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July 9, 2017
Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction:
2H2O2(l) → 2H2O(l) + O2(g) ΔH
2 answers
asked by
Karla
5,440 views
An open (hollow) cylindrical barrel has a base radius 14 cm and a height of 33cm
A) find the volume and the surface area of the
2 answers
asked by
Neelam
4,136 views
each letter of the alphabet is placed in a bag. One letter is drawn and not replaced. If three letters are drawn without
5 answers
asked by
deklan
3,992 views
We have been thought that BaC2O4 is a precipitate when dissolved in H2O.
When comparing its solubilty in water and in an aqueous
2 answers
asked by
Shenaya
2,664 views
i have two piece of ribbon one is 17.5cm longer than the other and 1/3 of one ribbon is the same as 3/4 of the other what is the
3 answers
asked by
jane
2,417 views
Robin Hood has to shoot an arrow at an apple that sits on a wall 400 meters away, at a height of 40 meters. He must shoot at an
1 answer
asked by
unowen
2,367 views
A 140 kg stationary crate is pulled by a force of 390 N along a horizontal surface.
a) The coefficient of static friction between
1 answer
asked by
Rose
2,036 views
One seat in an auditorium is broken. It is in the 3rd row from the front of the auditorium and in the 18th row from the back of
4 answers
asked by
Calvin
1,814 views
Encircle the greatest number in each set?
(a) 41309,14903,19403,20403
3 answers
asked by
Ravi Yadav
1,548 views
Hydrogen gas (H2) is generated by the following reaction.
Ca(s) + 2 HCl(aq) → CaCl2(aq) + H2(g); ΔH = −542.7 kJ/mol When
1 answer
asked by
Jamie
1,208 views
A 6.0 kg mass is pulled horizontally along a level surface where the coefficient of friction is
0.20. The mass accelerates at
1 answer
asked by
Rose
1,192 views
Isosceles triangle ABE of area 100 square inches is cut by CD into an isosceles trapezoid and a smaller isosceles triangle. The
1 answer
asked by
Curtis
1,186 views
A bullet of mass 6.45 g is fired from a 66.0 cm-long rifle barrel at 237 m/s. The mass of the
rifle is 4.50 kg. Determine the
1 answer
asked by
Rose
1,181 views
A student pushes horizontally on a textbook of
mass 0.250 kg and holds it stationary against the classroom wall. a) Draw a free
0 answers
asked by
Rose
1,142 views
A Cylinder oil tank is 1/3 full. if 3 more gallons are added the tank will half full. What is the capacity of tank?
2 answers
asked by
Ishaq
982 views
Write the complete ionic equation for the reaction of magnesium phosphate with lead (II) nitrate. Include which ions will be
1 answer
asked by
Brian
828 views
Robin Hood has to shoot an arrow at an apple that sits on a wall 400 meters away, at a height of 40 meters. He must shoot at an
2 answers
asked by
unowen
795 views
Good morning, I wanted to see if someone could help me with the following questions because I am not too sure.
Examining groups
2 answers
asked by
Lencho
791 views
Good morning, I wanted to see if someone could help me with the following questions because I am not too sure.
Examining groups
1 answer
asked by
Lencho
722 views
Find the least and greatest possible original numbers:
ROUNDED PLACE is Thousands, ROUNDED NUMBER is 1,800. What is the Least
1 answer
asked by
Jessie
719 views
A stone is thrown horizontally from the top of a building with a speed of 29.5 m/sec. It lands 56.3 meters from the base of the
1 answer
asked by
janei
702 views
Adam answered 80% of the questions correctly. He answered 6 questions wrongly. Find the total number of questions in the quiz
1 answer
asked by
Anonymous
685 views
If an object of dimension 40cm×30cm×10cm is floating on a liquid of density 1g/cc.What height of the object will be exposed
2 answers
asked by
Ashim
678 views
Mel collects baseball cards. He wants 7 of each of his 13 favorite players. he now has a total of 87 cards. How many additional
1 answer
asked by
Cons
560 views
A kid places a toy on the outermost edge of a merry go round. The amusement park ride has a radius R and period T. What is the
1 answer
asked by
riley
553 views
Altogether, Haille's dog statue collection weighs 20 pounds. One statue weighs 8 pounds and the rest each weigh half as much.
2 answers
asked by
Cons
553 views
1.00g of oxygen combine with 0.126 g of hydrogen to form H2O. 1.00 g of nitrogen combie with 0.216 g of hydrogen to form
0 answers
asked by
RAJESH
522 views
A car of mass 1000 kg moving with the velocity of 40 kg per hour collide with a tree and comes to stop in five seconds.calculate
1 answer
asked by
samradnyee
518 views
A driver A travelling at 54km/hr and stops the car in 4sec.another car B travelling at36km/hr and stops the car in 6sec.Plot
1 answer
asked by
Krishna
503 views
A ball rolls off the edge of a level tabletop. It travels 36.5 cm horizontally and falls a vertical distance of 81.9 cm. What is
1 answer
asked by
yuri
490 views
A plane is in a steep downward plunge. To not crash, captain Q pulls as much as he can. When the plane is at the lowest point of
0 answers
asked by
riley
482 views
Can you help me find the first and second derviative for xsquare root 4-x^2. FOr the first one I got -2x^2-4/square root 4-x^2.
1 answer
asked by
denice
468 views
A few children are playing around the carousel at the park. You see that one of them can't hold on to the edge of the carousel (
1 answer
asked by
riley
463 views
Fiona's dog is 4 times as long as Rod's dog. End to end, they are 60 inches long. How long is Fiona's dog?
1 answer
asked by
Cons
451 views
y^4+16y^2-15=0
2 answers
asked by
Pradumn
410 views
Find the rule for these ordered pair: (1,4) (2,6) (3,9) and (4,13)
1 answer
asked by
Fred
399 views
The table below the C-14 Decay curve and the Correction curves contains the % Modern values for 4 samples.
0 answers
asked by
Anonymous
393 views
How many different outcomes could there be when rolling three 6 sided dice ?
1 answer
asked by
Tim
385 views
do triangle in elliptic geometry have inscribed cycles ?
1 answer
asked by
gerges
384 views
at what poins in its path projectile has minimum and maximum speeds
1 answer
asked by
areej
337 views
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