Questions in chemistry

Questions in chemistry

[Done] What is 1500 in scientific notation?

[Done] If solution A has twice as much solute as solution B, is it possible for the solutions to have the same concentration?

[Done] How many minutes are there in an average lifetime of 70.0 years? Assume that [tex]1 \, \text{yr} = 365.25 \, \text{days}[/tex].

[Done] What are the metal strips called that are inside the copper compound solution?

[Done] Balance the chemical equation: \[ \text{Cu} + \text{AgNO}_3 \rightarrow \text{Cu(NO}_3)_2 + \text{Ag} \]

[Done] Is NH₃ a molecular crystal, metal, ionic crystal, or a network solid?

[Done] Explain why neon is monatomic but chlorine is diatomic.

[Done] If you were going to try to get the noble gas argon to combine with another element, would fluorine be a good choice?

[Done] How are chemical and physical changes alike?

[Done] A substance changes from a solid to a liquid at its boiling point. True or False?