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why are ores used as a source of metals
why are ores used as a source of metals
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chemistry project
Project
Choose ONE topic to write 5 pages essay include the cover page and reference page. Your paper should be written according to the APA guidelines. Please see link: https://owl.english.purdue.edu/owl/resource/560/1/.
Topics to choose from: The chemistry of diet sodas and the effect on bone structure Acid rain in your neighborhood and the effects on plants The power of fluoride in community water Plastics packaging and its effects on food stuffs Turning yeast into a biofuel Using sugar for batteries Organic food vs. Pesticides Chemical signals from medications Chemicals that trigger food allergies
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for each of the aluminum measurements calculate and record the following a total volume in the graduated cylinder of the…
for each of the aluminum measurements calculate and record the following a total volume in the graduated cylinder of the water and metal b. net volume of the metal c. total mass of the metal d density of the metal
started with balance of 54.0 30 ml of water added for total of 84.00 bal 5 g of aluminum addedbal 89.000 vol 31.85 5 g of aluminum added bal 94.000 vol 33.70 5 g of aluminum added bal 99.000 vol 35.56 5 g of aluminum added bal 104.000 vol37.41 5g of aluminum added bal 109.000 bol 39.26 for a total of 25 g of aluminum in 30 cc of water
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Online homework help.
Chamistry online homework help 16 Question. 1 dollar for 1 Q.
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If you wish a buffer to have a pH of 10.00, what is the desired [H3O+]? In the buffer from 6, you want to select a weak acid (one of the conjugate pair) with a Ka close to that value of [H3O+]. Explain why, using the expression for Ka. Every Ka is
If you wish a buffer to have a pH of 10.00, what is the desired [H 3 O + ]?
In the buffer from 6, you want to select a weak acid (one of the conjugate pair) with a Ka close to that value of [H 3 O + ]. Explain why, using the expression for Ka.
Every Ka is for a reaction HA (aq) + H 2 O (l) ⇄ H 3 O + (aq) + A ‒ (aq).
Write the chemical equilibrium for the acid H 2 CO 3 for which the equilibrium constant is the Ka of carbonic acid.
b) Write the expression for the Ka for the reaction of carbonic acid with water.
c) If the patient’s pH is 7.30, calculate [H 3 O + ]
How many mL of a 0.175M solution of NaOH (aq) will react with 150.0 mL of a 0.158 M H3 PO4 (aq) solution?
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Copper (II) nitrate reacts with sodium sulfide to produce sodium nitrate and copper (II) sulfide in this reaction. How many grams…
Copper (II) nitrate reacts with sodium sulfide to produce sodium nitrate and copper (II) sulfide in this reaction.
How many grams of NaNO3 are produced from the reaction of 2.44 moles of Cu(NO3)2
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Chemistry HW – Radioactivity wksheet and graph – need in 36 hours MAX!!!!! – NOT LONG
plEASE SEE ATTACHED WORKSHEET. mUST FOLLOW ALL DIRECTIONS AND MAKE GRAPH. pLEASE IGNORE THE HAND WRITTER ENTRIES IN TABLES…CORRECT IF WRONG
iF YOU DO NOT COMPLETE NO MONEY PAID
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consider the following reaction: 2H2(g)+O2(g)=2H2O(l) delta H=-572kJ how much heat is evolved for the production of 1.00 mole of H2O(l)?
consider the following reaction:
2H2(g)+O2(g)=2H2O(l) delta H=-572kJ
how much heat is evolved for the production of 1.00 mole of H2O(l)?
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As discussed.
As agreed.
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We Acceppt
