The formula for hydrocarbon is CnH(2n+2).
Answer:
The Chesapeake Bay watershed continues to develop as population in the region grows. Development and urbanization at the cost of natural landscapes can lead to increased pollution of nutrients and sediment to the Bay, especially from stormwater runoff.
Explanation:
Answer:
C. to explore the composition of Mars
Explanation:
Initially, in 2019, an unmanned mission is planned to orbit the moon. The spacecraft would flyby the moon. In 2020's, the Exploration Mission 2 would be a manned mission on the same path around the moon. This would be the base for future goal of collecting samples from mars. In later of 2020's unmanned spacecraft would be sent to mars and a robot would collect the samples from the Martian surface. In 2030's, a crew would be sent to Mars.
The answer is C.204.0g
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Answer: Cesium chloride dissolves in pure water has > 0.
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
is positive when randomness increases and is negative when randomness decreases.
a)
As 2 moles of gas are converting to 1 mole of gas and 1 mole of liquid, the randomness decreases and hence is negative.
b)
As gas molecules are converting into aqueous and liquid form, the randomness decreases and hence is negative.
c) lithium fluoride forms from its elements:
As elements are combining to form a compound, the randomness decreases and hence is negative.
d) Cesium chloride dissolves in pure water :
As compound is dissociating into ions, the randomness increases and hence is positive.