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Chemical Reactions
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Questions (14,524)
The hydroxide of metal y reacts with hydrochloric acid as follow
Y(OH)2+2HCL product YCl2+2H20 It was found that 5.8g of Y(0H)2
6 answers
asked by
Prisca
701 views
supposed that a liter of sample water contains 1.00 mmol of Ca2+ ions and 1.50 mmol HCO3- ions. how many millimoles of CaCO3
4 answers
asked by
Laura
2,834 views
calculate the percent yield of Cl2 in the electrolytic decomposition of hydrogen chloride if 25 g of HCl produces 13.6 of
5 answers
asked by
Anonymous
5,850 views
identify the products when the following substances decompose:
1) binary compoound 2) metallic hydroxide 3) metallic carbonate 4)
5 answers
asked by
Stephanie
2,547 views
calculate the solubility of 10.1g of potassium trioxonitrate v dissolved in 50g of disstilled water at 25 degree celsius
4 answers
asked by
loveth
750 views
1) Which tube will be most 'yellow' at the end of the experiment?
a)Substrate Concentration: 0.006M Inhibitor: absent b)Substrate
1 answer
asked by
Kimberly
405 views
Imagine a graph. The x-axis is labeled "Time" and is measured in seconds, and the y-axis is labeled "Potential Energy" and is
1 answer
asked anonymously
66 views
1.)CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the
73 answers
asked by
Anonymous
30,340 views
Write the expression of for the base dissociation constant for hydrazine, N2H4, a weak base. Hydrazine reacts with water to form
4 answers
asked by
Angie
5,369 views
iron (III) oxide is formed when iron combines with oxygen in the air. how many grams of Fe2O3 are formed when 16.7g of Fe reacts
5 answers
asked by
cambell
7,940 views
Homw many grams of copper sulfate pentahydrate (CuSo4 5H2O) would you heat to produce 29.8 g of water?
4 answers
asked by
Anne
1,695 views
What is the solubility of Ag2CrO4 in 0.100 M AgNO3? Ksp = 1.12 x 10-12
4 answers
asked by
hazel
1,121 views
1- Use the reaction to complete the sentence.
2CO + O2 → 2CO2 Carbon monoxide and oxygen combine to produce carbon dioxide. The
25 answers
asked by
Gaia
8,444 views
Describe how you would obtain pure crystals of Sodium chloride from a muxture of solid sodium chloride and solid zinc carbonate
S
5 answers
asked by
Ali
5,446 views
which of the following could dissolve a precipitate of CaC2O4 in a saturated solution of CaC2O4?
A.NaOH B.CaC2O4 C.H2C2O4
5 answers
asked by
saphire
3,167 views
At 900 K the following reaction has Kp=0.345; 2 SO2(g) + O2 (g) -> 2 SO3 (g)
In an equilibrium mixture the partial pressures of
6 answers
asked by
Anonymous
10,146 views
explain how you would obtain solid lead carbonate from a mixture of lead carbonate and sodium carbonate powder
9 answers
asked by
diane
6,417 views
4. At high temperatures, nitrogen dioxide, NO2, decomposes into NO and O2. If y(t) is the concentration of NO2 (in moles per
4 answers
asked by
Sarah
2,705 views
The equation for burning C2H2 is
2C2H2(g) + 5O2(g) ⎯→ 4CO2(g) + 2H2O(g) a. If 15.9 L C2H2 react at STP, how many moles of CO2
5 answers
asked by
rob
3,623 views
Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.
Is Al2(CO3)3 ==> Al2O3 + CO2 the right
5 answers
asked by
Jack
10,874 views
in an experiment, ammonia gas, NH3(g) was bubbled through distilled water. Some of the dissolved ammonia gas, NH3, reacted with
4 answers
asked by
Joe
4,224 views
Aluminum bromide and sodium hydroxide react to form aluminum hydroxide and sodium bromide.
a.)How many moles of sodium bromide
5 answers
asked by
Kelsi
4,572 views
Consider these changes. (a) Hg(l)->Hg(g) (b) 3O2(g)->2O3(g) (c) CuSo4*5H2O(s)->CuSO4(s)+5H2O(g) (d) H2(g)+F2(g)->2HF(g) At
4 answers
asked by
Anonymous
6,034 views
When potassium permanganate and glycerol react, the potential energy of the products is less than the potential energy of the
5 answers
asked by
Shoosh
810 views
Using an ionic equation, show how an aqueous solution of hydrochloric acid containing hydroxonium ion neutralizes a potassium
7 answers
asked by
Bilkiss
2,099 views
How many grams of NaCl must react to produce 1.00 g Cl2?
6 answers
asked by
brigette
2,365 views
50cm'3 of sulphur (iv) oxide were produced at s.t.p when some quantity of powdered sulphur were burnt in excess oxygen.state the
6 answers
asked by
Anonymous
1,972 views
What is the chemical equations for soot?
5 answers
asked by
....
1,200 views
Br2(aq) + 2 KI(aq) ==> 2 KBr(aq) + I2(s)
What is oxidized and what is reduced in this reaction?
5 answers
asked by
Ben
4,400 views
Sodium propionate, NaC3H7O2, is used as a food preservative. What is the Kb of C3H7O2- given Ka HC3H7O2 = 3.4x10-5.
4 answers
asked by
Leaf02
472 views
What is the Oxidation number of the underlined element in Al2(CO3)3
4 answers
asked by
jeff
1,008 views
HF hydrolyzes according to the following equation: HF(aq)+H2O(l)<-> H3O+(aq)+F-(aq)
When 0.0300 mol of HF dissolves in 1.0 L of
5 answers
asked by
alison
2,418 views
Dinitrogen tetroxide decomposes to nitrogen dioxide:
N2O4(g)→2NO2(g)ΔHorxn=55.3kJ At 298 K, a reaction vessel initially
4 answers
asked by
Justiss
4,649 views
in the reaction:Ni+SN4+-->Ni2+ (+)Sn2+ which species has been reduced?
1.Ni 2.Sn4+ 3.Ni2+ 4.Sn2+ i know its def Sn but im not
3 answers
asked by
Alexis
1,689 views
Silver oxide is used in small batteries called button batteries (Figure below). It decomposes upon heating to form silver metal
3 answers
asked by
Makayla Brad
939 views
h2s + HNO3 -->s+ no+H2O balance by oxidation number change
4 answers
asked by
bb
1,641 views
An oxalic acid solution contains the following species in varying concentrations: H2C2O4, HC2O4-, C2O4^2-, and H+. Which of the
3 answers
asked by
Amber
2,296 views
What will be the effect on the colour of blue litmus paper when dropped in tetraoxosulphate (VI)acid
4 answers
asked by
Philip
154 views
Starting with 50cm³ of 2.8M sodium hydroxide, describe how a sample of pure sodium sulphate crystals can be prepared
4 answers
asked by
Bravo
268 views
What is the mass of NaOH required to prepare 100.0mL of NaOH(aq) that
has a pH = 13.62 ? A. 0.38g B. 0.42g C. 1.67g D.
4 answers
asked by
sh
2,107 views
I, IV and V only
005 10.0 points When a chemical reaction comes to equilibrium, both the forward and the reverse reactions
5 answers
asked by
Bob
512 views
1) Copy and complete:
Two particles can react together only if they …… and the …… has enough …… to be ……. 2) What
5 answers
asked by
fiyin
1,374 views
H3PO4 + 3KOH = K3PO4 + 3 H2O What would be the percent yield if you reacted 49.0g of H3PO4 with 112g of potassium hydroxide, and
1 answer
asked by
andi
895 views
A student is exploring the reaction seen here:
The student states that adding carbon dioxide or another acid to the system will
1 answer
asked anonymously
57 views
MnS(s) + 2 H+ --> Mn2+ + H2S(g)
At 25 C the solubility product constant, Ksp, for MnS is 5 x 10-15 and the acid dissociation
5 answers
asked by
AL
5,185 views
Write the formation reactions.
{You Must include the states of matter for each atom or compound} NaClO4(s)
5 answers
asked by
Ashley
6,598 views
Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high
5 answers
asked by
Skye
5,338 views
Acetic acid (HC2H3O2) is an important component of vinegar. A 10.00mL sample of vinegar is titrated with .5052 M NaOH, and 16.88
10 answers
asked by
natash
4,186 views
Complete and balance the following equations using the method of half-reaction. both reactions happen in acidic solutions:
a.
4 answers
asked by
lucylu
2,086 views
Hydrogen (H2) and oxygen (O2) combine to make water (H2O) in the following equation.
6H2 + 3O2 → ?H2O How many water molecules
6 answers
asked by
Shottaflow3k
1,985 views
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