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luke

Questions (151)

A sample of hydrogen gas occupies 16.8 L at STP. How many moles of the gas are present?Answer in units of mol
1. 1 answer
2. 952 views
Determine the mass of 7.79 ×1023 atoms Cl.Answer in units of g
1. 1 answer
2. 805 views
How many molecules are in 12.2 g NO2?Answer in units of molec
1. 3 answers
2. 1,279 views
What happens to the concentration ofSO2(g) when the total pressure on the equilibrium reaction 2 SO2(g) + O2(g) <---> 2 SO3(g)
1. 3 answers
2. 1,674 views
Consider the reaction at equilibrium:2NO2(g) <---> N2O2(g) + O2(g) for which, H = −20.4 kJ · mol−1. If you decrease the
1. 4 answers
2. 705 views
Consider the combustion of glucose:C6H12O6(s) + 6O2(g) <---> 6CO2(g) + 6H2O(g) H = −3 kJ/mol Which condition I) Adding more
1. 3 answers
2. 951 views
What happens to the concentration ofNO(g) when the total pressure on the equilibrium reaction 3NO2(g) + H2O <---> 2HNO3(aq) +
1. 2 answers
2. 701 views
Critical thinking: alien tour guide
1. 1 answer
2. 506 views
One of your aliens looks down and becomes very confused, so you tell him that there is a game going on
1. 1 answer
2. 298 views
FeSO4 (aq) + Ba(OH)2 (aq) = BaSO4 (s) + Fe(OH)2 (s)2Fe3+(aq) + 3SO4=(aq) + 3Ba2+(aq) + 6OH-(aq) ===> 2Fe(OH)3(s) + 3BaSO4(s)
1. 1 answer
2. 911 views
Aqueous solutions of iron (III) sulphate and barium hydroxide are combined. Does a precipitate form? If yes write a net ionic
1. 1 answer
2. 1,923 views
A pulley system is 76% efficient. If a 9000 kg box is lifted a distance of 8 m by a force of 700 N, how much rope is pulled from
1. 0 answers
2. 449 views
what is the correct order from least to greatest: 3/8,0.23, 35%
1. 2 answers
2. 495 views
please help i cannot figure this outA 0.27 kg ball of dough is thrown straight up into the air with an initial velocity of 12
1. 0 answers
2. 581 views
what accounting principle would changing methods every year violate?
1. 0 answers
2. 498 views
True or false: dimensions for Q can be, for example, cubic feet per minute, being distinguished from units for Q, which are
1. 1 answer
2. 400 views
if a ball, fired as a projectile, travels 30 meters when it leaves the the ground at 20% angel, it will travel the same distance
1. 1 answer
2. 757 views
if a ball, fired as a projectile, travels 30 meters when it leaves the the ground at 20% angel, it will travel the same distance
1. 1 answer
2. 483 views
A shell fired from the ground with an initial speed of 1.70 x 10^3 m/s at an initial angle of 55 degrees to the horizontal.
1. 3 answers
2. 1,530 views
A spy in a speed boat is being chased down a river by government officials in a faster craft. just as the officials' boat pulls
1. 3 answers
2. 1,285 views
what is the vertex and axis of symmetryy=2x^2 - 7x + 1
1. 1 answer
2. 825 views
How do find the speed of a marble after falling from rest a distance of 1.2 m?
1. 0 answers
2. 1,051 views
the points are (2.1, -6.3) (-2.5, 4.7)y=mx+b find what m= and what b = i got m=-2.39 but the I tried to plug the coordinates
1. 1 answer
2. 334 views
the points are (2.1, -6.3) (-2.5, 4.7)y=mx+b find what m= and what b =
1. 2 answers
2. 336 views
Assume that the weight loss for the first two months of a diet program has a uniform distribution over the interval 6 to 12
1. 1 answer
2. 991 views
what are the changes to n02 levels in one day
1. 1 answer
2. 360 views
Consider a frictionless track as shown in Figure P6.48. A block of mass m1 = 4.30 kg is released from A. It makes a head on
1. 1 answer
2. 847 views
i need to do a poster to advertise a 'new' mobile phone it needs to stand out to the people who see it
1. 1 answer
2. 487 views
How do you say the restaurant is located inside the hotel. れすとらんはほてるのなかです
1. 2 answers
2. 450 views
A firm has production of cars in 2 countries with the following demand:Sweden: P= 300- 5Q Denmark: P= 150- 3Q Marginal cost for
1. 0 answers
2. 1,087 views
which metal does not require having its charge specified in the names of ionic comppounds it forms?a. Au b. Ca c. Cu d. Cr e. Fe
1. 1 answer
2. 544 views
PLease look down. Thank you.
1. 1 answer
2. 275 views
Write the correct conjugation of tener for the following sentences:9. ¿Por qué _________ (Jose) sueño por la mañana? 10. Mi
1. 1 answer
2. 743 views
Latitude lines measure distance in degrees north and south of this?is it equator?
1. 3 answers
2. 764 views
a remote controlled car's wheel accelerates at 22.4 rad/s^2. if the wheel begins with an angular speed of 10.8 rad/s what is the
1. 1 answer
2. 5,254 views
the rainfall this year was 18.6 cm. this is 3.2 cm less than half of the rainfall last year. what was the rainfall last year?
1. 3 answers
2. 1,047 views
consider the following function:f(x)=sqrt(50-x) find the linear approximation of f(x) at a=1
1. 1 answer
2. 460 views
a metal sample weighing 45.0g and at a temperature of 99.1C was place in 38.6g of water in a calorimeter at 25.0C. the
1. 2 answers
2. 1,460 views
The force of ..... acts to transfer mechanical energy to thermal energy.
1. 3 answers
2. 483 views
can you give me more info for 9/11 (patriot day)?
1. 4 answers
2. 395 views
for part 2 of the questions is it six $1.00 stamps + one $2.50 + one $1.20 and four $4.00and how do i find the largest number of
1. 1 answer
2. 473 views
in a series of stamps annie must buy six of eachone cost $4.00 one cost $2.50 one cost $1.20 one cost $1.00 she had to post a
1. 2 answers
2. 830 views
hi how would we solve a question like this?for the curve with eq'n 2x^2 - x - 1 y= _______________ x^2 - 2x - 3 determina all x-
1. 1 answer
2. 396 views
I have no clue how to do this as no values were given and im confused. can someone explain plz?if x^3-y^3=m and x-y=N, express
1. 0 answers
2. 488 views
hi i was reading through the tutorials and havent really understood how to factor out a trinomial like12x^4 - 5x^2y^2 - 2y^4
1. 0 answers
2. 416 views
I'm not good at math! I need help with finding a decimal from a fraction.like 1/3, 13/15, 19/32 I can't figure out how to turn
1. 0 answers
2. 971 views
A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical
1. 0 answers
2. 876 views
A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical
1. 0 answers
2. 1,179 views
A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical
1. 0 answers
2. 960 views
what does coefficients in equations mean, in chemical terms?2NaCl means we have two molecules or 2 mols of NaCl. Most texts
1. 0 answers
2. 572 views
what is the relationship between ka and kb?Kw=ka*kb
1. 0 answers
2. 370 views

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