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

78,695 results, page 97

Language PLZZ HELP ME!!!!!

"Full Fathom Five" by - William Shakespeare Full fathom five thy father lies; Of his bones are coral made; Those are pearls that were his eyes; Nothing of him that doth fade But doth suffer a sea change Into something rich and strange. Sea nymphs hourly ring his knell; Ding-...

statistics

AB ia a uniform rod of length 120 cm and weight 18kg.wt it rotates about a hinge at its end A. its end B is pulled by a light string whose other end is tied to point C over A. the rod is in equilibrium when it inclines to the horizontal at 30degree if the reaction of the hinge...

Social Studies

Why were many countries still dependent on outside help from other nations, such as the United States, following their independence in the 1800s? A. The colonies were weak, and other nations promised to maintain military bases in their countries in order to prevent further ...

Literature

Choose the meaning of the bold word for questions 1–4. 1. He had left school in junior high, "ostensibly" because his mother was ill. (“Delfino II: Diez in the Desert") (1 point) oddly surely fortunately supposedly * 2. And I throbbed with a burning desire / To travel this...

Physics

Since moment of inertia is a scalar quantity, a compound object made up of several objects joined together has a moment of inertia which is the scalar sum of the individual moments of inertia. A) A wooden cylinder has mass m and radius R. To be used as a machine part, its ...

3 grade english ms sue

SEQUENCE OF EVENTS THE SEQUENCE OF EVENTS IN A STORY IS THE ORDER IN WHICH EVENTS HAPPEN. clue words, such as first,next,then, and finally are often used to signal the sequence of events. dates and times can clues. sometimes, no clue words are used at all. directions read the ...

Chem II

The equilibrium constant, Kp for the reaction PCl5 <---> PCl3 + Cl2 is 1.05 at 250 degrees C. The reaction is started with PCl5, PCL3 and Cl2 at 0.177, 0.223, and 0.111 atm at 250 degrees C. When the reaction comes to equilibrium, the pressure of _________ PCl3 must have...

English

Tomorrow we have several events. I'd like you to know the schedule of our school. From June 2 through June 4, second year students have a school excursion (trip), which is a kind of study tour. They have a day off on June 5th. So you don't need to go to their classes for ...

chemistry

Given one of the starting materials and end product for each of the following reactions, show all reactants, reaction conditions in brackets (where known) and products. sorry i know this question has been posted already, but i need help. could you explain to me how to do them...

Chem

Change in enthalpy problem. Consider the reaction represented below. Referring to the data in the table below, calculate the standard enthalpy change for the reaction at 25 degrees C. O3(g)+NO(g)-->O2(g)+NO2(g) Standard enthalpy of formation in kJ/mol: O3(g) 143 NO(g) 90 ...

Chemistry

What is the difference between a chemical change and a chemical reaction?? My answer: A chemical change leads to a solidifed chemical reaction but more or less they are the same thing because it's a change in which one or more pure substances are converted into diffeent pure ...

physics

In a long jump, an athlete leaves the ground with an initial angular momentum that tends to rotate his body forward, threatening to ruin his landing. To counter this tendency, he rotates his outstretched arms to "take up" the angular momentum. In 0.393 s, one arm sweeps ...

Chemistry

For the following reaction, 5.20 grams of propane (C3H8) are allowed to react with with 23.1 grams of oxygen gas. propane (C3H8) (g) + oxygen (g) carbon dioxide (g) + water (g) What is the maximum amount of carbon dioxide that can be formed? grams What is the FORMULA for the ...

chemistry

what is a simplified way of representing an organic compound by showing only rh carbon carbon bounds

Inorganic Chemistry

In the molecular compound [Co(NH3)3(DMF)](NO3)3 what is the mode of bonding in which DMF is preferred?

math/algebra

solve the compound inequality. 2x-7 / 6 is less than or equal to -7, or 2x-7 / 6 is greater than or equal to 5 I came up with -35/2 or 37/2 but it's incorrect. help?!!

chemistry

Draw all possible structures of an organic compound with 6 carbon atoms that has a 4 carbon chain

chemistry

what is the percent composition by mass of water in a compound with a gram formula mass of 4905 g/mol

Chemistry

Which compound is most polar in nature? a) CO2 b) H2O c) F2 d) NaCl i think its NaCl. am i right ?

maths

how long will it take a sum of money to tripe itself at (i) 9.5% compound interest and (ii) 9.5% simple interest?

maths

how long will it take money to triple itself at 9.5% compound interest and 9.5% simple interest respectively?

Math-so confusing :(

Convert the compound statement into words. p = Students are happy. q = Teachers are happy. ~(p V ~q)

chemistry

Can u help me plz.A compound producd 1200cm3 of N2 @ rtp.a) how many N2 molecules were in the sample & wat mas of N2 is producd

business math

Manually calculate the compound interest on an investment of $8500 at 6% interest, compounded semiannually, for 18 mo.

Chemistry

What is the emperical formula of a compound that contains 0.04moles of sodium, 0.04moles of sulphur, and 0.06moles of oxygen?

chemistry

a compound is found to be 94.1% o and 5.90% h. its molecular mass is 34.0. what is its molecular formula A. H3O2 B. OH C. H2O D. H2O2 I think D

english

i need help, i am writing a paper on gay marriage. I need to write a compound-complex sentence on it too. help!

chemistry

Carbon reacts with chlorine and hydrogen to form the compound CH3Cl. (a) Construct the structure of CH3Cl.

Chemistry

The compound M2X3 has a molar solubility of 0.0190 M. What is the value of Ksp for M2X3? Here are the choices: 1. 3.52 × 10^-6 2. 4.12 × 10^-5 3. 8.91 × 10^-8 4. 2.48 × 10^-9 5. 2.67 × 10^-7

business math

A simple interest calculation provides a useful estimate of what compound interest will be if ____________

Algebra

The pH level of a popular shampoo is between 6.0 and 6.5 inclusive.What compound inequality shows the pH levels of this shampoo?

Chemistry

How do we do charge balance and mass balance? Plz give me an answer on a general basis so that i can do it for any compound i get. Thanks

maths

The compound interest on a certain sum for 2 years is Rs 41 and simple interest is Rs 40.Then the rate per annum is

Maths

calculate the difference between the compound interest and the simple interest on R2000000 at 6% p.a. after 3 years

math

Calculate the compound interest on 7400 in 4years at 6percent p.a if the Interest is calculated every 3months

Chemistry

The functional group contained in the compound O || CH_3-C-O-CH_3 is a(n). A)carboxy B)amine C)ester D)amide

chemistry

How do you know if a compound is predicted to be polar or non-polar? Especially if they use imaginary elements as examples?

chemistry

a )what use of carbon , properties of carbon? b) is their any organic compound that synthsies like urea in lab?

Math

Find the equation of the line that has the same slope as the line through points (0,4) and (-5,7). But goes through point (-6,4) I don't get how to find the equation of the line

Chemistry

Table sugar consists primarily of sucrose, C12H22O11(s). The standard enthalpy of combustion for sucrose is the ΔHo for the reaction: C12H22O11(s) + 12 O2(g) → 12 CO2(g) + 11 H2O(l) Calculate this ΔHo. Give your answer in units of kJ to five significant figures. Use the ...

Unscramble

Can you unscramble afsedrniru? It is either a compound or collective noun.

help

2x-3/8 less then or equal to-8 or 2x-3/8 greater then or equal to 4 what is the solution of the compound inequality is

5th grade

How do you figure out area of compound figure

chemistry

if you have 720 g of the compound CaBr2 how many moles of it do you have

science

the atomic mass of N is 14 u and that of Ca is 40 u. the proportion of n by mass in the compound Ca3N2 is what?

chemistry

What is the oxidation number of PO4 in the compound Ca3(PO4)2? how do you get it?

Logic and Design

What logic is used when pseudocoding compound conditions?

math

Please solve and explain how to solve the compound inequality: 4 < 4a +3 < 18

math

Graph each compound inequality. f>3 or f< -2 Which one do I graph? Im confused.....

math

Graph each compound inequality. f>3 or f< -2 Which one do I graph? Im confused.....

solubility

The Ksp of mercury II hydroxide is 3.60 x 10^-26. Calculte the solubility of this compound in g/L

chemistry

how do you tell whether or not a compound is polar or non-polar?

chemistry

how do you tell whether or not a compound is polar or non-polar?

chemistry

how do you tell whether or not a compound is polar or non-polar?

Science

What type of simple machine is a doorknob? or is it a compound machine?

Chemistry

Attachment of [XeF]+ ions with [AsF6]- ions in their compound

Algebra2

Please,Please explain how you get your answer."And"compound inequality -1<3+2x<11 and 1-x>-3 or 5x-1>19 - - Thank You

Chemistry

How many atoms of carbon are present in 49 g of a compound that is 54 . 1% carbon, by weight?

Chemistry

What is the name of the compound NO3. (Not NO3-, nitrate)???? Please help!

Chemistry

Based on pressure values for each component of the reaction, what is the value of the reaction quotient, Q? Equation: C2H2 + 2 H2 -> C2H6 C2H2 has a pressure of 5.05 atm H2 has a pressure of 4.35 atm C2H6 has a pressure of 0.0225 atm

Chemistry

Based on pressure values for each component of the reaction, what is the value of the reaction quotient, Q? Equation: C2H2 + 2 H2 -> C2H6 C2H2 has a pressure of 5.05 atm H2 has a pressure of 4.35 atm C2H6 has a pressure of 0.0225 atm

Biochem

Glycerol 3-phosphate dehydrogenase catalyzes the reversible reaction: G3P + NAD+ --> NADH + H+ + DHAP If in the cell, the concentrations of G3P, NAD+, NADH, and DHAP are 2 mM, 4 mM, 6 mM, and 8 mM respectively. Determine if the reaction spontaneous as written? DHAP + 2e...

chem help

The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 1.26 grams of methane are reacted, how many grams of water vapor are produced? B. If 2.796 grams CO2 are released, how many grams ...

Science

4)Explain why,when a soccer ball is kicked, the action and reaction forces don't cancel each other. a)The force of the player's foot on the ball greater than the force on the ball on the player's foot. b)They act on two different objects. c)The reaction force happens after the...

chemistry

Hydrogen peroxide can be produced in the lab by reacting barium peroxide with hydrochloric acid. another product of the reaction is barium chloride. 1). what is the balanced chemical equation for the reaction? 2). what mass of hydrogen peroxide should result when 1.50g of ...

chemistry

The reaction for the complete combustion of acetylene is shown below. C2H2(g) + 5/2 O2(g) -----------> 2 CO2(g) + H2O(l) ΔH = -1299 kJ Use this reaction and the data below to calculate the heat of formation for acetylene. ΔHf[H2O(l)] = -285.8 kJ/mol Î...

chemistry

The reaction for the complete combustion of acetylene is shown below. C2H2(g) + 5/2 O2(g) -----------> 2 CO2(g) + H2O(l) ΔH = -1299 kJ Use this reaction and the data below to calculate the heat of formation for acetylene. ΔHf[H2O(l)] = -285.8 kJ/mol Î...

chem

A piece of lithium metal with a mass of 3.25g reacts with sufficient hydrochloric acid in a closed flask containing 235 mL of air originally at 0.991 atm and 18 C. The heat released in this reaction raises the temperature to 41.0 C inside the flask. a)What is the pressure in ...

chem

The reaction AB(aq)->A(g)+ B(g)is second order in AB and has a rate constant of 0.0282 M^{-1} s^{-1} at 25 Celsius. A reaction vessel initially contains 250 mL of 0.105 M AB which is allowed to react to form the gaseous product. The product is collected over water at 25 ...

chemistry

Given these standard reduction potentials at 25oC: Cr3+ + e- -> Cr2+ (E1^o = -0.407V) Cr2+ + 2e- -> Cr(s) (E2^o = -0.913V) Determine the standard reduction potential at 25oC for the half-reaction equation: Cr3+ + 3e- -> Cr(s) This seems like a really simple problem (...

Chemistry

Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 What is the maximum mass, in kilograms, of ...

calculus

Integrate: dx/sqrt(x^2-9) Answer: ln(x + sqrt(x^2 - 9)) + C I'm getting the wrong answer. Where am I going wrong: Substitute: x = 3 * sec t sqrt(x^2 - 9) = sqrt(3) * tan t dx = sqrt(3) * sec t * tan t Integral simplifies to: sec t dt Integrates to: ln|sec t + tan t| + C t = ...

Chemistry - Chemical Kinetics

1) if the concentrations of trace constituients of the atmosphere are expressed in molecules/cm3 , what would be the units of reaction rate???? i think the ans is molecules/cm3 per seconds since the usual units of reaction rate is mol per dm3 per seconds.....am i correct?

Chemistry

For the reaction: V2O5 + 6HCl --> 2VOCl3 + 3H2O If 13.65g of VOCl3 was produced in this reaction, how many grams of V2O5 were reacted in excess HCl? I used stoichiometry and converted 13.65g of VOCl3 into grams of V2O5. I got 73.28 g. However, I feel like this isn't right ...

Chemistry

Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = -118 kJ Calculate the heat when 103.6 mL of 0.500 M HCl is mixed with 300.0 mL of 0.550 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0°C and that the final ...

Chemistry

Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = -118 kJ Calculate the heat when 114.8 mL of 0.500 M HCl is mixed with 300.0 mL of 0.400 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0°C and that the final ...

physics - fluids

A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. How much force is required to hold a 7.5 cm diameter hose delivering 450 L/min through a 0.80cm diameter nozzle?

Physics

When observing a stem of coconut trees during sunshine,how the light cannot pass through the leaves of the coconut tree even though it is thin and it form shadow, whereas the stem allows the light to pass through them but their stem is thick and how possible this could be??

English

Can you please check these instructions, Writeacher. Thank you very much. English remedial test 1) Complete the following sentences with must/mustn’t, have to, don’t have to, should/shouldn’t 2) Fill in the correct future form (will future, going to future, Simple ...

math

A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 56 months and a standard ...

algebra II

Find the equation of the line With a slope of (-1/3) that goes through the point (2, -4) With a slope of 3 that goes through the point (-5, -1)

algebra

Find the equation of the line With a slope of (-1/3) that goes through the point (2, -4) With a slope of 3 that goes through the point (-5, -1)

Math

If the line passing through the points (a, 1) and (−2, 8) is parallel to the line passing through the points (12, 5) and (a + 2, 1), what is the value of a? a =

Pre Calc

If the line passing through the points (a, 1) and (2, 8) is parallel to the line passing through the points (12, 6) and (a + 2, 1), what is the value of a?

Mathmatics

The line Q passes through the points (-10,-2) and (-8,-8). The line R passes through the points (1,2) and (10,a). The lines Q and R are perpendicular. Find a. Thanks.

algebra

Find the slope of any line perpendicular to the line through the points (0,5) and (-3,-4) Write the equation of the line passing through each of the given pairs of points. Write the answer in slope-intercept form, where possible. (-1,3) and (4,-2)

chemistry

If 4.83 mL of an unknown gas effuses through a hole in a plate in the same time it takes 9.23 mL of argon, Ar, to effuse through the same hole under the same conditions, what is the molecular weight of the unknown gas?

physics

Oil Flows through a horizontal cylindrical pipeline with an average speed of 1.2 m/s. The pipeline has a radius of 0.5 metres. Calculate the volume of oil (in cubic metres) which flows through this pipeline in one hour.

Physics help

1. if the magnetic field is 2.1 m from a current carrying wire is 7.1x10^-5 T, what is the current flowing through the wire? 2. The electromagnet in an MRI has a magnetic field of 2.5 T. If there are 100 A of current running through the magnet, how many turns are there in a 1....

Physics

A meter stick is rotated about the end labeled 0.00 cm, so that the other end of the stick moves through an arc length of 8.60 cm. Through what arc length s does the 25.0-cm mark on the stick move? I have no clue what Im doing, I know S=tr but what is t?

English

Hello. Will you please help me with the word order: 1)US forces have killed Osama bin Laden, who with his wives and sons has been living in a luxury compound in Pakistan for many years. (Is "who with" natural here; does "who together with" or "who along with" sound better?) 2)...

Chemistry

Using data from the following reactions and applying Hess's law, calculate the heat change for the slow reaction of zinc with water (answer must be in kJ/mol Zn): Zn(s) + 2 H2O(l) ----> Zn^2+(aq) + 2 OH-(aq) + H2(g) (ΔHrxn = ?) H+(aq) + OH-(aq) ----> H2O(l) (Δ...

chemistry

Using data from the following reactions and applying Hess's law, calculate the heat change for the slow reaction of zinc with water (answer must be in kJ/mol Zn): Zn(s) + 2 H2O(l) ----> Zn^2+(aq) + 2 OH-(aq) + H2(g) (ΔHrxn = ?) H+(aq) + OH-(aq) ----> H2O(l) (Δ...

Chemistry

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen 14) monoxide and oxygen according to the following chemical equation. 2 NO2(g) → 2 NO(g) + O2(g). A sample of NO2(g) is initially placed in a 2.50-L reaction vessel at 300°C. If the ...

Chemistry

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen 14) monoxide and oxygen according to the following chemical equation. 2 NO2(g) → 2 NO(g) + O2(g). A sample of NO2(g) is initially placed in a 2.50-L reaction vessel at 300°C. If the ...

Biotechnology

Consider the titration of 25.0 mL of 0.050 0 M Sn2+ with 0.100 M Fe3+ in 1 M HCl to give Fe2+ and Sn4+, using Pt and calomel electrodes. (a) Write a balanced titration reaction. (b) Write two half-reactions for the indicator electrode. (c) Write two Nernst equations for the ...

physic

The drawing shows a device that you can make with a piece of cardboard, which can be used to measure a person's reaction time. Hold the card at the top and suddenly drop it. Ask a friend to try to catch the card between his or her thumb and index finger. Initially, your friend...

English

I forgot to add the following alternatives. Thank you. 1) How are you? I'm well. I'm going to the mountains in Aosta Valley (to Aosta Vally- a region in Italy). 2) I destroyed/crashed/smashed/broke down/bumped the car. Are the above verbs possible with CAR? 3) Can you suggest ...

chemistry

I have to calculate the ΔV= final volume-initial volume For the first trial the final volume was .005mL the initial volume was .03mL, which equaled to -.025mL. The volume was negative because it was exothermic reaction. For the second trial the final volume was 0.015 and ...

chemistry

I have to calculate the ΔV= final volume-initial volume For the first trial the final volume was .005mL the initial volume was .03mL, which equaled to -.025mL. The volume was negative because it was exothermic reaction. For the second trial the final volume was 0.015 and ...

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