Balance the equation to show the reaction between H2SO4 and cu(OH)2

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

The compound methyl butanoate smells like apples. its percent composition is 58.8% c, 9.9% h, and 31.4% o. what’s the empirical formula ?

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?