Questions in Chemistry

What is the product of the hydrogenation of an alkene

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Draw the product of the hydrogenation of 2-butyne. draw all hydrogen atoms.

How many moles are there in 24 grams of fef3

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How many moles are there in 24.0 grams of FeF3?

Select the atomic models that belong to the same element.

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Select the atomic models that belong to the same element.

Draw a second resonance form for the structure shown below.

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Draw a second resonance structure for the following ion (be sure to include the charges and all lone pairs)... + ..N=N=N <-------------->.. ..

What is the molar solubility of pbbr2 in pure water

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The ksp of pbbr2 is 6.60×10−6 . What is the molar solubility of pbbr2 in pure water?

Predict whether the compounds are soluble or insoluble in water.

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Predict whether the compounds are soluble or insoluble in water. Soluble Insoluble

Which pure substance is composed of more than one element

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1) Which pure substance is composed of more than one element? A. carbonB. goldC. waterD. sodium​

Which energy transformation takes place when using a power drill

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4. Which energy transformation takes place when using a power drill? A. mechanical to chemical В. electrical to mechanical с. chemical to electrical D heat to mechanical

If fluorine 20 undergoes beta decay what will it become

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If fluorine 20 undergoes beta decay , what will it become ?

Draw the missing curved arrow notation for the mechanism below.

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Draw a mechanism for the reaction of the aldehyde with hydronium ion. In the first box, draw any necessary curved arrows. Show the products of the reaction in the second …

What structures allow t cells to locate and destroy invaders

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What structures allow T cells to locate and destroy invaders? O A. Macrophages O B. Pathogens O C. Lymph O D. Antibodies

The amount of substance in a certain volume is its

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The amount of one substance in a certain volume of another substance is called its ____________________.

Which of the following are correct for zero order reactions

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Which of the following are correct for zero-order reactions? A. A higher concentration of reactants will not increase the reaction rate. B. The units for the rate constant and the …

Which of the following elements has the greatest metallic character

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Which of the following Group 15 elements has the greatest metallic character? (1) nitrogen (3) antimony (2) phosphorus (4) bismuth

Dimensional analysis and the crash of flight 143 answer key

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Explain how using dimensional analysis could have prevented this crash

Determine whether each compound is soluble or insoluble in water.

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Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. AgNO3 Pb(C2H3O2)2 KNO3 (NH4)2S

Calculate the molar hcl concentration using your coarse titration results

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Given the results of your coarse titration, how does the concentration of the acetic acid compare to the concentration of sodium hydroxide? a. The acetic acid solution has the same …

How many grams are in 3.3 moles of potassium sulfide

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How many grams are in 3.3 moles of potassium sulfide , k2s

List the metals that form only one type of ion

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List the metals that form only one type of ion (that is, metals whose charge is invariant from one compound to another). What are the group numbers of these metals

An atom of helium-4 differs from an atom of lithium-7

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An atom of helium-4 differs from an atom of lithium-7 in that the atom of helium-4 has?

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