Chemistry, 28.09.2019 02:10 Sylnatius6736
4. al2o3 (s) + 6hcl (aq) → 2alcl3 (aq) + 3h20(1) find the mass of alcl3 that is produced when 10.0 grams of al2o3 react with 10.0 g of hci moar mass alqo3 102 gm imol al2o3 = 0.098 moles molar mass of hcl = 36, 5gr/mol #of moles #6l =0,274 moles mole of al2 oz 6 mol of hc 01274 x2 = 0.0913 moles alc3=13,5 6 i mass alco3 = 12, 193gm. 5. how many grams of the excess reagent in question 4 are left over?
Answers: 2
Chemistry, 22.06.2019 12:00
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 22.06.2019 17:00
Complete each row of the table below by filling in the missing prefix or missing exponent.
Answers: 1
Chemistry, 23.06.2019 01:00
What type of chemical bond is formed between two atoms of bromine 1. metallic 2. hydrogen 3. ionic 4. covalent
Answers: 1
4. al2o3 (s) + 6hcl (aq) → 2alcl3 (aq) + 3h20(1) find the mass of alcl3 that is produced when 10.0 g...
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