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Questions (1,486)
an auto mechanic spills 85 mL of 2.4 M H2SO4 solution from a rebuilt auto battery. how many mL of 1.2 M NaHCO3 must be poured on
4 answers
asked by
james
1,140 views
Magnesium can be used as a “getter” in evacuated enclosures to react with the last traces of oxygen. (the magnesium is
4 answers
asked by
Ricky
2,699 views
Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and in the production of
4 answers
asked by
Shawn
1,864 views
A 0.2mol/L solution of KMnO4 has been added to 10 ml of 0.5mol/L acidified FeSO4.
write the balance equation of the reacttion
4 answers
asked by
fadi
1,296 views
20 5.5 g of bronze (an alloy of copper and tin, Cu-Sn) containing 23 % of Sn are dipped in an excess of HCI. a) Write the
4 answers
asked by
Habibi
398 views
Iron forms a series of compounds of the type Fex(CO)y. If you heat any of these compounds in air , they decompose to Fe2O3 and
4 answers
asked by
Anonymous
1,222 views
The reaction described by this equation
O3(g) + NO(g) -- O2(g) + NO2(g) has the following rate law at 310 K. rate of reaction =
5 answers
asked by
Katie
5,226 views
A commercial for a well known cleaning powder says that it "shakes out white, then turns blue" what type of reaction os
4 answers
asked by
Ash
2,042 views
The hydroxyl radical (OH) is an important oxidizing agent in the atmosphere. At 298 K the rate constant for the reaction of OH
5 answers
asked by
Anonymous
2,839 views
Zn is less active than Mg. Write the equations describing what occurs when ou mix: a)Zn with 0.5M magnesium chloride, MgCl2 b)Mg
4 answers
asked by
shannon
2,376 views
AlPO4(s)<=>Al^3+(aq)+PO4^3-(aq)
PO4^3-(aq)+H3O^+(aq)<=>HPO4^2-(aq)+H2O(l) What is the net ionic equation for AlPO4(s) dissolving
5 answers
asked by
CHEMistry
4,750 views
In the decomposition of kclo3 how many moles of kcl are formed in the reaction that produces 0.05 moles of o2
5 answers
asked by
Gabrielua
1,883 views
What is reaction equation of sodium thiosulphate and potassium iodate when standardized? I have seen many different equations
5 answers
asked by
Anonymous
3,945 views
A is a solution of dibasic H2X. B is a solution of 1•00g sodium hydroxide in 250cm^3.the volume of the pipette used is
4 answers
asked by
Dolapo
705 views
74. Sodium hydrogen carbonate is also known as baking soda. When this compound is heated, it decomposes to sodium carbonate,
4 answers
asked by
Martha
2,478 views
Which of the following is a precipitation reaction?
I. 2 Mg (s) + O2 (g) → 2 MgO (s) II. SO3 (g) + 2 H2O (l) → H3O+ (aq) +
4 answers
asked by
sos
2,520 views
Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains
4 answers
asked by
Denisha
3,235 views
What happens to the sample's reported water content if the salt decomposes yielding a volatile product?
If the water is not
4 answers
asked by
Allison
2,254 views
What happens when magnesium is added to Maleic and Fumaric acid? What gas is released from this reaction? I was also wondering
4 answers
asked by
Sean
2,086 views
the reaction of aluminum metal (Al) with oxygen (O2) forms Al2O3. What is a balanced equation for this redox reaction. What are
4 answers
asked by
cathy
3,278 views
1. The effervescent tablet contains sodium bicarbonate (baking soda), which reacts with water in the following reaction:
H2O +
4 answers
asked by
Lily
727 views
given lead(ii)oxide,nitric acid,sodium carbonate and water,explain how you can prepare lead carbonate
7 answers
asked by
jasper paul
2,548 views
Identify the precipitate in this reaction: calcium nitrate reacts with sodium phosphate.
2Na3PO4 + 3Ca(NO3)2--->6NaNO3 +
4 answers
asked by
Ciaria
7,265 views
Consider the following reaction
4Al + 3O2 = 2Al2O3 It takes 2.00 L pure oxygen gas at STP (0C ,1atm ) to react completely with a
4 answers
asked by
NONO
1,929 views
write a balanced equation for the reaction that occurs when an aquesous solution of iron(II) chloride is mixed with an aqueous
4 answers
asked by
natash
1,536 views
What happens when magnesium is burnt in a jar if nitrogen and the product is warmed after moistened with water (give the
4 answers
asked by
Dam william
780 views
analyze the following equation for a double displacement reaction. using this reaction. using this reaction as a model, do you
4 answers
asked by
anonymous
682 views
Suppose you wanted to dissolve an aluminum block with a mass of 15.4 g
What mass of H2 gas (in g) would be produced by the
4 answers
asked by
Liz
1,696 views
Chemical equation for the decomposition of magnesium carbonate including state symbols
4 answers
asked by
Anonymous
1,448 views
Aqueous ammonia reacts with aqueous solution of metal ion X to produce a coloured
precipitate. The colour of the precipitate
4 answers
asked by
Cheezel
775 views
CaCO3 ----------> CaO + CO2
When 45 grams of calcium carbonate decomposes, how many grams of calcium oxide are produced?
4 answers
asked by
Andrea
1,308 views
According to the law of conservation of mass, what should the product side of this single replacement reaction look like?
Zn+2HCl
10 answers
asked by
Callie
5,208 views
Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3:
C7H6O3(s) +
4 answers
asked by
Amber
2,755 views
a student paid little attention to the size of his burner flame while heating a 0.979 gram sample of calcium oxalate
4 answers
asked by
maxine
1,232 views
What volume of 16M HNO3 is required to dissolve 0.50g of Cu metal in the following reaction?
Cu(s) + 4HNO3(aq) ---> Cu(NO3)2 +
4 answers
asked by
Alex
1,346 views
Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s)
If 112 g CaO reacts with 224 g
4 answers
asked by
Maria
1,166 views
Determine the minimum volume of 6.40M HNO3 required to dissolve a 2.40g sample of Cu.
2NO3-(aq)+8H+(aq)+3Cu(s)-->2NO(g)+4H2)(l)+3
3 answers
asked by
Catalina
939 views
In which reaction does the smallest percentage change in volume occur?
a) C3H8 (g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) b) 4NH3(g) +
4 answers
asked by
Marrion
1,680 views
A student observed the following reaction:
AlCl3(aq)+3NaOH(aq) -> Al(OH)3(s)+3NaCl(aq) After the products were filtered, which
5 answers
asked by
P
4,175 views
Mno4 + fe2 ----> mn2 + fe3
Balance the redox reaction in acidic medium
4 answers
asked by
Mahmud hahaha shehu
1,392 views
Which reactions have a positive ΔSrxn?
A(g)+2B(g)⟶2C(g) A(s)+2B(g)⟶C(g) 2A(g)+B(g)⟶4C(g) 2A(g)+B(s)⟶3C(g)
4 answers
asked by
SG
4,389 views
What would be made if hydrogen sulphide gas was bubbled through a solution of zinc nitrate
4 answers
asked by
kennedy
2,628 views
What mass of limestone will produce 11.2g of lime
4 answers
asked by
tehillah
832 views
For the oxidation- reduction reaction equation given here,
2Na+S -> Na2S indicate how many electrons are transferred in the
3 answers
asked by
Anonymous
3,466 views
complete each of the following and name the product
a CH3CH2CH=CH2+HCl gives b CH3CH2CH=CH2+Br2 gives c CH3CH2CH=CH2+H2o-H+gives
7 answers
asked by
beku
3,280 views
Sodium peroxide reacts vigorously with water
to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) +
4 answers
asked by
Linda
4,316 views
Does Pb(NO3)2 + Cu has a reaction? if so, what will it be?
3 answers
asked by
LG
1,126 views
One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH.
2LiOH(s)+CO2(g)---->Li2CO3(s)+H2O(l) How
3 answers
asked by
Kaylee
2,077 views
A precipitate will be formed when an aqueous carbonic acid soution is added to what other aqueous solution?
A. ammonium chloride
4 answers
asked by
Ellie
1,931 views
what volume of methane is needed to completely react with 500 liters of oxygen?
4 answers
asked by
(:
1,395 views
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