Which is the scientific notation for 8,002.5 seg?

Which substance would require 511 cal of heat to raise the temperature of a 125 g sample from 22.5°C to 68.8°C? A. aluminum B. brass C. copper D. platinum

A certain atom has an [noble gas] 5s24d105p4 electron configuration. which element is it?

7. What causes pressure in a closed container of gas?

What is the change in heat energy when 125g of water at 10.0oC is raised to 0°C?

Which energy changes takes place when gasoline evaporates from a fuel gas can

The liquid substances mercury (density = 13.6 g/ml), water (1.00 g/ml), and cyclohexane (0.778 g/ml) do not form a solution when mixed, but separate in distinct layers. list how the liquids would position themselves in a test tube.

What element is used to make expensive forks spoons and tableware?

What is the mass number of an atom of 5 protons and 7 nuetrons

Okay so I'm trying to understand something for my CER. I did a lab on objects that have an equal mass but volume and density vary. Now I need to defend why the volume increased and the density decreased.

A flask contains 0.83mol of neon gas at a temperature of 35°C. The pressure gauge indicates 0.37atm inside the flask. What is the volume of the neon gas?