Questions tagged 'Inventions & Discoveries'
31 questions
Complete and balance the following metallurgical reactions. Phases are optional.?
I need assistance in completing and balancing the following metallurgical reactions. The reactions are as follows: MoO3(s) + H2(g) → ? Ag2S(s) + O2(g) → ? I am unsure how to approach these reaction...
Jan 26, 2025
Color of complex Chromium (III) solution?
What color is most commonly associated with each of the following Chromium (III) complex ion solutions: [Cr(H2O)6]3+, [Cr(NH3)6]3+, and [Cr(H2O)4Cl2]+? Please explain the reasoning behind your conclus...
2 chemistry questions. please help?
What is the monomer used as the building block of polyethylene? a. Ethane b. Ethene c. Monoethane d. Amino acid What occurs during a condensation reaction? a. Head-to-tail joining...
If equal masses of the following compounds undergo complete combustion, which will yield the greatest mass of CO2?
If equal masses of the following compounds undergo complete combustion, which compound will produce the greatest mass of carbon dioxide (CO2)?
can someone explain why copper (I) Iodate is CUIO3 rather than CUIO2? I dont get it?
I would appreciate it if someone could explain why copper(I) iodate is represented as Cu(IO₃) rather than Cu(IO₂). I understand that iodate is an oxyacid, but how can I determine that it has a 3- rath...
Can someone help write a net ionic equation?
Could someone assist me in writing a net ionic equation? I need to write a balanced net ionic equation for the reaction between silver nitrate (AgNO3) in aqueous solution and potassium bromide (KBr) i...
Jan 01, 2025
A 2.000 g sample of an unknown metal, M, was completely burned in excess?
A 2.000 g sample of an unknown metal, M, was completely burned in excess oxygen (O2), resulting in the formation of 0.02224 mol of the metal oxide, M2O3. What is the identity of the metal?
2 C6H14 + 19 O2 –> 12 CO2 + 14 H2O
What is the balanced chemical equation for the combustion of hexane (C6H14) in the presence of oxygen (O2), resulting in the formation of carbon dioxide (CO2) and water (H2O)? The equation is as follo...
13. The chemical formula Ga2O3 indicates?
The chemical formula Ga2O3 indicates which of the following? 1. None of these 2. Six atoms of each element 3. Two atoms of gallium and three atoms of oxygen 4. Five atoms of each element 5. Three atom...
Iron ions with an oxidation state of +3 are bonded to ions of sulfur. How many iron ions are in this compound?
Iron ions with an oxidation state of +3 are bonded to sulfur ions. How many iron ions are present in this compound?