Which scientist provided a foundation for John Dalton's work on the atomic structure?

A. Robert Millikan

B. Joseph Proust

C. Ernest Rutherford

D. J. J. Thomson

What is the maximum mass of ethyl alcohol you could boil with 1000 j of heat, starting from 22 ∘c?

How many moles are in 15.0 g of copper (ii) sulfate?

Complete el crucigrama sobre conceptos del agua. Horizontal 1. Cuando aumentano disminuyen el agua cambla de estado. 5. Ejemplos: hielo, nieve, granizo. 7. Contiene poca o muy poca sal. 8. Ejemplo: Vapor que sale de las aguas termales. 13.

onsider the reversible dissolution of lead (II) chloride. P b C l 2 (s) - ⇀ ↽ - P b 2 + (a q) + 2 C l - (a q) PbClX2 (s) ↽--⇀PbX2 + (aq) + 2ClX - (aq) Suppose you add 0.2393 g of P b C l 2 (s) PbClX2 (s) to 50.0 mL of water.

Mg3 (Si2O5) 2 (OH) 2 There are. 0893 moles of magnesium how many moles of silicon are there in the sample?

Identify the element that chlorine forms a covalent bond with

A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?