8th grade - Science - Unit II

Separation of electric charge leading to a molecular or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.

• electronegativity

• polarity

• positivity

Chemical property that describes the tendency of an atom to or a functional group to attract electrons towards itself.

• electrons

• electricity

• electronegativity

They have at least 2 things in common: size or magnitud, and units of measurement.

• Physical quantities

• Mathematical quantities

• Quantities

What is the unit used to measure LENGHT?

• a = amperes

• kg = kilograms

• m = meters

What is the unit used to measure ELECTRICITY?

• a = amperes

• kg = kilograms

• m = meters

What is the unit used to measure AMOUNT OF SUBSTANCE?

• k = kelvin

• mol

• cd = candela

What is the unit used to measure TEMPERATURE?

• k = kelvin

• mol

• cd = candela

What is the unit used to measure TIME?

• s = seconds

• a = ampere

• cd = candela

What is the unit used to measure LIGHT?

• s = seconds

• a = ampere

• cd = candela

What is the unit used to measure MASS?

• kg = kilograms

• m = meters

• mol