03/21/17

Joe is younger than his brother Moe. Moe is seven years older than Joe. Together they are 41. How much is each boy?
Joe is younger than his brother Moe. Moe is seven years older than Joe. Together they are 41. How much is each boy?
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03/21/17

If you have a beaker filled with ice and you want to see what happens to the ice when you add salt, the ice and salt would be classified as the...?
This question is about chemistry and deals with labs and materials and I'm not sure what the question is really asking. Independent or dependent maybe? Please help. Thank you!
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03/21/17

There are 64 males and 36 females in a band. What is the male band members ratio to total band members? And female band members to male band members?
There are 64 males and 36 females in a band. What is the male band members ratio to total band members? And female band members to male band members?
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03/21/17

The larger of two numbers is five more than the smaller the product of the numbers is 204 find the numbers
Can can you please help me!!! This is an algebraic math word problem 
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03/21/17

How many grams of calcium must react with sulfuric acid , H2SO4 , in order to produce 6.5 liters of hydrogen gas ?
Ca(s)  + H2SO4(aq) --> CaSO4(aq) + H2(g)
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03/21/17

How many liters of hydrogen gas are needed to react with 15 liters of nitrogen gas in the reaction forming ammonia, NH3?
How many liters of hydrogen gas are needed to react with 15 liters of nitrogen gas in the reaction forming ammonia, NH3? 3 H2 (g)  + N2(g) --> 2 NH3 (g)
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03/21/17

convert 400 grams of MgCl2 to moles
the only details I have are that you have 400 grams and you will need to convert that to moles
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03/21/17

Oxygen gas can be produced by decomposing potassium chlorate (KClO3) If 125g of KClO3 is heated, what mass of oxygen gas is produced?
2KCLO3(S) --> 2KCL(S) + 3 O2 (g)
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03/20/17

CH3CH2SO3H vs. CH3CH2SO2NH2
Which is better TLC or paper chromatography?
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03/20/17

how many tiles could be purchased for 500 dollars
 help me with math
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03/20/17

Percent Question
You purchase a house for $124000 and the next year sell it for $150000. What would be the percent of increase or decrease?
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03/20/17

when the particles of an object move faster, its thermal energy increases
Im trying to figure out if my question is true or false
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03/20/17

carpet to cover a floor of area 15m cost $110.how much would you expect to pay for a similar carpet measuring 5m by 4.2m
carpet to cover a floor of area 15m cost $110.how much would you expect to pay for a similar carpet measuring 5m by 4.2m
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03/20/17

Tom poured two white powders into a beaker and stirred them. The powers turned yellow as they were mixed.
Four students described what they thought had happened. who was correct?    Student.1)"nothing changed because the powders and still powders". Student.2)"A physical change occurred because the... more
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03/20/17

1+1+1+1+1+1+1+1+1+1+1*0+1
Math 
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03/20/17

There are 23 animals in the barn.Some are chickens and some are goats.There are 80 legs in all.How many of each animal is there?
 graphing
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03/20/17

How do you translate a problem into an equation ?
How do you write, Carla and Alyssa will share the $31 prize, into an equation ?
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03/20/17

Please help
How much heat does it take to increase the temperature of 1.45 L of water from 0 deg Celsius to 100 deg Celsius? Assume water has a density of 1 g/mL
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03/19/17

A student investigates the evaporation of water. He pours 100cm3 of water into measuring cylinder A and 100cm3 of water into measuring cylinder B. Measuring cyl
A student investigates the evaporation of water. He pours 100cm3 of water into measuring cylinder A and 100cm3 of water into measuring cylinder B. Measuring cylinder A is kept at 40°c and B is... more
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03/19/17

how many joules of heat are needed to change 50.0 grams of ice at 150°c to steam at 120°c?
1) how many joules of heat are needed to change 50.0 grams of ice at -15.0°C to steam at 120°C? 2) you have a sample of H20 with a mass 23.0 grams at a temperature of -46.0°C. How many... more
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03/19/17

thermal properties of matter (i need help)
1.) A beaker containing 0.250kg of water at 10°c has a 2.0kw heater immersed in it. Find the time needed to rurn the water completely to steam. 2) what is the amount of energy released when 5g... more
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03/19/17

If there is 28.0mL of 0.25M benzoic acid and 0.30 M of NaOH, determine the pH after 8.0mL of NaOH is added.
Please help!!
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03/19/17

732 is what percent of 4125
Convert to equation 
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03/19/17

In a nitrous acid-nitrite buffer, the pH is 2 pH units lower than pKa of the acid. If the concentration of nitrite is 0.45M, calculate the concentration of acid
Please help!
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03/18/17

-6y + 27 = 3y - 18
Algebra: Hi l haven't did algebra in decades someone please help  
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