Mandy asks…How do you distinguish an actual achievable dream from a childish one?Like people that are teenagers that want to become famous singers,musicians etc
or children/teens that really want act or model
dreams like these
how can you know that these aren't just silly childish dreams and not something more serious?
just asking because i have so many thoughts buzzing in my head and i wonder if i could actually make a dream i have come true and its not just some childish fantasy.Nancy
Saturday, June 30, 2012
Surfing For Agcl Is Soluble?
Helen asks…Which is more soluble, AgCl or Ag2CO3?Ksp for AgCl is 2 x 10^(-10)
Ksp for Ag2CO3 is 8 x 10^(-12)
Would is be AgCl just because its Ksp is greater than that of Ag2CO3's?Nancy answers:Ksp is a measurement of the solubility of a substance.
Like K values of weak acids/bases, the higher the K value, the more dissociation occurs in solution.
Your more soluble substance will be the one with the higher Ksp value.
In this case, AgCl is more soluble than Ag2CO3 because KspAgCl >
Ksp for Ag2CO3 is 8 x 10^(-12)
Would is be AgCl just because its Ksp is greater than that of Ag2CO3's?Nancy answers:Ksp is a measurement of the solubility of a substance.
Like K values of weak acids/bases, the higher the K value, the more dissociation occurs in solution.
Your more soluble substance will be the one with the higher Ksp value.
In this case, AgCl is more soluble than Ag2CO3 because KspAgCl >
Surfing For To Lift Weights In French?
Laura asks…Am I losing weight, staying neutral, or gaining?Hello everyone and thanks for taking the time to read this post.
I am 16 years old and have battled with my weight for some time. I am down to about 147-150 from 180lbs, and I still want to lose more. I am mostly concentrating on my sides (love handle area).
I generally eat healthfully during the week. At school for lunch I like to balance out and have a salad most days, with apple slices to go along with it. Every once in a while
I am 16 years old and have battled with my weight for some time. I am down to about 147-150 from 180lbs, and I still want to lose more. I am mostly concentrating on my sides (love handle area).
I generally eat healthfully during the week. At school for lunch I like to balance out and have a salad most days, with apple slices to go along with it. Every once in a while
Friday, June 29, 2012
Surfing For How Many Liters Of A 30 Alcohol Solution?
Thomas asks…Please help with linear equations?A chemist wants to get 200L of 37% of alcohol solution by volume by mixing 40% alcohol solution with 30% alcohol solution. How many liters of each should be used?
I don't understand...what do they mean "by volume" ? And why are there so many different percentages of solutions? HELP!!!Nancy answers:By volume just means the percentage is calculated by mL /100 mL instead of by weight, where it would be calculated by grams/100mL.
So the question is,
I don't understand...what do they mean "by volume" ? And why are there so many different percentages of solutions? HELP!!!Nancy answers:By volume just means the percentage is calculated by mL /100 mL instead of by weight, where it would be calculated by grams/100mL.
So the question is,
Surfing For A Car Moving At 50 Km H?
Carol asks…HELP WITH SCIENCE PLEASE !?(:?-1. A bird flew 16 km west in 5 hours, then flew 20 km east in 6 hours. What was the bird’s velocity?
a. 3.2 km/h
b. 11 m/s west; 14 m/s east
c. 2.1 km/h west; 2.6 km/h east
d. 3.2 km/h west; 3.3 km/h east
-2. Alicia wanted to pull out a particular issue from a pile of magazines. First, she tried pulling slowly, and the whole pile began to move. Then she tried pulling quickly, and the issue she wanted came out without the pile
a. 3.2 km/h
b. 11 m/s west; 14 m/s east
c. 2.1 km/h west; 2.6 km/h east
d. 3.2 km/h west; 3.3 km/h east
-2. Alicia wanted to pull out a particular issue from a pile of magazines. First, she tried pulling slowly, and the whole pile began to move. Then she tried pulling quickly, and the issue she wanted came out without the pile
Surfing For How Many Liters Of Air Are In A Room?
Donald asks…Co2 enrichment question for plants. - Math anyone?184 cubic feet of total space.
Average human exhales half a liter of air with each breath. 'Average' air is only .03% CO2 while a breath increases that to 4%. Meaning each breath is ~40,000 ppm of CO2. Now... if 1 cubic foot is ~27 liters and I was to take only 10 breaths per minute (10 in 10 out) then how many ppm will the space increase if I was to sit in it for 20 minutes?
To make it easier I guess you could assume there is
Average human exhales half a liter of air with each breath. 'Average' air is only .03% CO2 while a breath increases that to 4%. Meaning each breath is ~40,000 ppm of CO2. Now... if 1 cubic foot is ~27 liters and I was to take only 10 breaths per minute (10 in 10 out) then how many ppm will the space increase if I was to sit in it for 20 minutes?
To make it easier I guess you could assume there is
Thursday, June 28, 2012
Surfing For How Many Grams Of Iron Do You Need A Day?
Jenny asks…Increase Iron intake in foods? ?i've always been tired/exhausted at school. i did some reasearch and it said that Iron could be the problem, and surely enouth i hardly get any iron.
it's probably because i am very weird baout what i eat. i can't eat any type of meat unless it's chicken or pork. i can't eat vegetables that are bigger then the palm of my hand nad i don't like most normal foods.
what are some foods that are common htat a teen can eat to increase iron?
how much
it's probably because i am very weird baout what i eat. i can't eat any type of meat unless it's chicken or pork. i can't eat vegetables that are bigger then the palm of my hand nad i don't like most normal foods.
what are some foods that are common htat a teen can eat to increase iron?
how much
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