joecool148192

I don't understand how to balance equations. I have this equation: PbSO4=PbSO3+______O2. (The equal sign on my paper is an arrow). Can you show me not only the solution but how to do this?

What is the main idea of Evangelina Vigil Pinon's poem, Warm Heart Contains Life?

warm heart contains life

heart’s warmth

which penetrates through pen

lifeblood that reveals inner thoughts

subtly

like rustling leaves would secrets

to the winter wind

secrets collected

pressed between pages

to be kissed by lips red

protruding with warmth, desire

sometimes hurt, pain:

recuerdos

like that autumn leaf you singled out

and saved

pressed in-between the memories of your mind

diary never written

but always remembered, felt

scripted en tu mente

your daughters will never read it

but they’ll inherit it

and they’ll know it

when they look into your eyes

shining luz de amor, corazon

unspoken, untold

keepsake for our treasure chests

que cargamos aqui adentro

radiant with jewels

sculpted by sentimientos y penas

y bastante amor:

intuition tells us

better having lived through pain

than never having felt

life’s full intensity

Emily rows six miles downstream in 1 hour and her friend Ashley, rowing 1 mile per hour faster, completes the return trip in 2 hours.

Find the speed of the current (c) and each girl's rowing speed.

Then,

If Emily and Ashley were rowing separately, who would complete their trip first and by how long? Round to the nearest hundredth, if necessary.

Madison is making a vinaigrette for her catering service using olive oil that costs .40 cents per ounce and apple cider vinegar that costs .25 cents an ounce. The ideal batch of vinaigrette has 25% vinegar. If she has already combined 3 cups of vinegar and 1 cup of oil, how many cups of oil should she add? What is the total cost of her completed recipe?

DNA serves as the template to initiate protein synthesis. What is directly formed from this template?

1. Protein

2. mRNA

3. tRNA

4. ATP

5. Amino Acids

There are many ways to produce crooked dice. To load a die so that 6 comes up too often and 1 (which is opposite of 6) comes up too seldom, add a bit of lead to the filling of the spot on the 1 face. If a die is loaded so that 6 comes up with probability of 0.2 and the probabilities of the 2,3,4, and 5 faces are not affected, what is the assignment of probabilities to the six faces?

I have a diagram of a cell. It has 10% Na+ on the outside of the cell. I do not know how much sodium is on the inside so there's no way of telling if it's hypertonic, hypotonic, or isotonic. The question I have is what will happen if the cell is placed in a 50% salt solution?

People who have mutations in genes that encode proteins that participate in DNA formation in mitochondria are never seen. Why might this be?

In regards to the developmental stages of childhood, what culture does not have an adolescent stage?

l-2x + 2l >and equal to 6

From the choices given, how do you determine the correct representation?

a) x < -2 or x > 4

b) x < and equal to 2 or x > and equal to 4

c) x < and equal to -2 or x < 4

y = I-x + 3I

y = 3

Here are the choices:

I-x + 3l > 3

l-x + 3l is equal to or > 3

l-x + 3l is equal to or > -3

How do you calculate the following: 1.500 liters of H2O, calculate the number of mol. of H2O.

Thank you in advance.

Calculate the volume of a 7.5 M solution prepared by taking 25.0 ml of a 10.0 M solution and diluting it. Calculate the volume of H2O used.

What volume of KNO3 is obtained by dissolving 10.0g KNO3 to make a 1.0M KNO3 solution?

How do you solve this problem (I've balanced the equation here): H2SO4 + 2NaOH = Na2SO4 + 2H2O. The known is 2.50 M, the excess is the 2NaOH and the unknown is the Na2SO4 in grams. I'm stuck on the conversion (step 2) but if you could show me the complete answer I would appreciate it. I just don't know if I need to convert the Moles to grams, and if so, how. Thanks.

What is the formula for acceleration in a question like this: A police care takes off from rest with a constant acceleration of 0.003925. How much time does it take to reach a speed of 88.6 mph?

In Shakespeare's play, The Taming of the Shrew, what possible significance does the introductory play have?

How do you solve story problems that use a linear system of equations? I don't know what to look for nor how to set it up. Here is one of the problems: You are offered two different credit cards. Card Z charges $75 per year & 15% interest on your avg. balance. Card B charges $15 per year & 18% on your avg. balance. What would your avg. balance ned to be for the cards to cost you the same amount? If your balance is about $1000 per month, which card should you use?

Rabbit and turtle are in a race. The rabbit covers 3.0 m practice course in 5.0 seconds. Turtle covers same distance in 120 seconds. If the actual race is run on a 96 meter course, by how many seconds will the rabbit beat the turtle?

The formula P=W/t , to increase power one must either do _________ in ____________timr or ______________ in ________________ time