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Im nervous that i will fail chemistry this year and the principal said i would be on probation

is it hard or easy because im not that good at math .i am ok but not the best because sometimes i do mistake and is there any factoring or graphing???? i dont want to get kicked out i love my school?-

Simplest chemistry question ever!........

Topic: Thermodynamics Is it possible for a system to do work ( or get work done on it ) without changing its volume? i.e. isochoric process ... Please give explanation also. Thanks!-work done= + PRES

Please answer this question

Thermodyanmics:::- The heat evolved in neutralisation of NaOH by HCL is x joules and that of NaOH by CH3COOH is y joules. Which of the follows is true? a] x=y b] x>y c] x d] Relations cannot be pre

I'm having difficulty in solving the following Chemistry questions.

If anyone knows how to solve them, then, Plz help me out...! 1.Calculate the molarity of the following solutions:- (a) 4g of caustic soda is dissolved in 200mL of the solution. (b) 5.3g of anhydrous

How can I tell if a substance is radioactive

Lets say i bought iodine in the mail and it was irradiated so the iodine is now irradiated and can hurt the thyroid instead of helping. How can I tell if the iodine is radioactive? Are there any simpl

Two numbers have a product of 1014 and their sum is 65.

help please with solution-Let x and y be the numbers youre looking for. Given: xy = 1014 Given: x + y = 65 Rearrange that last one: y = 65 - x Substitute this value for y into the first given equation

When dry ice changes into carbon dioxide, gas particles become larger. True or False

If false, then rewrite your statement so that it becomes true.-False. The correct sentence will be when the dry ice changes to carbon dioxide the molecules separates out leading to the expansion of vo

Combined Gas Law question am I correct ? Help

A gas 2.48 L at 85.0 C and 725 torr. What is the volume will it occupy at STP ? Ok well first combined law is P1xV1/ T1 = P2 xV2 /T2 Ok first I have to convert temp from C 273 + 85.0 = 358 K Then

How do I balance Ca(HCO3)2 + H2SO4 ---> CaSO4 + H2O + CO2

I worked that out myself by showing products. How do I balance this? Or how do I begin?-Ca(HCO3)2 + H2SO4 ---> CaSO4 + H2O + CO2 1Ca.......1Ca 4H.........2H 2C.........1C 10O.......7O 1S.........1S

Chemistry problem (isotope related)

A question asks me: Assuming that Carbon has only one type of isotope (13C) estimate the mass and number of moles of 13C in 300g of carbon? How am I supposed to figure this out? Please show all work

Can you answer these MCQs? It's a part of my chemistry homework.

1) A crystal is most likely to have a low melting point, if it a) is a macro molecule b) is a crystal lattice c) has delocalisedvalence electrons d) has weak van der Waals forces 2)Which two elements

Is there any difference between Chloromethane and Methylchloride

Methylchloride is the common name Chloromethane is the IUPAC way of naming it.-no

Really dumb chem question. What does H+ + OH- make

is it a neutral OH?-Nope its not a dumb question. In neutral reaction, its said to be the combination of hydrogen ion and a hydroxide ion to form salt and water.so you have H+ + OH- =H2O(WATER).-Nope,

What's the nuclear reaction for Hg --> Au

The bombardment of 198Hg with neutrons produces 198Au. How would i write a complete reaction for this process? What would the other product of the bombardment reaction?-198Hg + n ---> 198Au + n + e

Why white phosphorous has to be kept in water

please explain with more words-White phosphorous Oxidized vigriously by the Oxygen of the air ,for that a combustion occur when white phosphorous exposure to air , in order to prevent that white phsph
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