Answer:
Formula and structure: The chemical formula of calcium chloride is CaCl2, and its molar mass is 110.983 g/mol. It is an ionic compound consisting of the calcium cation (Ca2+) and two chlorine anions (Cl-). The bivalent calcium metal forms an ionic bond with two chlorine atoms, as shown below.
Chemical change
Explanation:
Often times, in chemical reactions, a temperature change indicates that a chemical change has occurred.
What is a chemical change?
- It is a kind of change in which new products are formed.
- Chemical changes are usually accompanied by energy changes in reactions.
- The process is not easily reversible.
- It usually involve a change in mass.
- Requires considerable amount of energy
When temperature change occurs, it usually denotes chemical change.
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Answer:
The distance covered when speedwalking for 10 minutes based on the 8 meters trial (assuming a speed of 1 m/s) is 600 meters.
Explanation:
The speed of a body is the distance it covers per unit time when it travels. Its formula is given as; speed = distance/time. Its unit is meters per second as distance is measured in meters while time is measured in seconds.
From this formula, the distance covered by a body travelling with a given speed over a specific time can be determined. Distance = speed × time. This formula applies generally in all cases given the speed of the body and the time it travels.
Speed walking means walking as fast as possible without jogging or running. In this experiment, the speed over the 8 meters trial is not given. However, some assumptions can be made.
Assuming the speed while speedwalking is 1 meters per second; time taken = 10 mins or 10 × 60 seconds = 600 seconds. Distance covered = 1 m/s × 600 s = 600 m
Therefore, the distance covered when speedwalking for 10 minutes based on the 8 meters trial (assuming a speed of 1 m/s) is 600 meters.
Answer:
Product formed is octan-3-one.
Explanation:
is a Gilman reagent. General formula of Gilman reagent is .
Where R is alkyl group or aryl group.
Gilman reagents react with the organo halides to replace halides with alkyl group or aryl group and this reaction is known as Corey–House synthesis.
When hexanoyl chloride is treated with , the chloride group of the hexanoyl chloride is substituted with the ethyl group of the to form octan-3-one with the removal of EtCu and LiCl.
Answer:
A beach forms when waves store sand and rock along the shoreline. A few sea shores are comprised of rocks and stones. After some time, they are moved around smooth by the waves.
Explanation:
A beach is a geologic arrangement that is situated along a huge waterway, including lakes, streams, and seas. Sea shores are described by the presence of small bits of natural silt. The dregs might be made out of sand, rock, shell, green growth, or stones. Normal sea shores may take a large number of years to advance, a cycle that is the consequence of continually moving water that disintegrates the land situated around its edge. Basically, rocks or coral reefs situated off the shore are worn out by moving waves. Moreover, streams and rainwaters may dissolve rocks found further inland. These dregs are stored along the coastline, framing a sea shore.