Bean

This page lists questions and answers that were posted by visitors named Bean.

Questions

The following questions were asked by visitors named Bean.

Please help! A drop of oil (volume 0.05 cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40 cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule. C...

18 years ago

Can anyone tell me why a hydrogen atom has so many spectral lines even though it has only one electron? Also how would I explain this using a diagram? There are many unfilled energy levels above ground. Excited electrons can move betwixt those levels on t...

18 years ago

The isotope caesium 137 has a half life of 30 years. How long will it take for the amount of this isotope in a sample of caesium to decay to one sixteenth of its original amount? Please can someone explain how I can calculate this from the quantities that...

18 years ago

I have drawn Lewis structures for hydrogen cyanide and cyanogen. I need to state the noble gas (for each element) whose electron configuration is attained in the Lewis structures. Can anyone help as I am quite confused! Many thanks Previous posts have ask...

18 years ago

I have read Le Chateliers principle but am having a little trouble explaining the effect of pressure and temperature on the equilibrium yield of methanol (CH3OH). Can anyone also tell me the effect of the increase of temp will have on the rate of the reac...

18 years ago

In practice the methanol production process is operated at temps of 250-300c and at pressures of 50-100 atmospheres in the presence of a copper based catalyst. Are these operating conditions consistent with the aims of achieving a high equilibrium yield o...

18 years ago

Please help! Complete equation by drawing structural formula(e) of the product(s). CH2=CH-CH-OH + CH3-CH-CH2-C =O CH3 CH3 -OH You will have to imagine the bonds as I can't draw vertical or diagonal lines! There are too many possibilities to imagine what y...

18 years ago

Identify 2 examples of the atoms or groups in the compound tocainide that could be involved in its binding to receptor sites in the body via hydrogen bonding. Give reasons for your conclusions. I have gathered that OH- and NH- bonds are an option, is this...

18 years ago

Explain the meaning of the term 'regulating mortality factor' and how an understanding of this can lead to successful biological control of pests in agriculture and horticulture. Thanks!! If anyone truly understood it, there wouldn't be pests, would there...

18 years ago

Could anyone suggest any good sources for examples of geological cross sections? I have to draw a cross section of igneous metamorphic and sedimentary rocks where the igneous cuts through the others and my head is not responding to this at all! Many thank...

18 years ago

I have to answer the question 'The age of granite can be determined using radiometric dating. Explain the basis for the determination of a 238 U-Pb radiometric date of 1120 Ma for granite'. Can anyone suggest any sources to help me? Thanks! http://www.jis...

18 years ago

Can anyone help me please? I have a sample of granite, which has been determined to have a U238-Pb date of 1120 Ma. How can I find out how this was determined? I have been trying to calculate this but my brain has frozen, so any help would be appreciated!...

18 years ago

Could anyone suggest the possible effect on the hydroshpere if there was a volcanic eruption? Many thanks it would be damged by the smoke from the volcanic eruption. Could you be more specific with your definition of 'damaged' please? What would happen to...

18 years ago

Please could someone remind me how to calculate mean speed? I have to work out the mean speed of lava flow that travelled 13.5km over 21 days. I don't expect the answer, but some help on how to obtain it would be heplful! Thank you. All you can do is aver...

18 years ago

HEENT: normal sulfanilic, normal hair distribution. Does this make sense, I can't understand the word after normal, it sounds like sulfanilic, but I can't determine if this makes sense

16 years ago

Four good friends, who love cats, have each named their cat after one of the other friends. Of the clues that follow, only one is true; the others are false. Which friend owns which cat? a.Candy’s cat is named either Dody or Alice. b.Betsy’s cat is named...

13 years ago

Consider the reaction: 2 NaBH4(aq) + H2SO4(aq) → 2 H2(g) + Na2SO4(aq) + B2H6(g) What volume, in mL, of a 0.500 M solution of NaBH4 is required to produce 0.529 g of B2H6? H2SO4 is present in excess.

10 years ago

A running back has a mass of 812 g and is running at a velocity of 9 m/s. How many joules of kinetic energy does the running back have while in motion?

4 years ago

A store is having a sale on jelly beans and almonds. For 3 pounds of jelly beans and 5 pounds of almonds, the total cost is $25. For 12 pounds of jelly beans and 2 pounds of almonds, the total cost is $37. Find the cost for each pound of jelly beans and e...

4 years ago

It is estimated that 11% of Phineas' white brain matter was damaged and 4% of his gray brain matter was damaged. Why might this have been a positive thing for Phineas? -Gray brain matter can grow back -White brain matter can grow back -White brain matter...

2 years ago

Read each question carefully choose the best word or phrase to complete each question or statment. 1. Gabi ____ fern. a Liest. b Sieht. C mäht. D seht. 2. Er___ den Rasen. a lest. b liest. c seht. d mäht. 3. Wir ____ den Rasen. a gehen. b lesen. c haben....

2 years ago

Write a 10 cast member High-school romance with Vampires

1 year ago

[EMILY walks through the hallway, her expression conflicted as she brushes past JESSICA, who shoots her a menacing glare. Meanwhile, TYLER approaches EMILY, a nervous smile tugging at his lips.] TYLER: Hey, Emily. I was wondering if you wanted to hang out...

1 year ago

Answers

The following answers were posted by visitors named Bean.

0.2066

10 years ago

1. 0.22 (B) 2. 54 (D) 3. 3/20 (a) 4. 2/5 (c) 100%, trust me. :)

9 years ago

Toriel is correct. Thanks for 100% :)

9 years ago

Beb

5 years ago

I don't know ho old this question is but the answer is 35km

4 years ago

@Ryan Brannon, yeah same lol

4 years ago

Figer it out it's not hard.

4 years ago

The boys little sister is shorter than him?

4 years ago

i'm here to check my answers. i already take the quiz/test then i check my answers before i submit. i recommend doing this bc it's not cheating and the teachers approve of it.

4 years ago

GUYS, the website is here to check your answers and get help when you struggle. its not to cheat. that's why i am here. i checked with my teachers and they all said it was okay as long as i wasn't putting my answers after i checked. connexus teachers are...

3 years ago

i agree but i don't recommend using wiki. anyone can edit information and most people don't trust it. just my opinion though. :)

They are correct %100

2 years ago

Continue

1 year ago

I mean start the story

1 year ago

Turn the last answer into a script