(a)
Interpretation:
The balanced chemical equation when potassium reacts with water hasto bewritten.
Concept Introduction:
Balanced Chemical equation:
A balanced chemical equation is an equation which contains same elements in same number on both the sides (reactant and product side) of the chemical equation thereby obeying the law of conservation of mass.
(b)
Interpretation:
The balanced chemical equation when potassium reacts with ammonia has to be written.
Concept Introduction:
Balanced Chemical equation:
A balanced chemical equation is an equation which contains same elements in same number on both the sides (reactant and product side) of the chemical equation thereby obeying the law of conservation of mass.
(c)
Interpretation:
The balanced chemical equation when potassium reacts with bromine has to be written.
Concept Introduction:
Balanced Chemical equation:
A balanced chemical equation is an equation which contains same elements in same number on both the sides (reactant and product side) of the chemical equation thereby obeying the law of conservation of mass.
(d)
Interpretation:
The balanced chemical equation when potassium reacts with oxygen has to be written.
Concept Introduction:
Balanced Chemical equation:
A balanced chemical equation is an equation which contains same elements in same number on both the sides (reactant and product side) of the chemical equation thereby obeying the law of conservation of mass.
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General Chemistry: Atoms First
- The oxygen and nitrogen families have some obvious similarities and differences.(a) State two general physical similarities between Group 5A(15) and 6A(16) elements.(b) State two general chemical similarities between Group 5A(15) and 6A(16) elements.(c) State two chemical similarities between P and S.(d) State two physical similarities between N and O.(e) State two chemical differences between N and O.arrow_forwardPotassium superoxide, KO2, is often used in oxygen masks(such as those used by firefighters) because KO2 reacts withCO2 to release molecular oxygen. Experiments indicate that 2mol of KO2(s) react with each mole of CO2(g). (a) The productsof the reaction are K2CO3(s) and O2(g). Write a balanced equationfor the reaction between KO2(s) and CO2(g). (b) Indicatethe oxidation number for each atom involved in the reactionin part (a). What elements are being oxidized and reduced?(c) What mass of KO2(s2) is needed to consume 18.0 g CO2(g)?What mass of O2(g) is produced during this reaction?arrow_forward#46arrow_forward
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- Arrange in order of increasing ionization energy (a) the Group 1A elements Na, Cs, and K(b) the Period 4 elements As, Ca, and Brarrow_forwardA biochemist who is studying the properties of certain sulfur(S)–containing compounds in the body wonders whethertrace amounts of another nonmetallic element might havesimilar behavior. To which element should she turn herattention? (a) F (b) As (c) Se (d) Cr (e) Parrow_forwardEnergy is required to remove two electrons from Ca to formCa2+, and energy is required to add two electrons to O toform O2 - . Yet CaO is stable relative to the free elements.Which statement is the best explanation? (a) The latticeenergy of CaO is large enough to overcome these processes.(b) CaO is a covalent compound, and these processes areirrelevant. (c) CaO has a higher molar mass than either Ca orO. (d) The enthalpy of formation of CaO is small. (e) CaO isstable to atmospheric conditions.arrow_forward
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