the statement or answersI) What is the coefficient of CO2 gas after balancing the following equation?KHCO3(6)K2CO3(6) + LH20(8) + _CO2(8)A) 1B) 2C) 3D) 4E) none of the above- k-2H- 22 C0-32) How many moles of H2 can be made from complete reaction of 3.0 moles of Al?Given: 2 Al + 6 HCI-2 AIC13 + 3 H2A) 9.0 molesB) 3 molesC) 3.0 molesD) 4.5 molesE) none of the above3) Hydrochloric acid reacts with barium hydroxide according to the equation:2 HCI (aq) + Ba(OH)2 (aq) - BaCl2 (aq) + 2 H20 (1) AH = -118 kJCalculate the heat (in kJ) associated with the complete reaction of 54.7 grams of HCI (aq).AY -236B) F177C) -88.5D) -177E) none of the above4) Which of the following symbolizes a precipitate in a chemical reaction?A) (s)B) ()C) 8)D) (aq)E) none of the above5) Which of the following statements best describes the following reaction?BaCO3(s), BaO(s) + CO2(8)A) Heating barium carbonate produces barium oxide and carbon dioxide gas.B) Heating barium carbonate produces barium oxide and carbon dioxide.C) Heating solid barium carbonate produces solid barium oxide and carbon dioxideD) Heating barium carbonate produces a solid and a gas.E) Heating solid barium carbonate produces barium oxide and carbon dioxide.gas

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the statement or I) What is the coefficient of CO2 gas after balancing the following equation? KHCO3()K2cO3() + LH2O(g) + _CO2(8) A) 1 B) 2 C) 3 D) 4 E) none of the above - {-2 - H - 2 2 CO-3

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter4: Stoichiometry Of Chemical Reactions

Section: Chapter Questions

Problem 65E: Freon-12, CCl2F2, is prepared from CCl4 by reaction with HF. The other product of this reaction is...

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Concept explainers

Actinides

The elements in which the extra electron tends to enter the 5f-orbitals of (n–2)th main shell are considered 5f-block elements. They are also named actinides. Actinides include 15 elements, from atomic number 89 to 103.

Question

the statement or answers
I) What is the coefficient of CO2 gas after balancing the following equation?
KHCO3(6)K2CO3(6) + LH20(8) + _CO2(8)
A) 1
B) 2
C) 3
D) 4
E) none of the above
- k-2
H- 2
2 C0-3
2) How many moles of H2 can be made from complete reaction of 3.0 moles of Al?
Given: 2 Al + 6 HCI-2 AIC13 + 3 H2
A) 9.0 moles
B) 3 moles
C) 3.0 moles
D) 4.5 moles
E) none of the above
3) Hydrochloric acid reacts with barium hydroxide according to the equation:
2 HCI (aq) + Ba(OH)2 (aq) - BaCl2 (aq) + 2 H20 (1) AH = -118 kJ
Calculate the heat (in kJ) associated with the complete reaction of 54.7 grams of HCI (aq).
AY -236
B) F177
C) -88.5
D) -177
E) none of the above
4) Which of the following symbolizes a precipitate in a chemical reaction?
A) (s)
B) ()
C) 8)
D) (aq)
E) none of the above
5) Which of the following statements best describes the following reaction?
BaCO3(s), BaO(s) + CO2(8)
A) Heating barium carbonate produces barium oxide and carbon dioxide gas.
B) Heating barium carbonate produces barium oxide and carbon dioxide.
C) Heating solid barium carbonate produces solid barium oxide and carbon dioxide
D) Heating barium carbonate produces a solid and a gas.
E) Heating solid barium carbonate produces barium oxide and carbon dioxide.
gas

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