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

78,095 results, page 96

Algebra

1. Find the slope of a line that passes through (-2 -3) and (1 1). a. 1/3 b. 1 c. 2 d. 4/2 2. For the equation -4y=8x, what is the constant of variation? a. -4 b. -2 c. 1 d. 2 3. What is an equation in slope-intercept form for the line that passes through the points (1,-3) and...

physics

water flow at 0.65m/s through a 3-cm diameter hose.at the end of the hose is a 0.3cm diameter nozzle,at what speed does the water pass through the nozzle?

Algebra 2

1. Find the slope of the line through the pair of points. (-1/3,0) and (-1/2,-1/2) Choices: -3 1/3 -1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,-3) Choices: -8/7x+y=-61/7 -8/7x-1=-61/7 -8/7x+y=61/7...

Excel formula help

Formula to multiply the number in cell 4k times standard deviation of the numbers in cell z2 through z10 I don't understand cell z2 through z10 I have never had excel (4kxz2xz10) Please write this correctly

Bio

Just needed some clarity for exactly why. Any help would be helpful! Would yeast ever go through all the stages of respiration as humans? Why? & also Would humans in general ever go through fermentation as yeast cells do?

chemistry

QUESTION 10 Ammonia gas is formed from nitrogen gas and hydrogen gas according to the following equation: N2 (g) + 3H2 (g) Imported Asset 2NH3 (g). If 112 grams of nitrogen gas is allowed to react with an excess of hydrogen gas to produce 120 grams of ammonia, what is the ...

Math

What is the y-intercept of y = 2/3x + 2? I have to write it out but how? A line has a slope of 1/2 and passes through the point (0,5). What is the equation of the line? A)y = 1/2x + 5 B)y = 1/2x - 5<--- C)y = 5x + 1/2 D)y = -5x + 1/2 Find an equation of the line that passes...

physics again

Why don't sparklers burn you? i don't understand if they're hot then how do they have little heat? and were learning about electric forces so it must have something with that Sparklers produce light by means of an electroluminescent reaction. A chemical reaction excites an ...

Biology(Anatomy&Physiology)

1)Which organelle makes most ATP 2)The chemical reaction that joins two amino acids is called 3)In a single molecule of water which type of bond holds the H to the O? 4)Which type of chemical bond results from the transfer of an electron from one atom to another 5)A chemical ...

Chemistry

copper is a product of the reaction that occurs when dry ammonia is passed over a sample f heated copper(2) oxide.The equation for the reaction is given: 2NH3+3CuO=3Cu+3H2O+N2 Calculate the mass of copper produced if 0.12dm^3 of nitrogen is produced at room temperature and ...

Science Chemistry

LIST: Sodium carbonate. Calcium carbonate. Zinc sulfate. Zinc nitrate. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by a precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation reaction...

chemistry

Given this data in a study on how the rate of a reaction was affected by the concentration of the reactants Initial Rate, RUN #(A, M) (B, M) (C, M) (mol L-1 s-1 1 0.200 0.100 0.600 5.00 2 0.200 0.400 0.400 80.0 3 0.600 0.100 0.200 15.0 4 0.200 0.100 0.200 5.00 5 0.200 0.200 0....

AP CHEMISTRY

Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5, Ka2= 6.2E-8, and Ka3= 4.2E-13 1) Write the chemical equation for the first ionization reaction of phosphoric acid with water 2)Write the equilibrium ...

physics

Sound does not travel through a vacuum. How do we know that light does? Explain how you can see ordinary nonluminous classroom objects. Light? Through what medium does starlight reach us? We see nonluminous objects mainly with reflected light.

NEED HELP POSTED TWICE

1. Find the slope of the line through the pair of points. (-1/3,0) and (-1/2,-1/2) Choices: -3 1/3 -1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,-3) Choices: -8/7x+y=-61/7 -8/7x-1=-61/7 -8/7x+y=61/7...

math

An experiment consists of drawing one ball from a box containing 5 white balls numbered 1 through 5 and black balls numbered 6 through 10. Find the probability that a randomly selected ball is black and numbered 7.

chemistry

When 0.752 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 12.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...

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 ...

Music Studies

What form is Philip Glass's "Einstein on the Beach" Knee Play 1? a. through-composed b. variation form I believe it is variation form since through-composed is supposed to be non-repetitive and this piece is quite repetitive. Is this right?

Physics

Electric charge flows through a wire, which naturally has a cylindrical cross section. Suppose the charge has a current density given by J = A/r, where A is a constant and r is the distance to the wire's central axis. How much current flows through the wire if its radius is R?

physics

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

A wheel has a constant angular acceleration of 2.5 rad/s2. Starting from rest, it turns through 200 rad. (a) What is its final angular velocity (in rad/s)? (Enter the magnitude.) (b) How much time elapses (in s) while it turns through the 200 radians?

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-...

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 ...

Chem

Consider the decomposition of a metal oxide to its elements, where M represents a generic metal. M203(s)<---> 2M(s) + 1/2 O2(g) info given for Gf(kJ/mol): M203= -6.00 M(s)=0 O2(g)= 0 1.) what is the standard change in Gibbs energy for rxn as written in forward direction...

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 ...

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 ...

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...

Art

an environment artist created a piece in protest of trash. Anticipation negative public reaction, the artist decided to display the work anyway. what is the most likely reason? A. The artist believed that the purpose of the work was to stir up awareness B. The artist did not ...

Art

An environment artist created a piece in protest of trash. Anticipation negative public reaction, the artist decided to display the work anyway. what is the most likely reason? 1. The artist believed that the purpose of the work was to stir up awareness 2. The artist did not ...

science;chem

The hydrolysis of ethyl acetate (CH3COOC2H5) by sodium hydroxide yields ethanol (C2H5OH) and sodium acetate (NaO2CCH3) by the reaction shown, which follows second order kinetics. In an experiment 500 mL of 0.1 M ethylacetate in water is mixed with 500 mL of 0.1 M NaOH in water...

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 ...

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 ...

chemistry

sodium burns in chlorine to produce sodium chloride according to the reaction: 2Na(s) + Cl2(g) = 2NaCl(s). A student is asked to predict the mass of sodium chloride produced when 71 g of sodium is placed in a container of 200 g of chorine. The container is heated until the ...

CHEMISTRY

You carefully weigh out 20.00 g of CaCO3 powder and add it to 81.00 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80 g . The relevant equation is CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaCl2(...

Chemistry

When iron metal reacts with oxygen, the reaction can form Fe2o3 (numbers are subscripts). Write a balanced chemical equation for this reaction and find the number of moles of oxygen that are needed to form 6 mol of Fe2o3. Show your work. I am really stuck and I don't know how ...

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

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...

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

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 ...

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...

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 ...

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?

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...

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!

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 ...

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 ...

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 = ...

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??

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?

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