A20.0g sample of mercury(ii) oxide (hgo, m = 216.6) is heated strongly, causing it to decompose to metallic hg and o2 gas. what volume of o2 gas is produced( measured at stp)
(a) 1.03l (b) 2.07l (c) 4.14l (d) 14.0l
when 30.0 ml of 0.10 m agno3 is added to 30.0 ml of 0.10 m nacl, aqueous nano3 and solid agcl are formed. how much solid agcl is produced?
(a) 0.003 mol (b) 0.0060 (c) 0.030 mol (d) 0.060

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation: