4. Aqueous solutions of two fictitious ionic compounds, X₂Y and ZW₂, react in a double displacement reaction. What are the products? A) XW and ZY B) X₂W and ZY C) XW and ZY2 D) X₂Z and YW₂ 5. What is the molar mass of Ca3(PO4)2? A) 87.05 g/mol B) 215.20 g/mol C) 309.97 g/mol D) 430.39 g/mol 6. The average of the total mass of all an element's isotopes is called: A) the isotopic abundance B) the weighted average C) the average molar mass D) the average atomic mass 7. What is the percent composition of phosphorus in ammonium phosphate? A) 63.2% B) 36.4% C) 28.2% D) 20.8%
4. Aqueous solutions of two fictitious ionic compounds, X₂Y and ZW₂, react in a double displacement reaction. What are the products? A) XW and ZY B) X₂W and ZY C) XW and ZY2 D) X₂Z and YW₂ 5. What is the molar mass of Ca3(PO4)2? A) 87.05 g/mol B) 215.20 g/mol C) 309.97 g/mol D) 430.39 g/mol 6. The average of the total mass of all an element's isotopes is called: A) the isotopic abundance B) the weighted average C) the average molar mass D) the average atomic mass 7. What is the percent composition of phosphorus in ammonium phosphate? A) 63.2% B) 36.4% C) 28.2% D) 20.8%
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 105GQ: Sodium bicarbonate and acetic acid react according to the equation NaHCO3(aq) + CH3CO2H(aq) ...
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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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Multiple choice questions 4 to 7 answer plz
Transcribed Image Text:4. Aqueous solutions of two fictitious ionic compounds, X₂Y and ZW2, react in a double displacement
reaction. What are the products?
A) XW and ZY
B) X₂W and ZY
C) XW and ZY2
D) X₂Z and YW₂2
5. What is the molar mass of Ca3(PO4)2?
A) 87.05 g/mol
B) 215.20 g/mol
C) 309.97 g/mol
D) 430.39 g/mol
6. The average of the total mass of all an element's isotopes is called:
A) the isotopic abundance
B) the weighted average
C) the average molar mass
D) the average atomic mass
7. What is the percent composition of phosphorus in ammonium phosphate?
A) 63.2%
B) 36.4%
C) 28.2%
D) 20.8%
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