Chemistry Questions
Explore questions in the Chemistry category that you can ask Spark.E!
something that can be separated physically
graft and block copolymers may have ____ properties that are not ___ to those of corresponding homopolymers
something that is good at conducting electricity
The van der Waals equation corrects the ideal gas law for the finite volume and ________ of gas molecules.
The main component of air is oxygen.
share some characteristics with metals and nonmetals
According to the kinetic-molecular theory, molecules of different gases at the same temperature always have the same average kinetic energy.
A gas is considered "ideal" if one mole of it in a one-liter container exerts a pressure of exactly 1 atm at room temperature.
If the temperature is lowered from 60 °C to 30 °C, the volume of a fixed amount of gas will be one half the original volume.
At electrical synapses, which type of junction exists between the two cells?
The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at 1.62 atm and 62.0 °C is ________ L.
What happens to the concentration of neurotransmitter in the synaptic cleft when the frequency of action potentials increases in the presynaptic neuron?
The temperature and pressure specified by STP are ________ °C and ________ atm.
How many molecules are there in 4.00 L of oxygen gas at 500 °C and 50.0 torr?
The EPSPs from two different synapses occur at the same time and cause a larger depolarization than either one alone cause. This is an example of
When the opening of ion channels allows both sodium and potassium ions to move through, no change in membrane potential occurs because sodium moves into the cell and potassium moves out of the cell. (true/false)
A substance that reduces the hydrogen ion concentration of a solution is __________.
__________ is an emergent property of water that allows insects like the raft spider to walk on water.
A compound composed of a metal and non metal element is considered
Many mammals control their body temperature by sweating. Which property of water is most directly responsible for the ability of sweat to lower body temperature?