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February 11, 2016

Search: "balanced equation for the reaction of the oxygen and the magnesium" including their physical states

Number of results: 51,587

Chemistry
Calculate G373 in kJ for the following reaction at 100 C, using data from your text. 5SO3(g) + 2NH3(g) --> 2NO(g) + 5SO2(g) + 3H2O(g) Enter answer in decimal form, including the sign.
June 3, 2010 by Darali

Chemistry
Calculate G373 in kJ for the following reaction at 100 C, using data from your text. 5SO3(g) + 2NH3(g) --> 2NO(g) + 5SO2(g) + 3H2O(g) Enter your answer in decimal form, including the sign.
May 26, 2011 by Roxanne

chemistry
2) Suppose you have 5.00g of powdered magnesium metal, 1.00L of 2.00M potassium nitrate solution, and 1.00L of a 2.00M silver nitrate solution. a. Which one of the solutions will react with the magnesium powder?
March 17, 2013 by Anonymous

CHEMISTRY
In some solid calcium carbonate samples, calcium bicarbonate, Ca(HCO3)2, is also present. Write a balanced euation for its reaction with hydrochloric acid.
March 8, 2010 by jEFFREY

physics
the melting temperature of magnesium is 650c what is the melting temperature of magnesium in fahrenheit
March 11, 2010 by Anonymous

chemistry
A sample of magnesium weighs 10 grams. How many moles of magnesium are there in the sample? 0.4 moles?
February 5, 2012 by kr

Science
1.Why do you think an FRH doesnt come with water already in it? 2.Do you think there are small pieces or large pieces of magnesium metal in an FRH? Explain. 3. Why is it important that the reaction in an FRH be fast?
May 1, 2013 by James

ap chemistry
Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO2 + O2 yields 2CO2 Delta H for this reaction is -566 kJ/mol run. What is the delta H for CO? 1). +270 kJ/mol 2). -110 kJ/mol 3). +65 kJ/mol 4). -405 kJ/mol 5). -65 kJ/mol 6). -182 kJ/mol 7...
October 18, 2012 by bridget

chemistry
What is the complete ionic equation for the double displacement reaction: CuNO3(aq) + K2S(aq)= what is the chemical name and formula of this chemical reaction? plsss. need help
October 3, 2012 by shay

Organic Chemistry
During the synthesis of a Grignard reagent in diethyl ether solvent, what is the identity of the bubbles that show up on the surface of the magnesium? -Gaseous magnesium byproducts -Gaseous O2 -Gaseous H2 -Gaseous diethyl ether
September 26, 2015 by Ash

Chemistry
Could some please tell me if I did this problem correctly? Assume that at a given temperature, there is 1 g of CO2 gas in a one liter volume. How much mass of O2 would there be at the same temperature, in the same volume? My answer: Step 1) Find the number of moles of carbon ...
October 22, 2009 by Ed

chemistry HELP
Use the following information to identify element A and compound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a temperature of 15C. When...
October 29, 2006 by sonya

Chemistry
Consider the decomposition reaction of the following represented hydrogen peroxide: 2 H2O2 (aq) = 2 H2O + O2 In the experiment, the average speed of this reaction given time interval was 16 mol s- in relation to hydrogen peroxide. What is the average speed production of ...
January 21, 2016 by Victoria

physics
A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 45.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 3.00 m/s^2. Including the reaction time, how long ...
September 6, 2012 by colby

physics
A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 5.00 m/s^2. Including the reaction time, how long ...
June 18, 2013 by louis aaaa

Physics
A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 40.0 m/s due north. After a reaction time 0.500 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the reaction time, how long ...
September 10, 2013 by Kaitlyne

physics
A police car is traveling at a velocity of 19.0 m/s due north, when a car zooms by at a constant velocity of 49.0 m/s due north. After a reaction time 0.600 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the reaction time, how long ...
September 15, 2013 by Katy

Physics
A police car is traveling at a velocity of 19.0 m/s due north, when a car zooms by at a constant velocity of 49.0 m/s due north. After a reaction time 0.600 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the reaction time, how long ...
September 16, 2013 by Tonya

Physics
A police car is traveling at a velocity of 20.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the reaction time, how long ...
September 27, 2014 by Peanutbutter7

Chemistry
with a platinum catalyst, ammonia will burn in oxygen to gove nitric oxide NO. What is the enthalpy change for the following reaction? NO + 3/2 H2O -----> NH3 + 5/4 O2
October 29, 2007 by Lauren

Chemistry
Give the following reaction,find the mass of oxygen required to produce 13grams of CO2; C3H8+5O2--->3CO2 + 4H2O
June 15, 2011 by Charlie

Chemistry
Consider the reaction below : P4(s) + 5O2(g) ---> P4O10(s) How many grams of phosphorus react with 4.745 x 10^1 L of oxygen at STP to form tetraphosphorus decaoxide?
July 29, 2011 by Brooke

chemistry
what mass of oxygen would be required to completely burn 6.75 g of propane in the following reaction? C3H8+5O2 => 3CO2+4H2O * please help
February 14, 2012 by romy

chemistry
When HgO is heated, it decomposes into elemental mercury and molecular oxygen gas. If 66.0 g of Hg is obtained from 82.0 g of the oxide, what is the percent yield of the reaction?
December 8, 2014 by MINITRON

Chemistry
If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s) + 3 H2O(l) => 3 MgO(s) + 2 NH3(g) If 11.1 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 23°C and 739 mm
November 18, 2012 by sam

Chemistry: Equilibrium
So, I think I'm doing everything right and even checking my math, but it keeps showing up as wrong. If someone can help me and go into detail,including the quadratic formula, I would appreciate it: Phosphorus pentachloride decomposes according to the chemical equation Pcl5(g)=...
October 14, 2015 by Jessica

Chemistry
During the synthesis of a Grignard reagent in diethyl ether solvent, what is the identity of the bubbles that show up on the surface of the magnesium? -Gaseous magnesium byproducts -Gaseous O2 -Gaseous H2 -Gaseous diethyl ether
September 26, 2015 by Ash

Chemistry
energy required for ionisation of 0.02 gram atom of magnesium is x Kj .the amount of energy required to ionise 1 atom of magnesium is
June 5, 2015 by sam

Chem 100
An electrochemical cell is made from two half cells. The first contains 1M hydrochloric acid above 1 atm Cl2gas (w/ a platinum electrode). The other half cell contains a solution of H2O2 above 1 atm of O2 (also with a platinum electrode). A spontaneous reaction occurs. a. ...
May 9, 2015 by Mall

chemistry
balance the following equation, and identify the type of reaction. ZnSO4+SrCl2-> i think it's a double replacement reaction. But could someone please help me balance it. I'm not sure how.
July 18, 2010 by v.c

Chemitry
Nitrogen dioxide, NO2, decomposes upon heating to form nitric oxide and oxygen according to the following equation: 2NO2(g)---->2NO(g) + O2(g) At the beginning of an experiment, the concentration of nitrogen dioxide in a reaction vessel was 0.1103 mol/L. After 60.0 sec, teh...
December 2, 2010 by Irina

Chem
Suppose that a stable element with atomic number 119, symbol Wr, has been discovered. (d) What would be the most likely charge of the Wr ion in stable ionic compounds? (e) Write a balanced equation that would represent the reaction of Wr with water. (f) Assume that Wr reacts ...
October 21, 2012 by Dave

Chemistry Redox Reaction
Balance the equation as a redox reaction in acidic solution. Cu(s)+NO3^-1(aq)-->Cu^2+(aq)+NO(g)
June 4, 2009 by Juggernaut

chem
Write a total ionic equation for the reaction (if any) of FeCl2 with Cu, and for the reaction (if any) of FeCl2 solution with Al
October 16, 2011 by Stef

Chemistry
A chemist does a reaction rate analysis on the following reaction: 2CO (g) + O2 (g) → 2CO2 (g) She collects the following data: Trial Initial Concentration of CO (M) Initial Concentration of O2 (M) Instantaneous Reaction Rate (M/s) 1 0.150 0.150 0.113 2 0.300 0.150 0.226...
June 30, 2011 by Violet

chemistry
The following redox reaction occurs in basic aqueous solution. When balanced with the smallest whole number coefficients, what is the coefficient for OH-(aq)? Mn(OH)2(s) + MnO4-(aq) = MnO42-(aq). - after doing the question i got 1..but i dont know if im right :S 1. 3 2. 5 3. 1...
November 7, 2009 by John

chemestry
Based upon the previous two questions, consider the magnesium nitride addition reaction again. This time, suppose you start with 10.0 g of each reactant. What is the maximum number of MOLES of Mg3N2 that could be produced in this case? Remember that the reactant that runs out ...
November 17, 2010 by cristy

college
Do some research into why the United States has been so slow to adopt metric measurements. What problems does this cause for the United States? What benefits might it bring the United States? How might you resolve the gap between the United States' measurement system and that ...
October 23, 2010 by ca

math
The area of each of the four states shown of the united states is given as fractions, decimals or percents of the total area of the united states. Arrange the states in order from the largest area to the smallest area. California-4.25% Montana-1/30 New Mexico-0.072 Texas-9/125
August 29, 2011 by HELP!!!

United states history
What similarities do you see between the United States today and the United States of the past? What issues and problems do we continue to grapple with? What successes do we share with Americans in the past? I want to find something now in united states that was similar to the...
December 8, 2014 by Selena

Chemistry
Help-I'm really confused- If you have an equation where H is positive + OH negative and reaction arrows go both ways-with H2O as product, what type of reaction is this and why- either neutralization,hydrolysis,decomposition or esterification Thank you very much
April 20, 2010 by Celia

chemistry
Consider the following reaction: 2H2S (g) + 3O2 (g) --> 2SO2 (g) + 2H2O (g) If O2 was the excess reagent, 1.3 moles of H2S were consumed, and 18.7 g of wat were collected after the reaction has gone to completion, what is the percent yield of the equation?
December 11, 2011 by :(

chemistry
what is the chemical balance equation for the following: Magnesium metal and hydrochloric acid copper matal and hydroshloric acid potassium hydroxide and acetic acid
January 18, 2012 by Chemistry

Physical Education
1. Aerobic activities can be done for an extended period of time and supply oxygen to your muscles. Such activities help develop _______________________. 2. You can change your _______________________ by exercising regularly and eating healthfully. 3. The ...
February 23, 2012 by Maddie

Chemistry
I don't know exactly how to start this question: A sample gas contains 2.95 x 10e24 molecules. The sample is 21.0% oxygen. Calculate volume of oxygen in liters assuming oxygen has a density of 1.308 g/L. Please help me how to do this. I have been stuck and still trying to ...
October 26, 2012 by Elizabeth

Chem
Predict the mass of CuO expected to result from the decomposition of the malachite, based on the balanced equation.
August 10, 2008 by Gabby

chemistry
i need help with a balanced equation for the displacement of aluminum in the soil and H+ ions from acid rain? (for leaching) thanks :)
November 8, 2008 by remi

Ap Chemistry
What exactly is this question telling me to do? Write the balanced chemical equation for the dissociation of Cu(OH)2(s) in aqueous solution.
April 29, 2010 by Shawn

chemistry
Write the balanced equation for the combustion of C2H5(NH2)CO2H . The nitrogen is converted to N2O4
September 21, 2011 by joan

chemistry
Using the balanced equation, Mg + 2HCl= H2 + MgCl2, calculate the amount of MG need to react with 25 mL of 6 M HCl.
October 18, 2011 by Jamey

Chemistry
How many moles of H2 will be produced if 0.500g of Mg is reacted with 10.00mL of 2.0M HCl? Also, provide a balanced equation.
October 24, 2011 by Kay

chemistry
what is the sum coefficient and balanced equation of : Co(OH)3+Na2CO3 my answer is 3Co(OH)3+ 3Na2CO3---> 3CoCO3+ 3Na2OH
October 9, 2012 by lydia

Chemistry
How do I write ZnSo4(aq)+Na3Po4(aq)---> Zn3(Po4)2(s)+Na2S04(aq)as a net ionic equation balanced?
October 9, 2012 by Crystal

CHEMISTRY
Co(s) will oxidize Fe(s) while leaving Cu(s) unreacted, please write a balanced equation for the reagent involved?
November 30, 2012 by help

Biology
Please Help Quick,Write Out The Balanced Chemical Equation For Respiration In An Athlete In A Race.
February 22, 2013 by Chris

Chemistry (Thermodynamics)
Write a balanced equation for the complete combustion of 1 mole of ethyne gas (C2H2) ?
February 27, 2014 by Amanda

Chemistry
Is this equation for acetic acid + sodium chloride balanced? C2H4O2 + NaCl ---> HCl + C2H3NaO2
January 10, 2016 by Anonymous

language arts -
Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. --physics 2. Wilma dazzled the crowds in the track & field competition. --physical 3. Al Oerter, an American discus thrower, ...
March 17, 2014 by cee

chemistry
Sulfur dioxide and oxygen gases react at high temperature (400 o C) in the presence of a catalyst(like Pt) to form sulfur trioxide gas. The reaction is started from a gas mixture at 400oC with the partial pressures PSO2 = 15 atm and PO2= 10. atm. What will be the final partial...
April 17, 2015 by David

Science (Chemistry)
. Complete all the following for the reaction (NH4)2S + Cd(NO3)2 --> CdS(s) + NH4NO3 1. Balance this equation 2. Write the ionic equation 3. Write the net ionic equation
March 14, 2014 by Anonymous

Chem
If 0.333 g Al is reacted with .501 g I2 according to the balanced chemical reaction: 2Al + 3I2 2AlI3 a) what is the limiting reagent b) how much excess reagent left over?
January 10, 2010 by A

science
Would you expect the dissolved oxygen concentration of water samples taken from a lake at 7 am to be higher or lower than samples takn at 5 pm? I feel like there may be more dissolved oxygen in the sample taken at 7 am because photosynthesis probably took place and oxygen was ...
May 7, 2008 by Jin

chemistry
How do I balance this equation. Give the complete or "molecular" equation for the predicted partner exchange reaction. FeCl3 and NH3
September 12, 2011 by Anonymous

chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.335-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
September 1, 2011 by ALEX

Chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
September 13, 2011 by Carolina

Chemistry
Procedure 0) The sodium phosphate, Na3PO4 solution has NPFA ratings of 1 (out of 4) for health, 0 for fire, and 0 for reactivity. Cobalt (II) nitrate has 2 for health, 0 fire, and 0 for reactivity. 1) Carefully label (1-‐6) and weigh 6 small test tubes. 2) You will need...
March 1, 2015 by Chem

Chemistry
A mixture of ammonia and oxygen is prepared by combining 0.250 L of NH3 (measured at 0.700 atm and 20C) with 0.160 L of O2 (measured at 0.720 atm and 49C). How many milliliters of N2 (measured at 0.740 atm and 100. C) could be formed if the following reaction occurs? 4NH3(g...
July 9, 2014 by Luke

Chemistry
In the equation: Fe(NO3)3 (aq) + 3KSCN (aq) forms FeSCN3 (aq) + 3KNO3 (aq) What type of reaction is this? why are there two aqueous solutions as products? Is there a secondary reaction? Finally is there a name for these products?
January 4, 2011 by ashley

Chemistry
A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (2 marks) b) ...
September 20, 2014 by Sarah

Physical Education
I just want to know what different branched there are in taking a major in physical education. I know you can go into teaching, athletic training, but I want to know if there are any other areas. Physical tharapy, Sports Medicine, Phisiology of astronauts
December 2, 2006 by Frank

density of Magnesium!
Magnesium crstallizes in the hcp arrangment. The dimensions of the unit cell are height 520om, length on an edge, 320. Calculate the density of Mg (s) and compare it with the measured value of 1.738 g/cm^3 this is what i did : m= 2* 24.30g/6.022*10^23 = 8.07*10^-23 v= l^2*h v...
February 6, 2009 by sandy

Chemistry
This is a mulit step problem How many grams of barium phosphate are produced from the reaction of 3.50g of sodium phosphate and 6.4g of barium nitrate? The other product is sodium nitrate. 1. Write the balanced equation for the reaction 2. How many grams of barium phosphate ...
October 5, 2006 by Tracey

Chemistry
When burning a Magnesium Ribbon, would the color (the white dust) that it changed to be a chemical change? Or how about the spark it makes (I am just in basic chemistry, so that spark might be counted as a chemical change)? So far I got from the help for Drbob: 1.Reacts with ...
January 29, 2009 by Chopsticks

chemistry
​An empty glass container has a mass of 418.634 grams. It has a mass of 419.514 grams after it has been filled with nitrogen gas at a pressure of 790 mmHg and a temperature of 15oC. When the container is evacuated and refilled with a certain element X at a pressure of ...
December 2, 2015 by Noora

Physics
Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of 62.0 atmospheres and a temperature of 293 K. The tanks are stored in a separate room, and the oxygen is pumped to the patient's room, where it is administered at a pressure of 1.00 ...
January 6, 2009 by Z

Chemistry
For the following, 2HBr (aq) + Ba(OH)2 (aq) ---> 2H2O (l) + BaBr2 (aq) write the net ionic equation including the phases
October 4, 2013 by Chelsea

Chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.890-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
September 13, 2011 by Mike

Chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.890-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
September 13, 2011 by Mike

Chem
Question 11 Marks: 4 Consider the equilibrium of water with gaseous hydrogen and oxygen: Give the value of for this reaction, if it is written as: Choose one answer. a. -7.8 x 10^-16 b. -3.9 x 10^-16 c. 1.3 x 10^-15 d. 6.4 x 10^-14 e. 3.6 x 10^2
March 25, 2010 by CAA

Chemistry: Stoichiometry
calculate the number of oxygen needed to oxidize 12.5grams of glucose (C6H12O6) into carbon dioxide and water. (Combustion reaction)
April 14, 2011 by Opo

Chemistry: Stoichiometry
calculate the number of oxygen needed to oxidize 12.5grams of glucose (C6H12O6) into carbon dioxide and water. (Combustion reaction)
April 14, 2011 by Opo

stoichiometry
What mass of nitrogen monoxide can be made by the reaction of 8.00 g ammonia and 17.0 g oxygen? correct answer is 12.8 0.1 (g) I keep getting 14.1 g and that the limiting reagent is NH3 What am I doing wrong?
March 1, 2012 by Rose Bud

chemistry
The value of ΔH for the reaction below is -1107 kJ: 2Ba (s) + O2(g) → 2BaO (s) How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s)?
November 1, 2014 by Anonymous

chemistry
a compound containing 3 atoms of carbon and 8 atoms ofhydrgen is combined in a reaction with oxegyn molecules the two end products of this eqation are carbon dioxide co 2 and water what elemement should i look at first in balancing this eqation oxygen hydrgen carbon or dioxide...
May 12, 2008 by andrea

Chem
Sodium cyanide NaCN is a solid which melts at 564C to give a liquid that conducts electricity, It also dissolves in water to give a conduction solution. Deduce the type of bonding that holds the compound together and why? Write a balanced chemical equation for the reaction ...
March 12, 2007 by Anthony

Chemistry
3.25g of zinc was added to 50cm^3 of a 4.0 molar dm^-3 HCl. When the reaction was completed the temperature rose by 28 degrees celcius. (a) Is the reaction exothermic or endothermic? (b)All the zinc dissolve in this reaction. How many moles of zinc reacted? (c) How many moles ...
March 24, 2014 by Jessica

chemistry
Equation- Mg + 2HCl -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75g of HCl? To get the volume of hydrogen, you need to know how many MOLES of hydrogen are produced. To know this, you need to know how many ...
January 28, 2007 by student

Chemistry
CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION: IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ) A. WHAT IS THE OXDATION NUMBER OF IODINE IN THE IODATE ION? I GOT IO3^6(AQ)? B. WHICH SPECIES IS THE REDUCING AGENT I GOT AL^3+(AQ) C. USING THE OXIDATION AND REDUCTION HALF REACTIONS ...
November 30, 2011 by PAM

chemistry
sulfur + oxygen -> sulfur dioxide Thanks. Do you have a question about this reaction?
August 19, 2007 by inna

chemistry
Ammonia reacts with oxygen in the presence of a platinum catalyst to give nitric oxide and water, according to the following gas phase equilibrium: 4NH_3(g) + 5O_2(g) <---> 4NO(g) + 6H_2O(g) H = −906 kJ mol^−1 What is an appropriate equilibrium expression ...
January 3, 2009 by trigger

chemistry
Zinc metal reacts with HCL similarly to magnesium: Zn(s) + 2HCL(aq) = ZnCl2(aq) + H2(g). the H2 gas produced was collected over water at 25 degrees Celsius and had a volume of 7.80L at 0.980 atm. How many grams of Zn were consumed in the reaction? (Vapor pressure of water at ...
April 28, 2012 by preshi

Chemistry
How many grams of aluminum oxide can be formed by the reaction of 41.2 g of aluminum with oxygen?
January 19, 2016 by Cassidy

chemisty
1.5 grams hydrogen 12 oxygen 2gram hydrogen 16 gram oxygen 2.5grams hydrogen 20grams oxygen
December 14, 2012 by dionna

chemisty
1.5 grams hydrogen 12 oxygen 2gram hydrogen 16 gram oxygen 2.5grams hydrogen 20grams oxygen
December 14, 2012 by dionna

Chemistry
The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.60mL of ethanol (density=0.789g/ml) was allowed to burn in the presence of 15.45g of oxygen gas, 3.70mL of water (density=1.00g/ml) was collected. a)Determine the theoretical yield of H2O for ...
October 21, 2014 by Tami

Chemistry
I don't quite understand these questions.. Please help, thank you! 1. What happens Qualitatively on both the Macroscopic and Atomic Levels when Zinc, Iodine and Water are mixed? Does a Reaction occur? 2. If a Reaction does take place, are the Physical and Chemical Properties ...
September 22, 2011 by John M.

physical science
What formula can be used to find the surface area on the rate of reaction, when adding rennies or cal-C-vitas to vinegar?
February 13, 2011 by Simmy

physical science
true /false for every action, there is an equal and opposite reaction is best defined as Newton's Third Law
May 23, 2011 by peter

Chemistry
Problem: Calculate the pH titration of 50 mL of 0.02M H3PO4 from pH 1 to 13 with 0.4M NaOH. So I believe the balanced reaction is: H3PO4 + OH --> H2PO4 + H2O (Since Na I believe is insignificant, maybe that's wrong. If so then, H3PO4 + NaOH --> NaH2PO4 + H2O) ICE table...
January 17, 2015 by C

chemistry
When two solutions are mixed and a new color is observed, is this color change an indication that a chemical reaction has occurred? Explain. It is not possible to directly observe chemical bonds breaking and forming during a reaction, molecules and atoms are way too small. ...
October 5, 2012 by chemdummy

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