LC

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

Questions

The following questions were asked by visitors named LC.

What are the biotic factors of the temperate deciduous forest? Thank you.

We did a DNA extraction lab of a banana. I was wondering, what exactly is the purpose of using mushed bananas, and how was water used as well (we used the water after using soap and salt, but I can't understand what the water did)? Thanks.

Hello, I was wondering if it was possible for you to assist me in having a science/biology teacher answer my question. It is called 12 Biology and I reposted as Biology Lab Banana DNA. My reason for this is that so many questions keep popping in, all in a...

The future value of a $500 annual deposit to a savings account after three years is $______, assuming an investment rate of 10% and annual compounding (end of period).

Find the (theoretical) probability of a given event, assuming that the dice are distinguishable and fair, and that what is observed are numbers uppermost. Two dice are rolled; the numbers add to 7. 1

The graph of the derivative, f '(x), is given. Determine the x-coordinates of all points of inflection of f(x), if any. (Assume that f(x) is defined and continuous everywhere in [-3, 3]. If there are more answer blanks than inflection points, enter NONE i...

Annual sales of bottled water in the country in the period 1993-2003 could be approximated by the function below, where t is time in years since 1990. Were sales of bottled water accelerating or decelerating in 2000? How fast? R(t) = 10 t**2 + 100 t + 240...

30cm^3 of a mixture of methane and ethane were mixed with 100cm^3 of oxygen at ordinary temperature and pressure and exploded. After cooling the residual gases occupied 61.5cm^3. Find the percentage by volume of each gas in the mixture, methane (CH4) and...

I thought it was similar so I wrote... x + y = 30cm^3 x + 2y = 61.5cm^3 i.e 2x + 2y =60cm^3 x + 2y = 61.5cm^3 therefore x= -1.5cm^3(volume of methane) and y= {61.5-(-1.5)}/2= 31.5cm^3(volume of ethane) However my teacher said the volume i got for ethane i...

Aluminium is manufactured by electrolysis(electrolytic decomposition) of bauxite, Al2O3. How much aluminium can be obtained from 1kg of pure bauxite?

A possible reaction for converting methanol to ethanol is: CO(g) + 2H2(g) + CH3OH(g) -----> C2H5OH(g) + H2O(g) I completed parts A-C correctly, and found the following info: delta H = -165.6 kJ delta S = -227.4 J/K delta G = -97.9 kJ The next question is...

A voltaic cell, with Ecell = 0.180 V at 298K, is constructed as follows: Ag(s)|Ag+(satdAg3PO4)||Ag+(0.135 M )|Ag(s) What is the Ksp of Ag3PO4?

Sketch the region enclosed by the given curves. y = 4/x, y = 16x, y =1/4x, x > 0 Find the area.

A patient needs a total dose of 50 grams of albumin. The pharmacy has 50ml bottles of Albumin 25% in stock. How many bottles should pharmacy tech prepare to provide required dose? A.1 bottles B.2 bottles C.3 bottles D.4 bottles

A furniture manufacturer makes wooden tables and chairs. The production process involves two basic types of labor: carpentry and finishing. A table requires 2 h of carpentry and 1 h of finishing, and a chair requires 3 h or carpentry and 1/2 h of finishin...

Answers

The following answers were posted by visitors named LC.

Yes, that is correct.

Again, I believe this to be correct.

I think this is one is also right, but, please make sure you check all of these with your teacher.

This is similar to 13 or 14, I don't remember which number, but the one with the presenters and the notes. So, I would suggest 16 a.

Sorry, I haven't done grammar in years! :)

Thanks for trying :)

F= 500N , m= 10kg , t= 2.1s , a=? , v(f)=? F= (m)(a) therefore a= F/m so a= 500/10= 50ms and v= u(i) + (a)(t) so v(f)= 0 + (50)(2.1)= 105ms note=== v(f) is final velocity and v(i) is initial velocity.

Thank you DrBobb22

I thought it was similar so I wrote... x + y = 30cm^3 x + 2y = 61.5cm^3 i.e 2x + 2y =60cm^3 x + 2y = 61.5cm^3 therefore x= -1.5cm^3(volume of methane) and y= {61.5-(-1.5)}/2= 31.5cm^3(volume of ethane) However my teacher said the volume i got for ethane i...

The one from last week?

If yes...Here it is... 24cm^3 of a mixture of methane and ethane were exploded with 90cm^3 of oxygen. After cooling to RTP the volume of gases was noted and it decreased by 32cm^3 when treated with KOH. Calculate the composition of the mixture.

Yes the answer to the first question was correct, that's what my teacher got too... but she did it like this. Either way its correct. x + y = 24cm^3 x + 2y = 32cm^3 then 32 - 2y + y = 24cm^3 32-y = 24cm^3 y= 8cm^3(volume of ethene) x + 8 = 24cm^3 x= 16cm^...

Lol when you explain it. Not when my teacher teaches me, I never understand a word she says. Anyways thanks alot for staying up to help me. There's something yo should know though...I wrote the reaction like how you did. CH4 + 2O2 ==> CO2 + H2O and my tea...

****There's something you should know though...I wrote the reaction like how you did. (CH4+ C2H6) + 2O2 ==> CO2 + H2O and my teacher said H2O is not part of the residual gases. She said H2O should be replaced with O2. (CH4+ C2H6) + 2O2 ==> CO2 + O2 ****

Ok I understand...:-)

You can also word the question as an informal command (tu) Describe como a) eres tu b) es _______ (name)

answers are correct. As a rule of thumb, adjectives go AFTER the noun (chico perezoso. In an enumeration (la primera persona, etc) or poetry, the adjective goes BEFORE (hyperbaton)

not answered. Question asked: express sinx + cosx in term of a.

I tried 4.0x10^-5 with a slightly different first value (5.35E-2 vs 5.15E-2) and it was still marked as incorrect. How do i get the correct answer

*Update* I tried following a similar example in my textbook using the Nernst equation but still got the wrong answer log(xM/0.135M) = 2(0.180V)/-0.0592 = -6.081081081 xM/0.135M = 10^-6.081 = 8.29E-7(0.135M) = 1.12E-7M = x = [Ag+]anode 1.12E-7(2) = 2.24E-7...

I believe its D.180MG