Agas is sealed in a bottle at 25°c and 1.50 atm pressure. how must the storage conditions be changed to bring the gas to standard temperature and pressure (stp)? increase the temperature by 25°c and decrease the pressure by 0.514 atm. keep the temperature the same and increase the pressure by 98.5 atm. decrease the temperature by 25°c and decrease the pressure by 0.500 atm.

Decrease the temperature by 25°C and decrease the pressure by 0.500 atm.

Explanation:

STP stands for standard temperature and pressure conditions.

STP is defined as a temperature of   and an absolute pressure of exactly 1 atm.

Thus in order for a gas sealed in bottle at and 1.50 atmosphere to bring to STP , the temperature must be decreased by and pressure must be decreased by 0.5 atm to make it and 1 atmosphere respectively.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms