If 4.00 L of a gas are collected in a sealed, rigid container at 49.0 °C, the pressure is 103.0 kPa. What would the pressure of the gas be at standard temperature? 87.3 kPa
121.5 kPa
21.8 kPa
101.3 kPa

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6