Who proposed that the atom had a positivley charged nucleus as its center

Would precipitation occur when 500 ml of a 0.02 m solution of agno3 is mixed with 500ml of a 0.001M solution of nacl? explain

Match the three phases of matter. 1. fixed volume; variable shape gas 2. fixed volume; fixed shape liquid 3. variable volume; variable shape solid

The bubbles that make a baked cake light and tender come from the decomposition of carbonic acid (H2CO3) in the cake batter. Which are the likely products of this reaction?

A ray in the emission spectrum has a wavelength of 3.10 x 1014 meters. Given that the speed of light is 2.998 x 108 m/s, what is the frequency of the ray?

Give an element it is used as fuel in nuclear reactors

Cual es la función de los lípidos?

Butane - ethane - methane - propane: What do these hydrocarbons have in common? A) The same number of carbons present. B) They all have polar covalent bonds. C) They all have single covalent bonds. D) They have the same structural formulas.

Identify the form of energy that is converted into ther - mal energy by your body

Determine the number of moles of sulfur trioxide produced when 3.5 moles of oxygen gas is consumed in the reaction

For each of the following balanced oxidation-reduction reactions, (i) identify the oxidation numbers for all the elements in the reactants and products and (ii) state the total number of electrons transferred in each reaction. 1.