Nabiha

Where would you find iron II sulphide outside a chemistry laboratory?

16 years ago

where would you find calcium carbonate and sodium chloride outside a chemistry lab?

16 years ago

where would you find iron II oxide and sodium hydrogencarbonate outside a chemistry lab?

16 years ago

where would you find silicon dioxide outside a chemitry lab?

16 years ago

Explain, with a diagram, how 2 plane mirrors could be fixed at a dangerous T-junction so that motorists approaching the junction could see all other traffic?

16 years ago

A room with only one window is dark even at mid-day. Explain how you could use wall-paper, furnishings and mirrors to brighten the room.

16 years ago

The angle between an incident ray and the mirror is 30 degrees What is the angle of incidence? What is the angle of reflection? What is the total angle turned by the ray?

16 years ago

List all the subsets(include the null set and the set itself. a) (p) b) (p,q) c) (p,q,r) d) (p,q,r,s) By the way the brackets are supposed 2 b the weird curly brackets.

16 years ago

are there only odd numbers in the 6* tables?

16 years ago

Why does a pencil look broken if you hold it at an angle in a beaker of water?

16 years ago

I have to do an A4 page about Isotope uses and all the websites ive gone on are too complicated for me to understand. Does anyone know any uses of Isotopes?

16 years ago

does anyone know any uses of isotopes?

16 years ago

i have to write a poem about 'your expression of the vastness of space/universe as a poem. i have all the ideas in my head about the universe being incredibly vast. but im rubbish at writing poems. Can anyone help or find a useful website that has a poem...

16 years ago

Does anyone know a quick short really good summary of the story of Macbeth? Its for my theatre programme I'm doing. I also do a short bit about all 5 acts and the descriptions I've looked at on the internet are too long. Does anyone know a short quick way...

16 years ago

How will humans evolve? What will happen to the natural world-and how will humans respond? What will happen to the global population? Will inequalities be solved or strengthened? What will be the advances in medical science? No more disease? More powerful...

16 years ago

I need loads of info on why slavery is wrong. It must say why making people live in harsh conditions is wrong aswell.

16 years ago

I need as many reasons as to why slavery lasted so long.

16 years ago

Im not sure what this question is asking,can anyone help? Stidy sources F and G. What arguments do the writers use to justify the continuation of slavery and the slave trade?

16 years ago

An essay on the following question: How is Macbeth affected when he learns of his wife's death? Consider: -The Action of Act 5-Macbeth is standing almost alone, most of his warriors have fled, and he questions what it was all for. -The Characters of Macbe...

16 years ago

Source F: If abolotion shall take place, our interest in the West-India islands must be at an end,Seventy millions of property will wear away with time, and be sunk at last. The revenue will suffer an annual reduction of three millions at least; the price...

16 years ago

Why did slavery last so long? Is my answer good enough 4 ten marks? What else do I need to add? Slavery lasted for so long for many reasons. Source A, C and E tells me about the harsh conditions slaves lived in. After the 1440's lavery became a way of lif...

16 years ago

Metals + cold water. Li, Na, K, Ca. Notes on reactions, equations or space? <<<< don't no what space or equations means. can someone help? Also, say order of reactivity.

16 years ago

i have to do a project about 'west end musicals' can anyone suggest how i structure his and what i should include because I don't know what to include. shall i include a page about a popular musical and so on or not? can anyone find any useful sites which...

16 years ago

How do human beings cause suffering in 'Today's world'

16 years ago

There's lots of entertainment: Il y a beaucoup de distractions You can go out: On peut sortir It's very lively: C'est tres anime Everybody is in a hurry: Tout le monde est presse. Is this correct from english to french??

16 years ago

does anyone know the notes for the whole of the song ' Hallelujah' or 'my heart will go on' I have to perform them on the recorder- can i have the letters please because I can't read music.

16 years ago

I have to build a poem using all of these words exactly and this is really hard. I need help so badly. a a a a all alone and and and and and and and and and and arise arise bean-rows bee-loud build by cabin clay comes core cricket day deep dropping droppi...

16 years ago

What do these mean in English? Tu habites dans le centre-ville? Qu'est-ce qu'il y a dans ton village? Qu'est-ce qu'on peut faire a Manchester? Qu'est-ce tu fais a Manchester? Est-ce que tu aimes habiter a Manchester?

16 years ago

what do you observe in the displacement reaction of zinc and lead nitrate? also, what is the symbol equation for this reaction?

16 years ago

why does zinc and lead nitrate react?

16 years ago

does this sound right for what happens with the zinc and lead nitrate reaction? could i add anything else? The zinc displaces the lead. You can observe the lead preipitating on the zinc surface. The zinc changes to black crystals which dissolve in the wat...

16 years ago

what exactly would you observe and see at the end of the reaction of zinc and lead nitrate? include in formation about colour changes and bubbles. you can use the following equation to help; zinc+lead nitrate(arrow) zinc nitrate+lead

16 years ago

make the letter in the bracket the subject of the formulae: v=u-3t (t) a=b-4c (c)

16 years ago

A bike racer is riding his new bike at Silverstone. The track is 4km long. a) What is his average speed in m/s if he does a lap in 2 minutes? b) What is his velocity after one lap?

16 years ago

4. Give two reasons why graphite (carbon) electrodes are used in electrolysis. 5. You have 2 compounds called X and Y. X melts at 1200 degrees C and is soluble in water. Y melts at 156 degrees C and is insoluble in water. Draw 2 diagrams to show how you c...

15 years ago

What is formed at the anode and cathode when the following solutions are electrolysed? sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than hydr...

15 years ago

sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than hydrogen then hydrogen is produced instead of the metal at the positive electrode.

15 years ago

i need a really quick summary of chapter 2 in lord of the flies.

15 years ago

This is actually maths homework but the question sounds like geography: 1)Why do you think the UK is so high up in the list for mortality rates due to drug-related diseases. What do you think we can do to lower drug-related deaths in the UK? 2)Why do you...

13 years ago

how do i work out 7.25/0.25 without using a calculator???

13 years ago

The curve C with equation y=fx passes through the point (3, 14/2) given that f'(x)=2x+3/xsquared a) find f(x) (5 marks) b) verify that f(-2)=5 (1 mark) c) find an equation for the tangent to C at the point (-2,5) giving your answer in the form ax+by+c=0

13 years ago

A sixth form class consists of 6 girls and 9 boys. Three students from the class are chosen at random. The number of boys chosen is denoted by the random variable X. Show that a)P(X=0)=120/2730 b)P(X=2)=1296/2730

13 years ago

For any married couple who are members of a squash club, the probability that the husband has a degree is 2/4 and the probability that the wife has a degree is 1/4. The probability that the husband has a degree given that his wife has a degree is 3/9. A m...

13 years ago

A company assembles drills using components from two sources. Acemart supplies 91% of the components and Begud supplies the rest. It is known that 6% of the components supplied by Acemart are faulty and 3% of those supplied by Begud are faulty. a) represe...

13 years ago

The number of moles of cl2 produce will be ??????? If one mole of pcl5 is heated at 250 in a vessel having a capacity of 10dm³.

8 years ago

CaCO3(s) + 2HCl(aq)  CaCl2(aq) + H2O (l) +CO2(g) What’s the spectator ion in this ?

4 years ago

thankyou!

16 years ago

i think -125-3=-128

16 years ago

where would you find iron II oxide and sodium hydrogen carbonate outside a chemistry lab?

16 years ago

type in to google images earth's crust layer and core, then go to the 4th image.

16 years ago

thankyou, plz can u describe how it wuld look like so i can draw it 4rm ur explanation.

16 years ago

do u mean bleech (light) furniture

16 years ago

thanks

16 years ago

it looks correct to me

16 years ago

i dunno. i think it just is cus deyr like nxt 2 each ova

16 years ago

im only askin 4 help!!! im not like telling u 2 say like all the uses.

16 years ago

There are two types of germination present. A hypogeal germination is where the cotyledons remain below the surface of the soil (e.g. maize and broad bean). The other type of germination is called epigeal germination, where the cotyledons are carried abov...

16 years ago

yes, i do mean isotopes that undergo radioactive decay. However i do not really understand what this radioactive thing have to do with isotopes or unstable or stable.

16 years ago

i have decided to go with a normal poem, is this good enough?? I look up into eternal Space, O' the vastness of it all, But the vastness of 'Space' within me, Makes outer space seem so small. From Earth I glared at the twinkling stars, And the sun that li...

16 years ago

cant you just use a calculator

16 years ago

it would be good if the descriptions of th 5 Acts were 3, 4 or 5 ssentences to make the play sound interesting

16 years ago

ne- Slovenian nei- Norwegian le- Maltese i hope dis helps, lol

16 years ago

i mean is it good enough in the actual information and not typos or verbs. Do I need to add anythin to the actual content. I can adjust the other things wen i write up the real version. Is there any other reasons because it seems too short.

16 years ago

Paumonauk

16 years ago

This is because the Himalaya Mountains are a result of continent-continent collision and vulcanism in destructive boundaries results from subduction of oceanic plates. As the Indo-australian plate continues to collide with the Eurasian plate, subduction i...

16 years ago

upcoming shows probably because that is the most recent. but i still need to include history so I need both sources of information to combine.

16 years ago

aparantly this poem is by an author and I just want to know who this author is aswell.

16 years ago

ok, thankyou for the help.... i tried but i couldn't get what they meant, i was just making sure

16 years ago

are there any notes about colour changes or note of any bubbles?

16 years ago

i meant V=2v+3u make the small v the subject of the formulae

16 years ago

yes i think this is correct.

15 years ago

but how would i answer it anyway ?/

13 years ago

sorry im really confused, which part of the questions is this answering? can i tell you my answers and you say if they're correct. a) y=x squared -3x to the power -1 - 1/2 b)i did this :) c) 13x-4y+6=0

13 years ago