What evidence caused Rutherford to change Thomson plum pudding model into the nuclear model

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes?

If a copper atom loses two electrons, the name of the copper ion is: copper (I) ion copper (II) ion cupride ion copper ion

Which is not an example of a state change? wood burning in a fire. water turning to steam. gold melting. carbon dioxide freezing into dry ice?

In what type of organism and what location in that organism does photosynthesis generally occur?

What does the sign + mean in a chemical equation?

How many particles are in 1 mole of a substance?

Initially you dissolved all, or most, of the p-aminobenzoic acid in ethanol. then you slowly added sulfuric acid. as you did this, a large amount of white solid formed. during the course of the reaction, that white solid dissolved.

How do you know if a chemical reaction has occurred?

Why must a container or system be closed for equilibrium to be established?

What is the bond angle between the hydrogen atoms in an ammonia (NH₃) molecule?