 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen.
Determine the correct empirical formula of a link containing 26.68% carbon, 2.24% hydrogen, and also 71.08% oxygen.
What is the molecule formula the a compound provided the molar massive of the compound is 186.5 grams and the empirical formula is C2H7?
An estrogen compound v the empirical formula C12H17O2 has actually a molecular mass of 386.6 g/mol. What is the value of n essential to discover the molecule formula?
What is the molecular formula that a compound offered the molar mass of the compound is 30.04 gram and also the empirical formula is NH?
A compound has actually a molar fixed of 180.15 g/mol. Provided the complying with percent composition, calculate the molecule formula:
An unknown acid has a molar fixed of 60.05 g/mol. Given the complying with percent composition, what is the molecule formula? 40% C, 6.7% H, 53.3% O

Chemistry: The main Science14th EditionBruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore Brown



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