What occurs when an atom loses an electron?
(1) the atom’s radius decreases and the atom becomes a negative ion.
(2) the atom’s radius decreases and the atom becomes a positive ion.
(3) the atom’s radius increases and the atom becomes a negative ion.
(4) the atom’s radius increases and the atom becomes a positive ion.

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

Which element is the least metallic between cadmium, silver, zinc, or iron?

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]