Which atomic model was proposed as a result of J. J. Thomson's work?

A. the plum pudding model

B. the indivisible atom model

C. an atom that had a lot of empty space

D. an atom that had a concentrated nucleus

HW: How do you carry out a flame test?

A chef is serving a lunch special with 1 sandwich and 2 corn cobs per plate. If there are 5 sandwiches and 14 corn cobs, what is the theoretical yield? A. 2plates B. 4plates C. 5plates D. 7plates

During respiration, plant cells release: water oxygen sugar carbon dioxide

A sealed vessel containg helium, chlorine and fluorine has a total pressure of 205 kpa and partial pressures of 15 kpa for chlorine and 89 kpa for fluorine. what is the pressure for helium in kpa

Current passed through a wire loop situated between the poles of a magnet causes the wire to twist. Which of the following devices uses this property to measure the amount of current passing through the wire loop? a. generator b. electric motor c.

Two examples of common items that use chemical change

Which has more mass, a 28.0-cm3 piece of lead or a 16.0-cm3 piece of gold? the density of lead is 11.4 g/cm3; the density of gold is 19.3 g/cm3?

If the body is a city what would it be

What is the empirical formula for a compound that is 29.44/% calcium, 23.55% sulfur, and 47.01% oxygen? This compound is a common ingredient in plaster

Through which medium do sound waves travel most slowly?