?

K2CO3 (s) + 2HNO3 (aq) ---> 2KNO3 (aq) H2O (l) + CO2 (g)

If one starts with 3.95 g nitric acid, HNO3 in question 1a above, how many grams of carbon dioxide (CO2) can be formed?

Just a brief explanation because I can t find any examples that are helpful. Thank you so much.

I'm 19 years old and I can bring a friend. They said I can go anywhere without them, but they want me to still be safe. (of course) I saw Seattle, Washington on Bizarre Foods and thought Why not? So is it a good idea to go and what can I do when I get there?

I'm open to other vacation suggestions as well. It has to be in the U.S. Thats the parents rule.

I have to come up with a hypothesis on why some populations of bacteria become resistant to antibiotics. Now I know about what is left from the antibiotic duplicates, but I feel like thats not what they want. The background mentions how lifeguards are infected with a skin disease and it does t occur in people who haven t had exposure to sun and haven t had contact with those already infected. I m at a loss. Should I approach it with the UV killing bacteria or the antibiotics not wrong. I don t know. Thanks!

We are doing an algebra review and i can't remember, for the life of me, how to do this. Help is appreciated! Also, sorry I have to type it out. The upload a photo thing isn't working.

a.) [2x(x+1)^3-3x^2(x+1)^2]/(x+1)^6

b.) [3+1/(x+2)]/4-1/x+2)

Again, simple but I forgot. Super sorry I had to type it out. everything after the bracket is above the slash on both problems. If theres confusion, I'm so sorry and don't worry about answering.

Thanks again!

If you want to know specifics, the length is 1.44cm, weight is 3.52gm, volume will be in cm^3

I'm going on a spring break trip with my some of my sorority sisters. We are all under 21, so no drinking, and there are only around 10 of us, so something decently priced. We thought about skiing or a cruise, but both are pretty pricey around spring break and getting passports is a hassle. What are some ideas? We are horribly indecisive.

That probably made no sense at all so I'll just show you what the email said.

"This February, we're releasing the Mac version of The Sims 4! Even more good news: if you already own The Sims 4 for PC, you will find that the Mac version is automatically accessible through Origin. Stay tuned for more info in the weeks ahead."

If I buy the pc version now with my mac, will I be able to download the mac version since it's already available? I mean it seems like I can, but I don't want to spend money for no reason.

Thanks in advance

Think Sound of Music. I have been asking the yahoo answers community for homework help more than I should so I thought we could talk about your favorite things. Finally give the community a chance to talk about themselves. So yahoo answers, what are your favorite things?

1.) Use an Addition or Subtraction Formula to find the exact value of the expression, as demonstrated in Example 1.

cos 285°

2.)Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.

tan pi/24 + tan pi/8 all over 1-tan pi/24 x tan pi/8 Then find exact value.

3.) Write the given expression in terms of x and y only.

cos(sin−1 x − tan−1 y)

4.) Write the given expression in terms of x and y only.

sin(sin−1 x + cos−1 y)

5.)Find the exact value of the expression.

tan(sin^-1 3/4 - cos^-1 1/5)

6.) Find the exact value of the expression.

sin(cos^-1 5/6 - tan^-1 1/2)

7.) Evaluate the expression under the given conditions.

cos(θ − phi); cos θ = 15/17, θ in Quadrant IV, tan phi = −15, phi in Quadrant II

8.)Evaluate the expression under the given conditions.

sin(θ + phi); sinθ = 3/5, θ in Quadrant I, cos phi = −5/5, phi in Quadrant II

PS4.1. Phosphorus reacts with oxygen according to the equation;.

P4(g) + O2(g) __> P4O10(s)

a) Write a balanced chemical equation:

b) Calculate the mass of oxygen required to combine with 68.89 g of phosphorus.

c) Calculate the mass of P4O10 produced when 68.89 g of phosphorus combines with the amount of oxygen calculated in part b.

When pentane, C5H12, is combusted in air, the products are carbon dioxide and water. When an amount of pentane and an amount of oxygen are mixed in a particular experiment 100. grams of carbon dioxide are produced.

b) How many moles of CO2 are produced in the reaction?

If you could explain the process. that would be awesome. My teacher tends to confuse me.

1. When pentane, C5H12, is combusted in air, the products are carbon dioxide and water. When an amount of pentane and an amount of oxygen are mixed in a particular experiment 100. grams of carbon dioxide are produced.

a) Write a balanced chemical equation for the combustion of pentane

1.) Dimethyl ketone is used as a solvent for many organic compounds. Quantiative chemical analysis of 2.80 g of this product gave 1.739 g carbon, 0.288 g hydrogen and 0.773 g oxygen. Determine empirical formula of compound.

2.) A carcinogenic organic compound that is sometimes used as a solvent, is composed of 92.3% carbon, and 7.69% hydrogen. Its approximate molecular mass was found to be 78. Calculate the empirical formula and the molecular formula of the compound.

By no means am I thinking of becoming bulimic, I'm just curious. There have been several occasions when I was sick enough to throw up, but I couldn't. I went in the bathroom, touched my uvula, and waited. I had nausea, but no vomit came up. I know this is gross and I'm sorry. I just want to know why I can't make myself throw up. I rarely ever get the stomach flu or throw up. When I do throw up it lasts a day and a half and I have no control. Does anyone know what this is? Or why I'm like this?

I have all the codes to the games, but I don't have all the discs. Can I download them on my computer? It's a mac.

I recently watched a Tyra show where the had the Psychic Twins. They were amazing and it got me thinking, how many people are like them and what types are there. I'm really curious so serious answers please!

Thanks

I fell in love with this show and I, unfortunately, watched all the seasons within a two week period. Bad idea because I'm going through Merlin withdrawals and NEED TO WATCH NEW SHOWS NOW!!! any info will be greatly appreciated! =)

I'm trying to motivate girls my age. A lot of them feel like the aren't attractive because they aren't really skinny. Now I've heard that guys don't like super skinny girls, but that seemed judgemental and not right. Can you help me clear this up in CLEAN fashion? Thank you.