write the Nobel gas configuration for bromine. You do not need to use subscripts

Drag the compound names from the list and drop them into the appropriate buckets for ionic or molecular compounds. Provide your answer below: Give detailed Solution with explanation needed. don't give Handwritten answer Ionic Molecular sodium peroxide rubidium phosphate sulfur trioxide carbon dioxide potassium carbonate sodium sulfide lithium sulfate hydrogen iodide potassium hydride diphosphorous pentoxide hydrogen sulfide hydrogen peroxide potassium iodide

using the equations provided, please help me figure out which of them goes to which problems which have also been provided

List the seven diatomic elements. Give their names and symbols.

Hydrazine, N2H4, can be used as fuel to orient and maneuver spacecraft. The energy used to do so is obtained by reacting the hydrazine with dinitrogen tetroxide to form nitrogen gas and water vapor. Write and balance the chemical equation for this reaction.The spy satellite US-193 had 453 kg of hydrazine on board when it was destroyed. What mass of dinitrogen tetroxide would have had to be on board in order to completely react with the hydrazine? This reaction is a redox reaction. Assign oxidation states to each atom in the reaction,identify what is oxidized, what is reduced, the oxidizing agent, and the reducing agent. Answer in full please.

Consider these compounds: А. СоСОз В. AдBr C. Fe2S3 D. Caз(РOд)2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that barium phosphate is more soluble than and barium phosphate is less soluble than It is not possible to determine whether barium phosphate is more or less soluble than by simply comparing Ksp values.

Why do you think the helium atoms repel each other? (be sure to include descriptions of relevant subatomic particles and forces.)

Why do you think the helium atoms approach each other? be sure to include descriptions of relevant subatomic particles and forces.)

Order the theories from oldest to most recent. START ORDER Atoms consist of mostly empty space with a dense nucleus of positive charge. Atoms are tiny indivisible particles that make up all matter. Electrons occupy specific energy levels surrounding a positively charged nucleus. Electrons move about a positively charged nucleus in clouds that are defined by probabilities. Negatively charged electrons are embedded in a mass of positive charge. END ORDER