Read the following description of the element zinc and indicate which are physical properties and which are chemical properties. (a) zinc melts at 420 ∘c. (b) when zinc granules are added to dilute sulfuric acid, hydrogen is given off and the metal dissolves. (c) zinc has a hardness on the mohs scale of 2.5 and a density of 7.13 g/cm3 at 25 ∘c. (d) it reacts slowly with oxygen gas at elevated temperatures to form zinc oxide, zno.

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors