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kifflom [539]
3 years ago
14

TRUE OR FALSE Two organisms that have different physical characteristics must be of a different species. True False

Chemistry
1 answer:
Paul [167]3 years ago
3 0

Answer: False

Explanation:

Phenotype of an organism refers to the observed physical characteristics of an organism. The genotype of the organism is the sum total of the genetic composition of an individual organism.

Having different physical appearance does not really mean that organisms are different species because the expression of genes depends on the environment of the organism. The interaction of the genes in the organism with the environment produces different phenotypes of the same organism.

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the chemical compound C2F4 is used to make PTEE (Teflon). How manyC2F4 molecules are in 485 kilograms of this material?
monitta

Answer:

molecules=2.92x10^{27}moleculesC_2F_4

Explanation:

Hello,

In this case, we use the Avogadro's number to compute the molecules of C2F4 whose molar mass is 100 g/mol contained in a 485-kg sample as shown below:

molecules=485kgC_2F_4*\frac{1000gC_2F_4}{1kgC_2F_4} *\frac{1molC_2F_4}{100gC_2F_4}*\frac{6.022x10^{23}molecules C_2F_4}{1molC_2F_4}  \\\\molecules=2.92x10^{27}moleculesC_2F_4

Best regards,

5 0
4 years ago
You put two pots of water on the stove to boil. Both pots are the same size and are on the same size burner at the same heat set
storchak [24]

Answer:

The emptiest one.

Explanation:

The more water, the more heat molucules have to turn to boil.

Have a great day!

Hope I helped and it would be greatly appreciated if you could be considerate and give brainliest.

6 0
3 years ago
If Ca+2 would react with F-1, what do you predict to be the formula
ollegr [7]
It would be CaF2 because you will need to balance then so since F is -1 it'll need another one to balance with Ca +2
3 0
3 years ago
What is the mass of oxygen in 3.34 g of potassium permanganate?
3241004551 [841]

Answer:

1.35 g

Explanation:

Data Given:

mass of Potassium Permagnate (KMnO₄) = 3.34 g

Mass of Oxygen: ?

Solution:

First find the percentage composition of Oxygen in Potassium Permagnate (KMnO₄)

So,

Molar Mass of KMnO₄ = 39 + 55 + 4(16)

Molar Mass of KMnO₄ = 158 g/mol

Calculate the mole percent composition of  Oxygen in Potassium Permagnate (KMnO₄).

Mass contributed by Oxygen (O) = 4 (16) = 64 g

Since the percentage of compound is 100

So,

                        Percent of Oxygen (O) = 64 / 158 x 100

                        Percent of Oxygen (O) = 40.5 %

It means that for ever gram of Potassium Permagnate (KMnO₄) there is 0.405 g of Oxygen (O) is present.

So,

for the 3.34 grams of Potassium Permagnate (KMnO₄) the mass of Oxygen will be

                  mass of Oxygen (O) = 0.405 x 3.34 g

                  mass of Oxygen (O) = 1.35 g

5 0
4 years ago
What is Gram Atomic mass ?​
KIM [24]

Answer:

Gram atomic mass of an element can be defined as the mass of one mole of atoms of a particular element. It is numerically equivalent to the value of the element's atomic mass unit but has its unit in grams.

5 0
3 years ago
Read 2 more answers
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