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chemdummy
Questions (16)
What relationship exists between H^+ ion concentration and OH^- ion concentration? Waht is the OH^- concentration of an aqueous
1 answer
808 views
On the average; glucose (C6H1206) makes up about 0.100% by weight of human blood. How much glucose is there in 1.00 kg of blood?
2 answers
1,304 views
how to prepare 300ml of .250M HCl from a 1.00 M HCl stock solution
2 answers
486 views
You have a large amount of 7.50M stock solution. You need 1.80L of 3.00M solution for an experiment. How would you prepare the
1 answer
1,618 views
A very flexible helium-filled balloon is released from the ground into the air at 20degree C The initial volume of the balloon
1 answer
2,514 views
A very flexible helium-filled balloon is released from the ground into the air at 20degree C The initial volume of the balloon
1 answer
866 views
Is CaCl2 an ionic compound or molecule? plss help. i'm just a little bit confused.
1 answer
503 views
Why is ther no such thing as NaCl molecule? pllllsss neeed heeelp thank you
1 answer
419 views
How many atoms are there in the following problems?
which one has the most number of atoms? a. 5 molecuels (NH4)2S b. 9 molecules
1 answer
1,176 views
How many moles of water are there in 5 moles of Tungsten(V)oxalate tetrahydrate?
1 answer
1,499 views
What is the mass of 4.80 moles of MgCl2?My answer is: Mg=24.3 g/mole
Cl2=35.5g/mole*2=71g/mole so, Mg 24.3+ Cl2 71= 95.3g/mole
2 answers
3,423 views
complete and balance
Co(OH)3(aq)+Na2CO3(aq)
2 answers
622 views
what is the 1. chemical equation 2. complete ionic equation 3. net ionic equation include phase of HCH3COO+NaHCO3 pls correct my
2 answers
5,572 views
C4 H10 O or diethyl ether or with a formula of CH3CH2OCH2CH3 its stick structure is
H H H H ! ! ! ! .. H-C-C-C-C- O-H ! ! ! ! ..
1 answer
1,904 views
colorless vinegar added to purple cabbage juice turns pink What is the reason behind and why is it considered a chemical change?
1 answer
1,047 views
When two solutions are mixed and a new color is observed, is this color change an indication that a chemical reaction has
1 answer
921 views
Answers (2)
sorry but it should be -50 degree C i typed it wrong
thanks DrBob222 for the answer kindly teach me what does sum coefficient mean and how to get it based from this problem
