When a soda can is opened and produces a fizzing sound and carbon dioxide bubbles, is it a physical or chemical change?

What does it mean for a cell to be specialized?

Which element is humus especially rich in? oxygen carbon nitrogen or tungsten

air is made up of mostly O2, N2 and CO2. if the total pressure of the air is 765 mmhg and P (n2) = 600 mmHg and P (CO2) = 38 mmHg then what is the partial pressure of the O2?

Oxygen gas generated in an experiment is collected at 25.0°C in a bottle inverted in a trough of water. The total pressure is 1.000 atm corrected for atmospheric pressure.

What is the average translational kinetic energy per atom for nitrogen atoms (not N2) in a gas of nitrogen at atmospheric pressure at a temperature of 81 ∘C?

Is calcium carbonate a compound element or mixture?

Why do covalent bonds not involve the transfer of electrons

Originally, the periodic table was arranged by increasing atomic radius increasing atomic mass increasing atomic number increasing number of electrons

How many moles are in 15.5-g SiO2

Is Oxygen - O2 a pure substance or a mixture?