Hydrogen bonds differ from covalent bonds. Hydrogen bonds form due to the positive charge of a molecule being attracted to the negative charge of a water molecule.
This is due to water being a polar substance. Polar substances have covalent bonds where the electrons are shared unequally. This creates a slight charge at each end of the molecule. This charge is what creates a hydrogen bond between a water molecule and another molecule. Hydrogen bonds are weaker than covalent bonds.
The solution is B.
answer: a virus does not grow.
Explanation:
Answer:
Dependent variable: What you're measuring.
Independent variable: The variable the researcher is changing.
Controlled variable: The variable that is being used as an example that is not being experimented on. It is kept the same throughout the whole experiment.
Explanation:
Answer:
The correct answer is - Altimeter.
Explanation:
An altimeter is a sensor that is present in the new Fitbit. Altimeter measures changes in air pressure or barometric pressure. This sensor is used to count floors and use each 10 feet elevation as one floor.
Altimeter shows reading by the pressure of the air and every time the air pressure increases altitude is decreases and if air pressure decreases there is an elevation in altitude from sea level.
