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Morgan

Questions (558)

On the Moon, the acceleration due to gravity is 1.62 m/s2. How far would a 13 g rock fall from rest in 5.5 seconds if the only
1. 1 answer
2. 1,401 views
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.11 m/s. The stone
1. 1 answer
2. 686 views
2 down another name for mississippians
1. 1 answer
2. 540 views
For the following reaction, how many kJ of heat are produceed in forming 225.0 g of NO?4 NH3 + 5 O2 → 4 NO + 6 H2O ΔHrxn =
1. 1 answer
2. 379 views
1. Not all resolutions need presidential approval, as do bills becoming laws.True False I think the answer is true because there
1. 3 answers
2. 795 views
Will an object accelerate if the forces are balanced? Why or why not?I know that the answer is that it will not accelerate but
1. 1 answer
2. 447 views
A 15kg object takes 26.3 meters to stop because of friction. Assume no skidding. If the frictional force is 60 N, what is the
1. 1 answer
2. 515 views
A force of 32.3 N is applied to a 5.87 N box resting on a table. If friction acts with a force of 2.11 N, what is the
1. 1 answer
2. 397 views
What mass of solid magnesium hydroxide is needed to neutralize .385 L of 2.5 M nitric acid?
1. 2 answers
2. 459 views
What is the concentration of 127 mL of solution made with .450 g of nickel (II) nitrate hexahydrate?
1. 1 answer
2. 337 views
Select the correct verb tense used in the sentences belowThat company has been making surfboards since the 1960's present
1. 8 answers
2. 5,586 views
Choose the correct tense of the underlined verbEveryone in the climbing expedition /developed/ frostbite from their exposure to
1. 5 answers
2. 2,753 views
Choose the past form or the past participle for the underlined verbWe /sell/ dozens of magazine subscriptions last week sold***
1. 6 answers
2. 2,621 views
haley drew a scale drawing of a city. A neighborhood Park, which is 70 yards wide in the real life, is 175 inches wide in the
1. 1 answer
2. 618 views
is 2/3 larger than 4/7
1. 2 answers
2. 341 views
Suppose that a company guarantees refrigerators and will replace with a new one that breaks while it is under the guarantee.
1. 2 answers
2. 556 views
Suppose that a company guarantees refrigerators and will replace with a new one that breaks while it is under the guarantee.
1. 0 answers
2. 544 views
Freshwater (𝜌 = 1,020 kg/m3) is flowing in a horizontal pipe whose cross section widens from 9.0 cm2 to 13.0 cm2. The water
1. 0 answers
2. 639 views
5. Prove: Tan beta sin beta + cos beta = sec beta6. Prove: ( tan y cos^2 y + sin^2 y)/ (sin y) = cos y+sin y 7. Prove (1+tan
1. 1 answer
2. 514 views
5. Prove: Tan beta sin beta + cos beta = sec beta6. Prove: ( tan y cos^2 y + sin^2 y)/ (sin y) = cos y+sin y 7. Prove (1+tan
1. 1 answer
2. 593 views
Russell is arguing that philosophy is valuable. You'll want to think about his argument using his own key ideas:•How does he
1. 2 answers
2. 3,802 views
Order the numbers from least to greatest.0.21, 1/5, 0.18, 24% a. 0.21, 1/5, 0.18, 24% b. 24%, 0.21, 1/5, 0.18 c. 0.18, 1/5,
1. 16 answers
2. 6,046 views
A buffer solution contains 0.052 M HC2H3O2 and 0.025 M NaC2H3O2. The pH of this solution is _____. Ka for HC2H3O2 is 1.8x10-5.
1. 2 answers
2. 3,822 views
One number is 58 more than twice another. Their product is 58 more than twice their sum. Find the numbers.
1. 1 answer
2. 479 views
what is the social position of a merchant in both Christian and Islamic worlds.
1. 1 answer
2. 414 views
We observe a sample proprotion p-hat = 0.3. If the standard deviation of the sampling distribution of p-hat is 0.04, what is the
1. 1 answer
2. 856 views
Assume that 268mL of 5.00M NaOH are diluted to a final volume of 574mL with water. What is the final molarity of NaOH (FM=40.0).
1. 1 answer
2. 767 views
A runner and a walker depart from the same point going in opposite directions on a circular track that is 1 mile long. The
1. 2 answers
2. 586 views
A runner and a walker depart from the same point going in opposite directions on a circular track that is 1 mile long. The
1. 2 answers
2. 485 views
Mr Snyder is tiling a floor. The floor is 16 tiles long and 9 tiles wide. The center section is 12x long and 5 tiles wide. How
1. 1 answer
2. 603 views
Can someone please help me answer this questionHistorians traditionally date the end of the Roman Empire to 476 AD. Why is this?
1. 2 answers
2. 572 views
Can someone please help me found out the answer to this question.Discuss the relationship between inequality and war from the
1. 1 answer
2. 521 views
The strontium-87 isotopes stores in the body and decays by the process shown below. The half-life is 2.80hr. Suppose that 0.766
1. 2 answers
2. 555 views
The strontium-90 isotope decays by the reaction below. It has a half-life of 28 yr. If the initial activity of this isotope was
1. 1 answer
2. 669 views
In jims,5 times as many students take the bus as those who walk. A total of 24 students walk or take the bus. How many more
1. 2 answers
2. 611 views
How do I write the correct dissolution reaction for BaCl2
1. 1 answer
2. 674 views
Which of the following shows the correct dissolution reaction for BaCl2?
1. 1 answer
2. 1,368 views
determine the molarity of a solution of silver nitrate prepared by dissolving 5g of silver nitrate in 25.0mL of water
1. 1 answer
2. 592 views
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a$14 monthly fee
1. 2 answers
2. 1,833 views
32% of a particular radioactive substance disappears in 227 years.Part 1: Find the decay constant. Your answer must be correct
1. 1 answer
2. 510 views
Does pi cancel when I add 48ƒÎ�ã2 + 36ƒÎ ?
1. 1 answer
2. 400 views
This is my last question and this one really threw me for a loop. I know that the temp has to be converted to kelvin which would
1. 2 answers
2. 481 views
This is due online in 20 minutes and I've been working on it for 3 hours. Im lost on what to do with this question. Please helpH
1. 1 answer
2. 583 views
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water.3NO2(g) + H2O(§¤) −> 2HNO3(§¤) + NO(g)
1. 4 answers
2. 5,403 views
What is the volume of 0.100 g of C2H2F4vapor at 1.09 atm and 43.9◦C? Answer in units of L
1. 5 answers
2. 980 views
Calculate the pH of the resulting solution if 50 cm3 of 0.045mol dm-3 solution of C5H5N is mixed with 100 cm3 of 0.035 mol dm-3
1. 1 answer
2. 509 views
Calculate the pH of the resulting solution if 50 cm3 of 0.045mol dm-3 solution of C5H5N is mixed with 100 cm3 of 0.035 mol dm-3
1. 1 answer
2. 553 views
Determine whether this sequence is arithmetic or geometric. Find the next three terms.4. 3, 12, 21, 30, .... A.40, 50, 60 B.38,
1. 10 answers
2. 674 views
Determine whether this sequence is arithmetic or geometric. Find the next three terms.81, 27, 9, 3, . . . A. arithmetic, 0,
1. 5 answers
2. 1,337 views
Determine whether each sequence is arithmetic or geometric. Find the next three terms.-4,8,-16,32... A. Arithmetic, 64,128,256
1. 4 answers
2. 642 views
Determine whether each sequence is arithmetic of geometric. Find the next three terms.14,19,24,29.... A. Geometric,34,39,44 B.
1. 3 answers
2. 849 views
State whether the following numbers make a right triangle and a Pythagorean triple:2, 2 root 2, and 2 root 3 I am pretty sure
1. 1 answer
2. 552 views
Even in Hollywood, there was a “blacklist” of entertainment figures that should not be hired because they were suspect for
1. 3 answers
2. 434 views
What is the strongest intermolecular force that occurs between carbon dioxide molecules?A. London dispersion forces B. Hydrogen
1. 2 answers
2. 3,640 views
The reason that nonpolar oil will not dissolve in polar water is that the attractive forces between:A. the oil molecules are
1. 2 answers
2. 3,047 views
a) Describe how to determine if a reaction will be thermodynamically favorable.b) Describe what happens to the Gibbs Free Energy
1. 5 answers
2. 3,239 views
Explain how the geometry affects the ability of the molecules to experience a dipole affect. One molecule is a trigonal
1. 1 answer
2. 751 views
what is the VSEPR of NF4+
1. 1 answer
2. 2,265 views
In 3-4 sentences, identify how the geometric structure of NF3 is different than that of NF4+. Explain how the geometry affects
1. 1 answer
2. 937 views
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.53 x 104 m/s, and the radius of the
1. 1 answer
2. 582 views
a) A current of 1.50 Amperes passes through a solution of AgNO3 for 3.0 hours. What mass, in grams, of silver collects on the
1. 1 answer
2. 2,219 views
1. Many types of spectrophotometers produce graphs containing a base line with peaks. How are the peaks seen on the graphs
1. 0 answers
2. 600 views
Calculate the heat of reaction (ΔHrxn) for the following reactions, using heats of formation (ΔHf). Show your work. Refer to a
1. 1 answer
2. 1,338 views
To interpret and compare heats of reaction (Hrxn), standard states must be used. What are the standard states for a gas, an
1. 2 answers
2. 799 views
1. Outline how you would use a calorimeter to determine the enthalpy of fusion of ice.2. Suppose the enthalpy of fusion of ice
1. 0 answers
2. 582 views
A fighter pilot is exposed to an acceleration of 3g in the horizontal direction during takeoff. Knowing that 1g=9.8 m/s2 and
1. 2 answers
2. 3,515 views
HCl is a gas at room temperature and does not conduct electricity. Yet when dissolved in water, the solution becomes an
1. 1 answer
2. 1,507 views
I ned these classified as metallic, ionic, molecular or covalent network and two reasons why.Aluminum Ascorbic acid Graphite
1. 0 answers
2. 670 views
Are acids like ascorbic acid and palmitic acid ionic, molecular, or covalent network compounds
1. 1 answer
2. 1,725 views
Lets say you melted palmitic acid, paraffin, and sucrose. While they be good conductors, poor conductors, or will they not be
1. 1 answer
2. 2,743 views
In general, do transition metals or main group elements tend to have higher melting points? According to a article, the FeCoNi
1. 1 answer
2. 1,067 views
I have questions but I don't understand this passage. Could you give a summery? Here are the question1. One problem the
1. 0 answers
2. 745 views
The balanced net ionic equation resulting from addition of aqueous hydrochloric acid to solid chromium(III) hydroxide is:A.
1. 2 answers
2. 2,742 views
Describe how to prepare 1 L of a 0.5 M solution of cobalt chloride hexahydrate (CoCl2 6H2O). Be sure to identify the labware
1. 1 answer
2. 3,574 views
Use this reaction for this question:4NH3 (g) + 2O2 (g) 4NO (g) + 6H2 (g); H = -905 J. Which statement is true about the reaction
1. 1 answer
2. 2,305 views
A particular photon has a wavelength of approximately 2 x 10-7m. What is the energy, in joules, associated with this photon?A.
1. 5 answers
2. 2,177 views
Given the following information about electronegativity, which binary compound would form covelant bonds with the greatest
1. 3 answers
2. 3,443 views
Suppose a galvanic cell contains one nickel electrode and one copper electrode. At 25°C, nickel has a negative reduction
1. 2 answers
2. 1,476 views
Given the following information about electronegativity, which binary compound would form covelant bonds with the greatest
1. 2 answers
2. 716 views
If BH3 formed the trigonal planar molecule shown in the image below, which statement would best describe BH3?A. Boron does not
1. 2 answers
2. 2,477 views
You want to determine the heat of reaction when a sodium chloride solution is formed using a 10.0 g sample of NaCl(s) and 50.0
1. 5 answers
2. 2,739 views
Why is there a decrease in electron affinity going from lithium to sodium?A. There is a stronger nuclear charge, with no
1. 3 answers
2. 2,893 views
Calculate the change in enthalpy produced by dissolving 14.3 g of NaOH in 65.0 g of water if the temperature increases 49.1°C
1. 1 answer
2. 1,374 views
I need to make an Orbital diagram for Li2O. Could you help me find a helpful website or something?
1. 2 answers
2. 1,447 views
How can Coulomb's law explain the distribution of electrons.
1. 0 answers
2. 494 views
lets say you have an F atom and an Ne+ ion. Which is more stable
1. 0 answers
2. 508 views
A bullet with a velocity of 200 m/s is shot at a 2-kg block resting on a horizontal frictionless surface. The bullet imbeds in
1. 0 answers
2. 826 views
A 1000 kg car moving at 27 m/s from left to right collides head-on with a 1500 kg car moving at 30 m/s right to left.A)
1. 0 answers
2. 751 views
2. Create a visual representation of ionic substances to connect the microscopic structure of ionic substances to each of the
1. 7 answers
2. 1,728 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 1 answer
2. 665 views
2. Create a visual representation of ionic substances to connect the microscopic structure of ionic substances to each of the
1. 0 answers
2. 895 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 0 answers
2. 711 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 0 answers
2. 625 views
1. Write the electron configuration for each atom or ion. Then explain the distribution of electrons among energy levels.Ca,
1. 1 answer
2. 1,562 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 0 answers
2. 743 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 7 answers
2. 3,015 views
2C2H2(g) + 5O2(g)→4CO2(g) + 2H2O(g)a. Determine the enthalpy change for the reaction. ΔH = (4(-393.5)+ 2(-241.8)) – (2(227)
1. 4 answers
2. 22,442 views
Answer the following questions about energy changes associated with heating and cooling a substance. Use the quantities in the
1. 8 answers
2. 2,928 views
The figure shows a cube of air at pressure 1.0 atm above a hot surface on Earth. Contact with the hot surface causes the volume
1. 3 answers
2. 3,219 views
I am having some chemistry problems.3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
1. 0 answers
2. 646 views

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