• chemistry

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358 views

Positive and Negative control in this osmosis experiment?

chemistry

asked Dec 15 '15 at 21:00

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337 views

reduction of 5-ethyl-2-heptanone?

chemistry

asked Jun 20 '15 at 03:01

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285 views

How to draw lewis structure for (CH3)2O-BF3?

chemistry

asked Jul 5 '15 at 14:04

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263 views

HELP!!! rank strongest acid to weakest acid?

chemistry

asked Sep 10 '15 at 21:01

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228 views

Use the following data to estimate ΔHf° for magnesium fluoride.?

chemistry

asked Aug 21 '15 at 23:00

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228 views

Chemists commonly use a rule of thumb that an increase of 10 K in temperature doubles the rate of a reaction.?

chemistry

asked Aug 13 '15 at 12:00

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205 views

what is a fictitious element?

chemistry

asked Apr 11 '16 at 15:05

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202 views

Solubility of Marble?

chemistry

asked Jul 20 '15 at 00:02

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198 views

How long will it take for the concentration of XY to decrease to 12.5% of its initial concentration?

chemistry

asked Sep 18 '15 at 16:01

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185 views

Why is the dissolution of Sodium Thiosulphate in water endothermic?

chemistry

asked Aug 29 '15 at 16:05

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183 views

1,433,449,370 in scientific notation?

chemistry

asked Oct 27 '15 at 06:02

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182 views

In a redox reaction, why does an element’s oxidation number decrease?

chemistry

asked May 23 '16 at 06:02

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181 views

In writing a chemical equation that produces hydrogen gas, the correct representation of hydrogen gas is?

chemistry

asked Nov 19 '15 at 19:01

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179 views

Select five nonmetallic elements that exist as gaseous substances under ordinary conditions.?

chemistry

asked Jun 22 '15 at 08:03

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173 views

Construct the equation for the oxidation of acidified iron(II) ions by oxygen..How do I start to do this?

chemistry

asked Mar 19 '16 at 14:06

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161 views

Chlorine tablets do not dissolve, why?

chemistry

asked Aug 23 '15 at 06:01

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152 views

What unit is used to measure cell potential?

chemistry

asked Jun 1 '16 at 10:04

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149 views

What is the condensed formula for 2,2,3-trimethylbutane?

chemistry

asked Aug 19 '15 at 09:00

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148 views

For the reaction 2A(g) + 3B(g) → C(g) + 2D(g).......... [ Please help :( ]?

chemistry

asked Sep 9 '16 at 15:03

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148 views

(e) Give the reaction for the dissolution of the salt in water. (Use the lowest possible coefficients. Include?

chemistry

asked Jun 30 '15 at 17:06

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137 views

Which of the following aqueous solutions will have the lowest vapor pressure at 25°C?

chemistry

asked Jul 11 '15 at 20:00

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131 views

Every conversion factor is a ratio that is equal, less than, or greater to 1? Please help?

chemistry

asked Jan 23 '16 at 03:02

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126 views

Nitro Compounds: What is the reaction involved in the ferrous hydroxide test?

chemistry

asked Jul 2 '15 at 09:10

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120 views

Which types of orbitals are found in the principal energy level n = 2?

chemistry

asked Apr 13 '16 at 06:05

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120 views

How well does Osmium conduct electricity?

chemistry

asked Oct 12 '15 at 00:00

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119 views

Polarity of Isoborneol vs Borneol?

chemistry

asked Jun 28 '15 at 00:00

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118 views

Which is not a reason that a sugar crystal dissolves in water?

chemistry

asked Sep 18 '15 at 09:01

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114 views

04.08 Percent Yield Someone please help me with this lab?

chemistry

asked Jan 26 '16 at 06:01

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111 views

Why do groups 2 and 5 have low electron affinities?

chemistry

asked Aug 30 '15 at 01:01

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104 views

What was the starting material for oil formation?

chemistry

asked Apr 12 '16 at 21:05

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101 views

Ca3(PO3)2, what is the name and how did you get it?

chemistry

asked Jun 22 '15 at 03:00

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100 views

All of the following factors may speed up a chemical reaction except?

chemistry

asked Aug 25 '15 at 05:02

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93 views

Explain the poor solubility of long chain alcohols.?

chemistry

asked Apr 3 '16 at 21:03

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91 views

Why do lipids make effective cell membranes in living cells?

chemistry

asked Oct 27 '15 at 05:05

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90 views

Silver trioxide reacts with water to form sulfuric acid?

chemistry

asked Oct 14 '16 at 06:02

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88 views

How many joules of energy are needed to convert 50 g of water at 50 degrees c to 65 degrees c?

chemistry

asked Jun 24 '15 at 06:00

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87 views

If the amount of air in a spherical balloon is 288 cu. in.,?

chemistry

asked Jun 24 '15 at 09:00

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80 views

What ions are most likely to form with these elements?

chemistry

asked Mar 13 '16 at 23:05

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79 views

List three clues that indicate a chemical change might be taking place?

chemistry

asked Sep 9 '15 at 17:00

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79 views

Disadvantages of phenolphthalein?

chemistry

asked Sep 2 '15 at 09:01

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79 views

Identify the number of signals (H NMR) of propyl benzene.?

chemistry

asked Aug 13 '15 at 19:03

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79 views

Which of the following statements are true?

chemistry

asked Aug 5 '15 at 07:00

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78 views

is Ethyl-2-cyanoacrylate safe for use in an aquarium?

chemistry

asked Sep 29 '16 at 00:02

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78 views

2 Chemistry Questions. Help me?

chemistry

asked Aug 26 '16 at 22:00

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74 views

Order the following in terms of increasing atomic radius: As, K, Br, Se.?

chemistry

asked Feb 2 '16 at 19:01

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72 views

what kind of radiation does a metal detector give off?

chemistry

asked Aug 17 '16 at 07:05

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72 views

Percent yield question?

chemistry

asked Feb 2 '16 at 19:02

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69 views

Sodium Hypochlorite Molecule?

chemistry

asked Aug 8 '16 at 07:04

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69 views

HELP ASAP rank these species based on their ability to act as an oxidizing agent?

chemistry

asked Sep 14 '15 at 00:01

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68 views

kcl is an electrolyte.explain?

chemistry

asked May 10 '16 at 09:01

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