Which kind of electrical charge is found on a hydrogen atom. of a polar water molecule?
a: a positive charge caused by a covalent bond with oxygen
b: a negative charge caused by a covalent bond with oxygen
c: a negative charge caused by an ionic bond with oxygen
d: a positive charge caused by an ionic bond with oxygen

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

The response is the basis for vaccination. primary secondary tertiary none of the above

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=