Lucia

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

Questions

The following questions were asked by visitors named Lucia.

2HCl + Mg = H2 + MgCl2 We are given 0.10 grams of Mg The concentration of Mg = 24g/mol Using avogadro's law (V=n/c; v-volume(L), n-number of moles(mol), c-concentration(g/L)) we have to predict the amount of HCl needed. help !

which is the formula that describes process to transform Fe3+ to Fe2+ thanks to HCl in the stomach?

How can I prove this identity? (1 + sinØ + cosØ):(1 - sinØ + cosØ) = (1 + sinØ) : cosØ

the area of a rectangle is 425 square feet. if the perimeter is 84 feet, find the length and the width of the rectangle

A copper penny has a mass of of 3gram. The atomic number of copper is 29 and the atomic mass is 63,5gram/mol.what is the total charge of all electrons in the penny?

Find the coordinates of the image of the point (4,2) when it is reflected across the line y=3

The position of a particle moves along the equation X = Vo/K (1 - e^(-KT)) Vo and K are constants a)determine the total distance that the particle moves b) Show that the aceleration is derived from the velocity c) Reason how it could take an infinite amou...

Find the arithmetic sequence if the fourth term is -6 and the eleventh term is -34

pls correct this sentence for subject-verb agreement Going home now,how I wish I could get there before it starts to rain.

I need some help with my intro paragraph for a compare/contrast essay. I have the first and last sentences, just need some help with the filler sentences. Ideas? ( "The similarities and differences between the “Gettysburg Address” and “Pericles' Funeral O...

Simplify the following equivalent ratios: 45:10:25:55

What is the voltage across the 6 μf capacitor, Vab = 20V?

If a crate slides down a 10-degree incline at constant speed, what is the coefficient of friction between the crate and the incline? What is the coefficient of friction when a crate slides down a 20-degree incline at a constant speed?

Please check my answers and let me know if I am correct thanks. 1. (1+ markup percent on cost) x cost equals the A. Selling price B. markup C. cost at retail D. none of the above My answer is the A. Selling price 2. Convert a 30% markup percent on cost to...

Please check my answer thankyou very much. Sue made deposits of $250 at the end of each year for 12 years. The rate received was 6% annually. What’s the value of the investment after 12 years? A. $3,000 B. $2,028 C. $4,200 D. $4,217.48 My answer is D.$ 4,...

Give your own position on this specific problem we have in our country because of human trafficking

differences and similarities that can be identified on the basis of technology as an external determinant of the various education systems – South Africa, Ethiopia and Nigeria as developing countries.

What is an analogy? 1. Figure of speech created by placing two words with conflicting meanings next to each other to create an effect. 2. Figure of speech that compares seemingly unlike things by saying one thing is the other thing.

During the process of Photosystem I, NADP + is changed into NADPH. NADPH has a neutral charge. What reactants are necesary to for the product? 1. an electron and hydrogen ion. 2. an electron and two hydrogen ions. 3. two electrons and two hydrogen ions. 4...

Suppose you seal a house plant in a glass container. What about the scenario would lead to the plant's death? 1/lack of sugar 2. lack of light 3. lack of oxygen 4. lack of carbon dioxiode

Assuming an equation with one side as a squared variable expression and the other side is a numeric expression, which statement is correct: 1.the numeric expression is zero, there are two solutions. 2. the numeric expression is zero, there is 1 solution....

Answers

The following answers were posted by visitors named Lucia.

how do i convert mols of Mg to HCl, if the grams of HCl aren't given? p.s we're supposed to use the equation V=n/c (avogadro's law)

I need some help with dangling and mismplaced phrases..can you help me?

The roman empire did actually extend to Spain

Stortage of electricity and water

No need, I figured it out. Thank you though. Apologies.

I don't have a solution

Assess the extent to which bad road use has a direct impact on the physical,emotional,social and economic aspects to the family,the community and the country

I, I left Cuba still a girl, I have exactly half of my life in exile, I have a husband with his own business, two daughters born in the United States, a house in the suburbs (mortgaged to the roof) And I do not know how many credit cards. I, who speak the...

Divine is right

So the answer is E? or V=5k(q/r)

Service delivery

Hi there, I wanted to introduce myself in a way that shows I’m interesting, witty and clever. Alas, I wrote this email instead. I come bearing just what you’ve always wanted, another request! I’ll get this over as quickly as possible. Are you accepting li...

an external determinant influences the education systems of South Africa, Ethiopia and Nigeria as developing countries.

evaluation of best practices through engaging in a literature review in order to document/report on, the influence of technology as an external determinant on the education systems of South Africa, Ethiopia and Nigeria

Thanks for that! Please help me with this analogy: Zester is to lemon as grater is to cooking, chef, kitchen, cheese

So, it would be like saying: keyboard is to type like pen is to write... correct?

Thanks for that!

But the overall reaction involves the reduction of NADP\(^+\) by accepting two electrons and a proton (H\(^+\)), resulting in the formation of NADPH. Therefore, don't you think that the correct choice is: ***two electrons and a hydrogen ion.***??

Thanks. So the answer is *two electrons and a hydrogen ion.

I think it would be the lack of carbon dioxide. What do you think?

But for example, if they give you x^2=16 I would take square root of both sides and get (x-4)=0 and (x+4)=0 So, here I would have 2 answers. Is this related to the question or this is a completely different issue? Thanks

But with the details and information in the question, how come I should assume that they are talking about a zero, it could be any number? Or not?