What is the empirical of compound (X) going through the following decomposition reaction?

77,997 results, page 27

Chemistry

Can someone please check my answers for me for the following questions. THANK YOU! 1) An ion with an oxidation number of 3+ can combine with three other ions, if each of these ions has an oxidation number of....3- 2) The correct formula for nickel(II) chloride is...NiCl2 3) A ...

chemistry

In the following half equation, which is the oxidizing agent? NO3–(aq) + 4H+(aq) + 3e– <--> NO(g) + 2H2O a. NO3– b. H+ c. e– d. NO e. H2O An oxidizing agent is a chemical compound that readily transfers oxygen atoms, or is a substance that gains electrons in a ...

Chemistry

1. How many moles of Al(CN)3 are in 199 g of the compound? 2. 96.0 mol of P4O10 contains how many moles of P? 3. If 4.71 moles of C5H12 reacts with excess O2, how many moles of CO2 will be produced in the following combustion reaction? C5H12+8O2 -> 6H20+5CO2 4. How many ...

Chemistry

1. How many moles of Al(CN)3 are in 199 g of the compound? 2. 96.0 mol of P4O10 contains how many moles of P? 3. If 4.71 moles of C5H12 reacts with excess O2, how many moles of CO2 will be produced in the following combustion reaction? C5H12+8O2 -> 6H20+5CO2 4. How many ...

Physical Science

I don't quite understand Actions and Reactions. [For every action, there is an opposite and equal reaction.]Can someone let me know if I am correct on this question or not? Identify the action and reaction forces in the following situations: 1. You kick a soccer ball and the ...

chem

Predict the direction of the net reaction in each of the following system, as a result of increasing the temperature. Delta H is an indicator or whether the reaction releases heat delta H(-), or heat is absorb delta H(+). Write where the direction shifts. a)3O2(g)=2O3(g) H=+...

maths

find the gradient of the tangent to the parabola y=4x-x^2 at (0,0) hence calculate the size of the angle between the line y=x and this tangent. (as i cant show you the diagram all that it shows is the line going through (0,0) and having one point of contact)

math

I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0)

chemistry

I need to find out which structure is more correct: Reaction of the compound C3H8O with CrO3 (oxidizing agent) yields acetone. Which of the three structures is more correct? (My three structures are as follows: 1-propanol, 2-propanol, and methylethyl ether.)

science

3. Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s) + 2HBr(aq) ---> FeBr2(aq) + H2(g) What mass of HBr (in g) would you need to dissolve a 3.2 gram pure iron bar on a padlock? What mass of H2 would be produced by the complete reaction of the ...

chemistry

name the following compound by the stock system (international systemic naming system: 1)Li2CO3 2) MnO2 3) HBrO4 4) (NH4)2 S 5) H3PO3 6) P2O5

Ochem

Which of the following is NOT a proper name for an organic compound (because it doesn't identify the longest possible carbon chain)? 2-methylpentane 3-methylpentane 2-ethylhexane 2,3-dimethyl butane

chemistry

When magnesium burns in air, it reacts with oxygen and nitrogen, forming magnesium oxide and magnesium nitride. If 20.0L of air is available for this reaction, what mass of each compound can be formed? (Remember air is about 80% Nitrogen and 20% Oxygen)

8th grade

When a truck pulls a trailer, the trailer and truck accelerate forward even though the action and reaction forces are the same size but are going in opposite directions. Why don't these forces balance each other out?

Chemistry

A chemical reaction is run in which 132 joules of work is done by the system amd the internal energy changes by 469 joules. Calculate the amount of heat transferred. u=q+w I was going to do 469 = q + 132 but I think this is wrong.

Chemistry

Help please! I need to identify an organic compound and tell the functional group of the molecule- the compound is single-bonded ,it is composed of a middle chain H,C,C,H. Off both carbons are single chains consisting of a H above and below each of the carbon. What ...

Chemistry

What if when I find my product, I get the same compound as I did in my reactant? For example, FeCl3 + HCl ->FeCl3 + HCl. Then something is wrong. In this case, FeCl3 and HCl usually don't react. In very concentrated solutions of HCl, the FeCl4^- or FeCl6^-3 ion can form. In...

Science

How does a nuclear power plant produce energy? A. Through solar panels B. Through nuclear fission reactions C. Through geothermal heat D. Through nuclear meltdown reactions I am not really sure what the answer is but I am thinking…c? Or I guess d?

Chemistry

Suppose a compound could point in any of two directions in the solid and still have the same energy. How many molecules would there be if the total entropy of a solid sample of this compound was 8.174e-9J/K I used S= klnW and got lnW = 5.92e14. How do i get the number of ...

physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...

physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...

physics

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...

Inorganic chemistry

Calculate the standard reduction potential for the following reaction at 25 degrees Celsius Ag(NH3)2^+(aq) +e^- ==> Ag(s) + 2 NH3(aq) given the following thermodynamic information Ag^+(aq) + e^- ==>Ag(s) E naught = 0.799V Ag^+(aq) + 2NH3(aq) ==> Ag(NH3)2^+(aq) Kf = 1....

math

Use the “difference of squares” rule to factor the following expression 49-4y^2 my answer is going to be (7-2y)(7-2y) I wasn't sure if it could of been (7-2y)(7+2y)

Chemistry

At body temperature (37C), K of an enzyme-catalyzed reaction is 2.3x10^14 times greater than k of the uncatalyzed reaction. Assuming that the frequency factor A is the same for both reaction, by how much does the enzyme the E^a?

Math

The following table shows the rate of water flow (in L/min) through a dam. t (min) 1 6 11 16 21 26 31 V'(t) (L/min) 1 8 2 9 7 5 9 Approximate the total volume of water that passed through the dam from t=1 to t=31 using Simpson's rule, with n=6.

Chemistry

When we test for carbon dioxide gas, we bubble it through limewater and get a white precipitate CaCO3. What is the equation for the reaction? Is it CO2 + Ca(OH)2 --> CaCO3 + H2O

Science--Help.

Which of the following is NOT one of the eight most common elements in Earth’s continental crust? carbon silicon oxygen aluminum The most abundant element in Earth’s continental crust (by weight) is _____. 2. oxygen silicon calcium iron 3. The central region of an atom is ...

English

Im going to post a few i want to check over. I think it is B, C, and A 1. In narration, dialogue should ________. A. be used solely to describe conflict B. be used sparingly and at significant moments C. be used in each paragraph D not be used at all 2. Which event would BEST ...

Chemistry

Can you tell me what the empirical formulas are for C2H6O4 N2O5 Hg2Cl2 C6H12 Thank you!

statistics

What percentage of the area would the empirical rule say is between -3.00 and +3.00

Chemistry

What is the empirical formula if given c-.1929 h-.01079 o-.08566 cl-.1898

managerial economics

calculating empirical production function Dimex Fabrication Co

Statistics

How do I find a p value given the Z statistic using the empirical rule?

compound sentence

1.There was no break between the breakfast and lunch crowds, so Zach's first break was around 2:00. 2.Then he made some notes for the owner, Melanie, who was also the cook on the second shift. I think the compound sentence is the 1st sentence

Pre Calculus

The following table shows the rate of water flow (in L/min) through a dam. t (min) 1 5 9 13 17 21 25 V'(t) (L/min) 6 6 2 2 3 6 2 Approximate the total volume of water that passed through the dam from t=1 to t=25 using Simpson's rule, with n=6.

Ochem

For the reaction between chloroacetic acid and 4-chlorophenolate to synthesize 4-chlorophenoxyacetic acid, why is this reaction a sn2 reaction?

chemistry

In a zero order reaction ,20% of the reaction complete in 10s .How much time it will take to complete 50% of the reaction?

Inorganic chemistry

I'm going to need some help getting this problem started Calculate E for the following electrochemial cell at 25 degrees Celsius Pt(s) ! Sn^2+(aq, 0.50M), Sn^4+(aq, 0.50Mz0 !! I^-(aq, 0.15M) ! AgI(s) !Ag(s) given the following standard reduction potentials AgI(s) + e^- ==> ...

Chemistry

Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. The balanced equation for the reaction is: 2Mg(s)+O2(g)→2MgO(s) When 10.1 g of Mg are allowed to react with 10.5 g of O2, 14.5 g of MgO are collected. a) Determine the limiting reactant for...

Chemistry

The chemical reaction N2(g)+ 3H2(g)<--> 2NH3(g) is at equilibrium. An expirimenter increases the volume of the reaction chamber by 10%. Explain what happens to bith the forward and reverse reaction rates from the moment the volume is changed until equilibrium is ...

Chemistry;HELP

Volume Problems Answer the following questions. Scan and upload your questions and answers to your student section labeled Volume Volume Problems. Identify the following chemical equations by type. 1. If an electric discharge produces 500 cm3 of ozone (O3), how many cm3 of ...

Science

The label on a fertilizer says "ammonium phosphate, muriate of potash, sulfate of potash, and manganese oxide." Is this a mixture, solution or a compound? I don't think it could be a solution, but I'm not sure if it'd be a mixture or a compound-Thank you.

Chemistry

Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 205.0 Na(s) 51.0 Cl2(g) 223.0 Ca(s) 154.8 S(s) 31.8

Chemistry

Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 205.0 Na(s) 51.0 Cl2(g) 223.0 Ca(s) 154.8 S(s) 31.8

chemistry

a compound contains only carbon hydrogen and oxygen analysis of a sample showed that it contained by mass 53.4% carbon and 11.1% hydrogen . what is the simplest formula for this compound .. step by step plese

Grammar: PLEASE HELP

What's the difference among a simple sentence, complex, compound, and compound-complex. I always have a difficult time knowing which is which, except simple sentence of course, that one is easy

96 Elementary

what is the subject and predicate in this sentence. 1.I love my new basketball. also I need to know what the compound subject and , or compound predicate is for this sentence. 1. Amy and her coach worked out a plan.

English-Grammar

After the war, American shipping became vulnerable to attacks by pirates. simple sentence (my answer) compound sentence complex sentence compound complex sentence

Chemistry

Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to make 866 milliliters of ...

English

Which of the following is a correctly written compound word? 1) Thirty one 2) Self-evident 3) Quickly-running 4) Spur of the moment-decision It would be great if you could provide me with a answer and explanation. Thank You

Chemistry - Naming Compounds

Name the following compound. Ba3Pb2 I don't really understand since both the elements are metals and usually these bonds occur with a metal and nonmetal or two nonmetals.

writing

n this discussion, you will post issues related to motivation and learning. Refer to the texts in this section, other texts you have read, and your personal experience and knowledge to support your ideas. Begin your discussion by addressing the following questions: What are ...

Chemistry

Assuming that the gases are ideal, calculate the amount of work done (in joules) in the following reaction. Is work done on or by the system? A reaction in the Mond process for purfying nickel(0) tetracarbonyl at 50-100 degrees Celsius. Assume one mole of nickel is used and a ...

Chemistry

Using data in table below and S °(NH3(g))= 192.5 J·mol-1·K-1, calculate ÄfS° for NH3(g) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 205.0 Na(s) 51.0 Cl2(g) 223.0 Ca(s) 154.8 S(s) 31.8

Math

Compound interest question: When Aaron invested $100 at 4.5% p.a. annually compounding, it amounted to $142.21. For how many years was it invested? Is there a way to solve this question without using the formula for compound interest?

English-Grammar

John Paul Jones moved to America to avoid a trial that involved his handling of a mutiny. simple sentence compound sentence complex sentence (my answer) compound complex sentence

PE

Your life expectancy can be related to the overall well-being of your body, your mind, and your relationships with other people. (true ***) or false Which side of the health triangle corresponds to having loving relationships with other and giving and accepting health? ...

english

Democracy is a noble goal; it is important, however, to protect the minority from the tyranny of the majority. 1. Simple Sentence 2. Compound Sentence 3. Complex Sentence 4. Compound-Complex Sentence

english

5.Unless my girlfriend postpones her visit from Calgary, I will not have time to study for my exam. 1. Simple Sentence 2. Compound Sentence 3. Complex Sentence 4. Compound-Complex Sentence

Pharmacy Calculations

You are given a compound which calls for combining 30 grams of 2.5% hydrocortisone cream with 15 grams of zinc oxide. What is the ratio of the hydrocortisone cream to the total amount of the compound?

Chemistry

Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) → HOCH2CH2OH(l) Use Hess's law to obtain the enthalpy change for this reaction from the following enthalpy changes. 2 C2H4O(g) + 5 ...

chemistry

Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) → HOCH2CH2OH(l) Use Hess's law to obtain the enthalpy change for this reaction from the following enthalpy changes. 2 C2H4O(g) + 5 ...

efe

find the formula for calculating compound interest. If Mr. John Chrystal invests $6,000 today (Present Value) at a compound interest of 9 percent, calculate the Future Value of the investment after 30 years using the compound interest formula. In addition, calculate the Future...

English

I need you to check these sentences for m, please? 1) What's the weather going to be like in Rome tomorrow? 2) It's going to be windy, sunny, foggy,overcast, frosty, rainy,cloudy, misty. stormy. 3) There is going to be thunder and lightning (or they are going to be thunders ...

Physical Chemistry

The presence of a catalyst provides a reaction pathway in which the activation energy of a certain reaction is reduced from 192 kJ·mol-1 to 72 kJ·mol-1. (a) By what factor does the rate of the reaction increase at 281 K, all other factors being equal? (b) By what factor ...

Chemistry

Recall the reactions for this lab: S2O82- + 2I- → 2SO42- + I2 (slow) Reaction 1 The one that delays the solution turning blue: I2 + 2S2O32- → 2I- + S4O62- (fast) Reaction 2 b. All the S2O32 is consumed when the color change occurs. Therefore, Δ[S2O32] = c. Use the ...

Chemistry

Recall the reactions for this lab: S2O82- + 2I- → 2SO42- + I2 (slow) Reaction 1 The one that delays the solution turning blue: I2 + 2S2O32- → 2I- + S4O62- (fast) Reaction 2 b. All the S2O32 is consumed when the color change occurs. Therefore, Δ[S2O32] = c. Use the ...

Math(Please check)

1) Find the equation of the following lines: A)Through the point (-4,2) and perpendicular to the line y=-1/2x +1 y-y1=m(x-x1) The reciprical of -1/2 =2 So my answer is y-2=2(x+4) or simplified y=2x+10 B)Through the point (1,1) and parallel to the line 5y=15x+25 so y-1=15(x-1) ...

english

Each of the following exercises shows the original source, and then a student’s sentence and/or citation about that source. Each sentence and each citation has at least one thing wrong with it (most have more than one). Correct each of them Source C: An article in the ...

general chem

Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, simply write NR. (a) Nickel metal is added to a solution of copper (II) nitrate; (b) a solution of zinc nitrate is added to a solution of magnesium ...

Chemistry

Calculate the molar enthalpy of reaction per mole of carbon in the following reaction: 3 C(s) + 2 Fe2O3(s) + 466 kJ c12-u3_files/i0210000.jpg 4 Fe(s) + 3 CO2(g) a. +466 kJ/mol C b. +155 kJ/mol C c. +117 kJ/mol C d. –466 kJ/mol C e. –155 kJ/mol C

Chemistry

1) The rate expression for the reaction 2 SO2 + O --> 2 SO3 is given by rate = k [SO2]2[O2]. The overall order of this reaction is: first order 2)The rate reaction between A and B is expressed as rate = k [A][B]. To produce the greatest increase in the reaction rate: double...

general chemistry

A reaction involves fictional reagents A & B is begun with the inital concentration of 0.05M A and 0.01M B. The reaction reaches completion in 16 seconds. What is the initial rate of the reaction in respect to A? and what is the order in respect to B

Chemistry

For the reaction given, the value of the equilibrium of the constant at 400 K is 7.0. Br2(g)+ Cl2(g)=2BrCl(g) Does the: Reaction proceed to the left? Reaction proceed to the right? Partial pressure represent a system in an equation?

English

I rewrote the procedures passengers go through when travelling by air. I sometimes doubt whether it is better to use the imperative or the you-form. Can you please help me check them? 1) Enter the airport and check your flight number and the boarding time of your flight on the...

economic

I will deposit $1000 per year for 25 years.� Assuming a 5% compound interest rate, what will my account be worth in 25 years? �Now assume a 10% compound rate and calculate my future balance

Chemistry

Compound Z has a MW of 100. Your lab partner weighed 25 grams of compound Z and dissolved it in water to a final volume of 1 liter. a) What is the concentration of the solution expressed as a percentage by weight (w/v)? b) What is the concentration of the solution expressed as...

English

What type of sentence is this? (simple, complex, compound, compound-complex) 1. It looms menacingly over the road from the roof of a farmhouse, a lying reptile with a seven-foot wingspan. I think it is a simple sentence.

Chemistry

In the gas phase reaction CH4 + H2O → CO + 3 H2 At T = 1500 K , Kp = 11000 Calculate Kp, T = 1500 K , for the following reaction 3 CO + 9 H2 → 3 CH4 + 3 H2O .

chemistry

I want to know if someone could let me know if I have written my balanced equations correct for the following questions. Write a balanced equation for the reaction of zinc with sulfuric acid. Zn + H2SO4 >>> Zn(S04) +H2 Write a balanced equation for the reaction of ...

chemistry

Hello. In the class, we did the experiment to calculate the value of Kc for the following reaction: CH3COOH+CH3CH2OH ÌCH3COOCH2CH3+H2O we measured the mass for 5 cm^3 of all 5 compound above: CH3COOH 5.236 g CH3CH2OH 4.021 g CH3COOCH2CH3 5.020 g H2O 5.020 g HCl 5.098 g when...

physics

Which of the following are not transverse waves? a) Water ripples in a small pool. b) Sound waves traveling through water. c) Radio waves traveling through space. d) Microwaves inside a microwave oven. e) The vibrations on the surface of a drum.

Chemistry

For the reaction 2 NO (g) + Cl2 (g) → 2 NOCl (g) If the concentration of NO is tripled, the rate of the reaction increases by a factor of nine. If the concentration of Cl2 is cut in half, the rate of the reaction is decreased to half the original rate. Find the order of ...

chemistry

A 0.009298-mol sample of an organic compound was burned in oxygen in a bomb calorimeter. The temperature of the calorimeter increased from 23.7oC to 27.1oC. If the heat capacity of the calorimeter is 4.84 kJ (oC)-1, then what is the constant volume heat of combustion of this ...

Chemistry

How would you determine if a given compound is acidic, basic or neutral? Also if given a compound, how would you determine if the state is aqueous (without a chart)?

simple interest and compound interest

the compound interest on certain sum for the third year and fourth year is rs.1815 and rs 1996.50 respectively. what is the annual rate of interest

chemistry

Write the formulas of the compound Pb+4 formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions

chemistry

Write the formulas of the compound Al+3 formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions

Science

4. Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each name. • RbF • CuO • (NH4)2C2O4

CHEMISTRY

sorry! this is the full question: Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 1.78 g of sodium and 2.74 g of chlorine. Which of the following could be the results of the decomposition of the other sample, being consistent...

Chemistry

If you have to write the products of the chemical reaction Fe+O*2( asterisk means subscript),how would you know the charge of Fe in the compound FeO? If the charge is 2+, then the product would be FeO, but if the charge was 3+, then the product would be Fe*2O*3. Thanks!

chemistry

Bromine can be added to limonene to created a brominated compound. The balance equation is shown below. When 613 mg of limonene and 3.5 ml of a 10% (v/v) solution of Br2 in dicholomethane (a solvent) are combined, 959 mg of the product is isokated. Calculate the percent yield ...

Physics

You're driving down the highway at 20m/s when you see a snowman you don't want to crush 35 m in front of you. Your reaction time before stepping on the brakes is 0.5s, and acceleration created by your brakes is 10 m/s^2 what was the distance travelled before coming to a stop? ...

chemistry

the formula: Ca(ClO3)2 --> CaCl2 + 3O2 what mass pf O2 results from the decomposition of 1.00 kg of calcium carbonate

chemistry

What total volume (in lhter at 600 C and 1atm.) could be formed by the decomposition of 16g of NH4NO3 ?

chemistry

What total volume (in lhter at 600 C and 1atm.) could be formed by the decomposition of 16g of NH4NO3 ?

Chemistry 121

How many grams of KCl would be produced from the complete decomposition of 2.75g of KClO3?

Chemistry

How many moles of oxygen molecules would be produced from the decomposition of 25moles of potassium trioxochlorate (v) ?

chemistry

Write the equation for the decomposition of water into its elements. Phase symbols are not graded.

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