Question

Pick any TWO explorers from any time period and analyze and discuss the impact and achievements of the two explorers.

Answer 1

Answer:

Question:

Which one of the following household substances found in the house will form a precipitate with an aqueous solution of barium chloride: baking soda, household ammonia, table salt, epsom salt, bleach.

Chemistry in Everyday Life:

Almost everything around us is a chemical substance and is made up of elements and compounds. A lot of household substances found in the house, such as baking soda, household ammonia, table salt, Epsom salt, bleach are chemical substances.

Answer and Explanation:

Baking soda, household ammonia, Epsom salt, and bleach will form a precipitate with an aqueous solution of barium chloride.

The chemical formula of baking soda is NaHCO

3

that reacts with barium chloride to form barium carbonate precipitate(as one of the products) as it is insoluble in water.

The chemical formula of the household ammonia is NH

3

that reacts with barium chloride to form nitrogen trichloride precipitate(as one of the products) as it is insoluble in water.

The chemical formula of Epsom salt is MgSO

4

that reacts with barium chloride to form barium sulfate precipitate(as one of the products) as it is insoluble in water.

The chemical formula of bleach is CaOCl that reacts with barium chloride to form barium chlorate precipitate(as one of the products) as it is insoluble in water.

help you a lot..✌️✌️✌️

Answer 2

1. Edmund Hillary- He and Tenzing Norgay became the first-ever, climbers confirmed to have reached the summit of Mount Everest on 29 May 1953. Since then, innovative people, with high self-confidence and risk-takers climb the Mount Everest.

2. Pilatre De Rozier- On September 19, 1783 Pilatre De Rozier, a scientist, launched the first hot air balloon called 'Aerostat Reveillon'. The passengers were a sheep, a duck and a rooster and the balloon stayed in the air for a total of 15 minutes before crashing back to the ground. People nowadays ride in the for air balloon in the quiet morning or afternoons to enjoy the country view. Got air balloons were also used for war reconnaissance, in 1794, during the Battle of Fleurus in the French Revolution, a balloon called Entreprenant was flown for aerial observation to suss out enemy positions during combat. The balloon, which was tethered, flew for 9 hours.

Hope this helps you ☺️
Have a nice day