Which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? (5 points)
H−

OH−

H2O+

H3O+

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which of these is a physical property

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device