# Posts by Princess

Total # Posts: 209

**Math**

that is correct

**Math**

Figure B proves the Pythagorean Theorem. As you may have noticed, the lengths given for both figures are already perfect squares. All you have to do is add the lengths of the legs to see if they equal the length of the hypotenuse/diagonal. Figure A: 9 + 36 = 46... not 64 ...

**math**

Penny put 258 pens in one case.How many pens are in 698741235 cases

**math**

penny put 5 dounts in one pack how many packs will she have in 2587

**physics**

At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?

**Physics**

A glacier moves with a speed of 64 nm/s. How many years would it take for the glacier to move 0.8 km? Assume there are 365 days in a year.

**pure maths**

Factorize Xsquare-6x-3

**chemistry**

what is the vapor pressure of alcohol in 25 degree celcius? the answer should be answered in millimeter mercury. tnx^_^

**Chemistry**

Chemistry

**chemistry- transferring energy**

For the following questions, use the reaction SO3(g) SO2(g) + O2(g), with ÄH = 98.4 kJ/mol and ÄS = 0.09564 kJ/(mol·K). (8 points) i. Draw a possible potential energy diagram of the reaction. Label the enthalpy of the reaction. (2 points) ii. Is the reaction ...

**math**

You have 5 eighth of water you add 3 fourth is ut above or below the water level

**acids and bases**

Use the acid-base reaction HI + CsOH CsI + H2O to answer the following questions. i. What is the Arrhenius acid and what is the Arrhenius base in the above reaction?

**acids and bases**

What is the Arrhenius acid and what is the Arrhenius base in the above reaction?

**8th grade science**

i donw this one before and the answer is b)Balsa

**algebra**

165

**chemistry-balanced redox equations**

Use the following steps to balance the redox reaction below: Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction half-reactions. Make sure each half-reaction is balanced for number of atoms and charge b. Multiply each half-reaction by the correct number, in order to ...

**chemistry- electrochemical cell**

What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)? Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction and which is the reduction reason. What is oxidized in the reaction? What is reduced? In ...

**chemistry- Stoichiometry**

If 852.04 g Al(NO3)3 reacted with the 741.93 g Na2CO3, which would be the limiting reagent? c. Use the limiting reagent to determine how many grams of Al2(CO3)3 should precipitate out in the reaction. d. If only 341.63 g of Al2(CO3)3 precipitate were actually collected from ...

**chemistry**

If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol? A. -4 kJ/mol B. -0.004 kJ/mol C. 0.004 kJ/mol D. 4 kJ/mol

**chemistry- empirical formulas**

since i don't have a teacher. I tried and this is what i came up with. 55.0/atomic massGa 55.0/69.723= 1.27 (rounded) 45.0/atomic massF 45.0/18.998404= 2.37 (rounded) If this is corect what do I do after this. If not can you help me with an headstart please.?

**chemistry- empirical formulas**

Calculate the empirical formula of a molecule with the following percent compositions: 55.0% gallium (Ga) and 45.0% fluorine (F). mass of 100g #of Moles in 100g of the compound Ga55.0% _____ ______ F45.0% ______ _______ c. Determine the molecular formula of a molecule having ...

**chemistry**

Which describes a source of radiation heat? A. Liquid or gas circulating to move the heat B. The sun sending out electromagnetic waves C. Two molecules colliding with each other D. Objects having kinetic energy because of their motion

**chemistry**

What must be known for the rate constant to be calculated from the rate law?

**chemistry**

MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 ...

**chemistry**

MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 ...

**chemistry- Energy in Matter**

Question 1: Kinetic Theory (7 points) a. Briefly state what the kinetic theory says. (2 points) b. Put the following molecules in order from least kinetic energy to greatest. (2 points) Cool water _____ Frozen water _____ Warm water _____ Water vapor _____ c. What temperature...

**chemistry**

A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should she do to correct this situation?

**chemistry**

What is the pOH of a solution with [OH-] = 2.0 10-2?

**chemistry this is confusing to me please help**

chemistry. but its done online and i don't have an teacher to sit down and explain the lessons to me.!!

**chemistry this is confusing to me please help**

1. List at least three things that your body strives to keep constant. Think about what aspects of your body overall, of one body organ, or of your blood stay nearly unchanged all the time. 2. Describe one way in which each of the items you listed in Part 1 could be at least ...

**Acid and Base Equilibrium**

What would happen to a weak base dissociation equilibrium if more products were added?

**chemistry**

What would happen if O2 were added to N2(g) + O2(g) 2NO(g) at equilibrium?

**chemistry**

A 75.0 sample of 1.50×10^−2 Na2SO4 is added to 75.0 mL of 1.26×10−2 Ca(NO3)2. What is the % Ca undissolved

**chemistry**

Write the standard cell notation for a galvanic cell with a silver cathode and a zinc anode.

**chemistry**

If one electrode in a galvanic cell is made of zinc (Zn) and one is made of silver (Ag), which metal would be the cathode and which would be the anode? Explain your answer.

**chemistry**

Think about the various processes that take place in the body or in the natural environment and come up with a list of at least fivethat you believe represent redox reactions. You don't need to include formulas. Jut substances names or provide a description of each process.

**Physics**

A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long distance event (a) What is the runner’s kinetic energy at this instant? (b) If he doubles his speed to reach the finish line, by what factor does his kinetic energy change?

**Science**

A 2400-pound car exerts its maximum force of 750 pounds. What will be its minimum time needed to slow it down from 50 m/s to 10 m/s? Determine how far will the car travel in that time.

**Psychology**

Is this the correct answer! When making the "fundamental attributional error," we tend to overestimate the importance of ____ in judging the behavior of others. I choose A a. internal causes b. situational factors c. external causes d. motivation

**Psycholofgy**

Please help me! I have been on this one question for some hours now and still don't if this is the correct answer. I choose A Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are ...

**Psycholofgy (Please Help)**

Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you are forced to. I choose C a. mere ...

**Psycholofgy**

Help is needed! Please help! Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you are forced ...

**Psycholofgy**

Help is needed! Please help! Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you are forced ...

**Psycholofgy**

Help is really needed! I need to know if this the correct answer. I choose B Your actions are most likely to agree with one of your attitudes when a. the actions reverse an old habit. b. the attitude is held with conviction. c. you know that others disagree with your position...

**Psycholofgy**

Can someone help me with this please! Is this the correct answer I have chosen? I choose C Jake finds guns attractive and desirable, while Arthur feels that guns are threatening and destructive. Their differing feelings toward guns represent the ______ component of their ...

**Psycholofgy**

Please help! Is this the correct answer! I said the answer is B Roles contribute to the streamlining of everyday interactions because they a. permit us to make fundamental attributions in social situations. b. allow us to anticipate the actions of others. c. frequently put us ...

**Psychology**

Help is needed! Please help! I said the answer is C Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior ...

**Psychology**

Help Please! Need to know if I'm the right track. If this the correct answer. I said the answer is C After Mrs. Keech's doomsday predictions failed, her followers suddenly became interested in convincing others they were right. This strong need to maintain consistency ...

**Psychology**

I need to know if this the correct answer The success or failure of attempted persuasion can usually be understood by considering the characteristics of the I said the answer is A a. communicator, group, and target behavior. b. communicator, message, and audience. c. messenger...

**Psychology**

Help is really needed! I need to know if this the correct answer. I choose C Your actions are most likely to agree with one of your attitudes when a. the actions reverse an old habit. b. the attitude is held with conviction. c. you know that others disagree with your position...

**Psycholofgy**

Help is needed badly! I have been on this one questions for the longest, so I'm trying to see if this the correct answer. I chose C If a person believes that his or her mind is being controlled by outside forces or that he or she is getting special coded messages from the ...

**Psychology**

Need help please! I need to know if this the correct answer. Please help! Regarding schizophrenia, which of the following statements is FALSE? I picked A a. Schizophrenia involves a "split personality," in which a person has two distinct personalities, one normal and...

**Psycholofgy**

Help Needed! I need to know if this the correct answer. Calvin has been on a "pleasure binge" for the last three days. He has cleaned out his bank account spending the money on anything that gains his attention. He would be described as loud, elated, and hyperactive...

**Psychology**

Help Please! I need to know if this the correct answer. I said the answer is C Which approach would explain that phobias are acquired through classical conditioning and the hypochondriac's "sickness behavior" is reinforced by sympathy and attention? a. ...

**Psychology**

Need to know if this the correct answer that I chose. Is the correct answer B Regarding personality disorders, which of the following statements is FALSE? a. Personality disorders are all maladaptive but vary in severity of impairment. b. Personality disorders typically emerge...

**Psychology**

Please help! I have read and read and still don't no for sure if this is the correct answer to this question. I picked A, but leaning more toward D Which approach would explain that phobias are acquired through classical conditioning and the hypochondriac's "...

**math**

a carpenter was putting up a shelf. the shelf needed to be 87 centimeters long but the piece of wood she had was 1 meter and 28 centimeters long. her saw was 46 cm long. how much did she have to cut off the piece of wood?

**Math**

Write the following argument symbolically and then determine its validity: 1. If you are fair-skinned, you will sunburn. 2. If you sunburn, you will not go to the dance. 3. If you do not go to the dance, your parents will want to know why you didn't go the dance. 4. ...

**Chemistry**

How much heat is necessary to change 5 grams of water at 10 degrees celcius to water at 70 degrees celcius?

**Algebra**

Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 30 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let T represent the number of minutes that ...

**biology**

explain how mitosis helps an organism to grow.

**american history**

madison, tenth

**Gegraphy 7**

Sorry Thank u

**Gegraphy 7**

Tank you

**Gegraphy 7**

Who has practised rice-fish farming?

**Math**

I need help with this problem. Jason's credit cards beginning unpaid balance for August is $2,000. During the August billing cycle he made a payment of $200 and used card to purchase $50 worth of groceries. Credit card charges 24% annual percentage rate and uses the unpaid...

**Math**

The morrison family bought a car for $22,000 which was financed at $600 per month for 40 months. The down payment was $3,000. What is the installment price? What is the financial charge and amount financed?

**math**

Divide 2,340 by 90. If its a whole number than its divisible. If it appears to be something like 24.675757 then its not divisible. This seems to be easy math.

**math**

oh. ok. thank u. Conversation above seems to be dragging on.

**chemistry**

HELP PLEASE... what is the chemical equation for these situations..? a) there is a straight iron nail in the solidified gelatin solution. the gelatin solution was prepared with phenolphthalein and K3Fe(CN)6. b) same scenario as with (a) but the nail is bent c) same with (a) ...

**chemistry**

what is the chemical equation for these situations..? a) there is a straight iron nail in the solidified gelatin solution. the gelatin solution was prepared with phenolphthalein and K3Fe(CN)6. b) same scenario as with (a) but the nail is bent c) same with (a) but the nail has ...

**english**

what?

**Math**

SOFIA HAS A PLATE THAT HAS 4 EQUAL SIDES, 2 PAIRS OF PARALLEL SIDES, AND NO RIGHT ANGLES. WHICH QUADRILATERAL IS IT?

**Math**

If a person rode 45 miles stopping at certain intervals in 9 times and if the intervals were equally apart. How far apart were they?

**chemistry**

Determine the chloride ion concentration in a solution containing 50.0 g MgCl2 dissolved in 1500 mL of solution. a. 0.350 M b. 0.700 M c. 1.40 M d. 3.17 M e. 6.34 M

**chemistry**

An aqueous solution of phosphoric acid, H3PO4, contains 285 g H3PO4 in 400 mL solution, and has a density of 1.35 g/mL. Calculate a. the weight % H3PO4 in this solution. b. the concentration in mol/L of this solution

**us history**

how did religion shape the development of colonial society in the Chesapeake?

**physics**

A 680 Hz tuning fork is held over a long vertical tube full of water. If the tube is 1.00 m long, how many resonances will be heard as the tube is allowed to empty from the bottom?

**Algebra**

I am havine trouble with this problem will someone please help me The perimeter of a rectangle is 68m The length is 10 m more than twice the width. Find the dimensions

**8th grade**

What were the massachusetts fighting for?

**help with math please**

a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the minimum cost

**health**

How do culture and health beliefs affect the spread of emerging disease? Can someone help me with specific examples?

**science**

V=180

**MATH**

HOW TO SOLVE Y=6X-11 AND -2X-3Y=-7

**8th grade**

HOW TO SOLVE FOR SUBSTITUTION

**SUBSTITUTION**

HOW TO SOLVE FOR Y=6-11 & -2X-3Y=-7

**SUBSTITUTION**

HOW TO SOLVE Y=6X-11 & -2X-3Y=-7

**geometry**

a pentagon

**math (geometry)**

what is the distance from the pitcher's box to second base if the distance from the pitcher's box to home plate is 18 meters and the distance between bases is 27 meters

**english**

Flattery is as important a machine as the lever, isn't it? Give it a proper place to rest, and it can move the world."

**7th grade**

uh I dunno

**math**

interpret an r value of -0.82. a)strong negative correlation B)weak negative correlation C)strong positive correlation D)no correlation

**9th grade**

10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?

**4th grade**

box. fix. fox. lax. hex. mix. nix. pox. sex. tax. vex. wax.

**physcal science/physics**

what is the kinetic energy in joules of a 1000 kg car travelling at 90km/h

**Math**

can you help me with this homework please

**finite math**

find the equation of the line 0.3,0.4 0.4,0.3 0.1,0.2 0.3,0.1

**math**

solve the equation by completing the square: x^2-9x-2=0

**math**

write the expression as a complex number in standard form 1+2i ----- 3-8i

**Math**

720