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2 years ago

Can someone help me answer these 2 questions

Chemistry

1 answer:

SSSSS [86.1K]2 years ago

4 0

The Water Biome has The most biodiversity. The Desert is diffrent from the Tundra Tundra and deserts both face a scarcity in water. Therefore, the vegetation found in either biome are adapted to live in such water-barren environments. The vegetation of the tundra is also resistant to cold temperatures and winds. ... Many succulents are found in a hot and dry desert.

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How do u separate salt from rock salt?

Shalnov [3]

In order to separate salt from rock salt, first crush the salt rock into small pieces, put it in a container and add water. Stir until it dissolves. Pour the solution to a funnel lined with coffee filter. Heat the filtered water and the water will evaporate leaving salt behind.

7 0

2 years ago

Convert 26.02 x 1023 molecules of C2H8 to grams. Round your answer to the hundredths place.

Akimi4 [234]

No of molecules=26.02×10²³molecules

No of moles

26.02×10²³/6.023×10²³
4.3mol

Molar mass

C2H8
2(12)+8(1)
24+8
32g/mol

Mass

Moles×Molar mass
32(4.3)
137.6g

6 0

1 year ago

3) A solution contains 61.3 moles of KC103 in 0.25 L of solution. What is the

marissa [1.9K]

Answer:

The molarity of the solution is 245, 2M.

Explanation:

We calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case KCl03) in 1000ml of solution (1 liter):

0,25 L solution----- 61,3 moles of KCl03

1 L solution----x= (1 L solution x 61,3 moles of KCl03)/0,25 L solution

x=245, 2 moles of KCl03 --> The molarity of the solution is 245, 2M

6 0

2 years ago

Fe,0, is an example of

Amiraneli [1.4K]

Answer:

it is the example of molecules

7 0

2 years ago

Identify each section of the periodic table. metals nonmetals metalloids

Len [333]

Answer:

i added this table for some help

Explanation:

here are some examples

metals:They are hard and shiny, strong, and easy to shape. They are used for many industrial purposes. This group includes iron, gold, silver, chromium, nickel, and copper, some of which are also noble metals.

non-metals:a chemical element (as boron, carbon, or nitrogen) that lacks the characteristics of a metal and that is able to form anions, acidic oxides, acids, and stable compounds with hydrogen.

metalloids:Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. Metalloids have mixed properties which are difficult to characterize.

8 0

2 years ago

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