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Chemical Reactions
Page 8
Questions (14,658)
would you classify 2C(s) + H2(g) ---> C2H2(g) +227.4 as endothermic or exothermic? Why?
4 answers
asked by
No Name
2,201 views
Consider the reaction of solid aluminum iodide and potassium metal to form solid potassium iodide and aluminum metal.
The
9 answers
asked by
anonymous
4,348 views
When chlorine gas is added to an aqueous solution of sodium fluoride (aq)
a) fluorine gas is produced. b) a synthesis reaction
7 answers
asked by
thisfoolneedshelp
4,204 views
A reaction A(aq)+B(aq)<-->C(aq) has a standard free-energy change of –3.35 kJ/mol at 25 °C. What are the concentrations of A,
5 answers
asked by
ACDub
3,774 views
What is the oxidation state of Cr in K2Cr2O4?
6 answers
asked by
anon
5,607 views
What is the balanced ionic equation between bromine and sodium bisulfite??? thanks
5 answers
asked by
niki
6,329 views
When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the
6 answers
asked by
Z
15,677 views
Calculate the mass of each product formed when 43.82g of diborane (B2H6) reacts with excess water:
B2H6(g) + H2O(l)--> H3BO3(s) +
6 answers
asked by
TeeJay
4,329 views
Ammonia (NH3) is formed industrially by reacting nitrogen and hydrogen gases. How many liters of ammonia gas can be formed from
7 answers
asked by
Chris
4,642 views
Use the reaction, which produces ammonia, to answer the question.
N2(g) + 3H2(g) ⇄ 2NH3(g) Which change would happen in the
16 answers
asked by
bill nye the science guy
5,465 views
Reaction 6
1. Place a piece of mossy zinc in a test tube 2 add hydrochloric acid solution to the test tube until the mossy zinc
5 answers
asked by
Rain
4,214 views
A beaker of nitric acid is neutralized with calcium hydroxide. Write a balanced molecular equation and a net ionic equation for
5 answers
asked by
Amee
8,233 views
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal.
M(OH)2 (s) <--> M^2+ (aq) + 2OH- (aq) Ksp=4e-16 M(OH)2
12 answers
asked by
anon
5,535 views
CaCO3(s) + 2HCl(aq) CaCl2(aq) + H2O (l) +CO2(g) What’s the spectator ion in this ?
4 answers
asked by
Nabiha
3,280 views
Cl2 reacts with the element Sr to form an ionic compound. Based on periodic properties, identify a molecule, X2, that is likely
4 answers
asked by
Elizabeth
5,544 views
For the oxidation-reduction reaction equation given here,
2Rb+Br2 --> 2RbBr Indicate how many electrons are transferred in the
4 answers
asked by
Jematormal91
3,741 views
Question 1.
A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2
5 answers
asked by
Jen
4,693 views
In the formation of smog, nitrogen and oxygen gas react to form nitrogen dioxide:
N2(g)+2O2(g)→2NO2(g)How many grams of NO2
6 answers
asked by
ellie
2,583 views
What mass in grams of potassium hydroxide is contained in 500 mL of solution that has a pH of 11.5?
I have a pOH of 2.5 to get
5 answers
asked by
Dustin
1,567 views
How does adding NH3 to the reaction below affect the equilibrium of the reaction?
N2 (g) +3H2 (g) <->2NH3 (g) A. Increasing the
5 answers
asked by
Anonymous
2,531 views
For the equation N2(g) + 3H2(g) → 2NH3(g), what are the mole ratios (in order) of the reactants to each other and to the
5 answers
asked by
Veronica
2,067 views
A student performed two side-by-side reactions to test the decomposition of N2O5. The only difference between the two reactions
4 answers
asked by
stop-cheating-on-apex
2,476 views
Write an equation for the half-reaction in which a potassium atom, K, is oxidized.
A) K + e- ----> K+ B) K ----> K+ + e- C) K-
6 answers
asked by
M, S, E
2,779 views
Ammonium nitrate will decompose explosively at high temperatures to form nitrogen, oxygen, and water vapor.
2NH4NO3(s) → 2N2(g)
6 answers
asked by
Anonymous
4,431 views
Write the cell notation for the reaction below. Show your work.
Cu+2(aq) + 2Ag(s) + 2Cl-(aq) --> Cu(s) + 2AgCl(s)
4 answers
asked by
Tomas
1,388 views
What is the ionic and net ionic equation for Na2CO3 + 2 HNO3 -> 2 NaNO3 + H2O + CO2 (g)
This is what i have so far...
5 answers
asked by
Christina
10,645 views
1.2048g sample of impure Na2CO3 is dissolved and allowed to react with a solution of CaCl2 resulting CaCO3 after precipitation,
4 answers
asked by
Ana
3,613 views
Consider the following reaction:
I2(g) + Cl2(g) 2ICl(g) o Kp = 81.9 at 25 C. Calculate ∆Grxn for the reaction at 25 C under
4 answers
asked by
Melanie
6,820 views
Mg(s) + FeCl2(aq) → MgCl2(aq) + Fe(s). IS THE IRON(II) ION OXIDIZED?
4 answers
asked by
JENNIFER
4,517 views
I need help on these three questions. For all three of them you're supposed to write a balanced equation for each
4 answers
asked by
Molly
1,462 views
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ
4 answers
asked by
Mohamed
1,961 views
The Ksp for silver chromate (Ag2CrO4) is 1.1x10-12. Using the same initial set up of 10mL of 1M silver nitrate is combined with
4 answers
asked by
Anonymous
1,361 views
Calcium carbonate of mass 10g was heated until there was no further change
A. Write an equation for the reaction B. Calculate the
4 answers
asked by
Stephen
1,296 views
give the name of the process when anhydrous copper sulphate becomes wet
10 answers
asked by
augustine
1,593 views
N2 + O2 -> 2NO enthalpy change = +180.6kJ
c) what is the enthalpy change for the formation of one mole of nitrogen monoxide?
4 answers
asked by
A Canadian
1,696 views
Write the net ionic equation for aqueous potassium phosphate and aqueous calcium nitrate.
4 answers
asked by
Braidy
4,418 views
41. Ethyne, C2H2, used in welding react with oxygen as shown below.
4 answers
asked by
mark
2,524 views
Calculate the expansion work done when 50 g of water is electrolysed under constant pressure at 25C
10 answers
asked by
Dana
7,920 views
When lead (IV) oxide is heated with hydrogen, the following reaction occurs:
PbO2(s) + 2H2(g) → Pb(s) 2H2O(g) This reaction
4 answers
asked by
Ibraheem
1,299 views
An impure sample of barium hydroxide of mass 1.6524 g was allowed to react with 100 cm3 of 0.200 mol dm-3hydrochloric acid. When
4 answers
asked by
Anonymous
4,011 views
A 2.559 9 pellet containing NaCl and KCl is dissolved in water. A silver nitrate solution is mixed with water containing the
pell
4 answers
asked by
Akash
3,334 views
When an electric discharge is passed through boron trichloride a new compound is formed. what is its simplest formula if on
4 answers
asked by
christine
1,056 views
Write formula equations and net ionic equations for the hydrolysis of the following salts in water.
a. sodium carbonate b.
10 answers
asked by
anonymous
5,448 views
Calculate the concentration of [H+] and [OH-] in 0.002 mol/L of HNO3 solution.
4 answers
asked by
Jealson
909 views
What is the ionization constant for a weak acid HA that is 1.60% ionized in 0.095M solution?
4 answers
asked by
Zekariyas
1,072 views
Burning 32 g of CH4 in excess oxygen will produce how much CO2 according to the equation
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)
20 answers
asked by
heens
6,239 views
Write balanced complete ionic equation for HC2H3O2(aq) + K2CO3(aq)-----> H2O(l)+CO2(g)+KC2H3O2(aq)
I put
4 answers
asked by
Lisa
5,588 views
A decomposition reaction is found to be first order with respect to the reactant. What is the relationship between the rate and
4 answers
asked by
Ben
1,769 views
Carbon dioxide (CO2) reacts with water (H2O) to form carbonic acid (H2CO3).
Which equation demonstrates the law of conservation
4 answers
asked by
bella
3,102 views
Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the
4 answers
asked by
Chloe
1,291 views
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