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If you randomly take a positive integer and divide it by 23, what’s the probability that the remainder is 13?

You randomly draw 1 card from a standard deck of 52, and 1 card from another standard deck. What's the probability that the sum of the 2 cards is 7?

Dave has a coin. One side of it is a picture of a duck, and the other side of it is the maple leaf. For dinner tonight, he can’t decide whether he wants to have a burger or roast chicken, so he...

Thank You all for the help!
It is very much appreciated :D

Yeah I understand!!

At first I was confused but now I get it!
Thank You for the Help.

How could you convert these two questions? They look odd! It could be just me! HAHAH

450 meters  ____ nanometers

50,000mL  meters cubed

Use the balanced equation below: How many grams of molten iron can be produced if you have 100 grams of Iron Oxide and 200 grams of Aluminum?

2 Al(s) + Fe2O3(s)  ...

The answer that I got was: a) 6.3*10^-4
b) and the pOH is 11.18

A 0.057M HIO3 solution is 10.0% ionized.
What is the dissociation constant (ka) for HIO3? And what is the pOH of the solution?

A 5.0Kg stone is sinking in water at a constant speed of 5.0m/s what is the upward force of water on the stone?

A 1.1 *10^3 Kg car accelerates at 3.40m/s^2 . If the wheel exerts a force of 5.6*10^3N on the road, calculate the force resisting the motion?

A 1.2*10^3Kg car traveling at 50.0Km/h experiences a frictional force of 2.2*10^2N. If the wheels push while a force of 7.5*10^3N, what is the car's acceleration?

I made a mistake sorry, its suppose to be CO3-2 5.6 *10^-5=X^2 I forgot to be put space between Co3-2 so the final answer is 2.5*10 ^-5.

SrCO3(s) goes to equilibrium then Sr+2+ CO3-2
Ksp= conc of Sr+2 multiply by conc of CO3-25.6 *10^-5=X^2 then that equals to 2.5*10^-5=x

then For the second equation you do the same thing except...

which one of the following solutions will contain the greatest strontium ion concentration: strontium carbonate solution (Ksp=5.6*106-10) or strontium fluoride solution (Ksp= 4.3*106-9)

which one of the following solutions will contain the greatest strontium ion concentration: strontium carbonate solution (Ksp=5.6*106-10) or strontium fluoride solution (Ksp= 4.3*106-9)

A tennis ball of mass m=0.060Kg and speed v= 25m/s strikes a wall at a 45 degrees angle and rebounds with the same speed at 45 degrees angle. What is the impulse given the wall?

A 13-g bullet traveling 230m/s penetrates a 2.0Kg block of wood and emerges going 170m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

When diluting acid, always add amount of acids to large amounts of water. Name one reason why we have this rule? :)

How to convert 5Kmol/m^3 into mole/L?

A 6.0 kg object, A, moving at velocity 3.0 m/s, collides with a 6.0 kg object, B, at rest. After the collision, A moves off in a direction 40.0o to the left of its original direction. B moves off in...

Modern lasers can create a pulse of light that lasts only a few femtoseconds. (1 fs = 1 x 10-15 s).
What is the length of a pulse of light that lasts 6.0 fs?