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3 years ago

Round the nearseat whole number how many neutrons on average are in atom of osmium?

Chemistry

1 answer:

Anettt [7]3 years ago

7 0

Answer:

jdjdjdhjxjxjchxjxjkxjxjxhxnxkjcjcjcj

Explanation:

sorry i just need point lolllllllllll

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What are two ways that scientists u measure temperature

anygoal [31]

Using the same anchor points, he determined the freezing temperature for water to be 0 degree and the boiling temperature 100 degrees. The Celsius scale is known as a Universal System Unit. It is used throughout science and in most countries.

8 0

3 years ago

What is true of all eukaryotic organisms?

Basile [38]

Answer:

They are multicelled

Explanation:

I just did a quiz on it UwU

4 0

3 years ago

) If you started with 2.3182 g of 3-nitrophthalic acid and had a 93% yield of 3-nitrophthalhydrazide, how many grams of 3-nitrop

MArishka [77]

Answer: 1.8124 g of 3-nitrophthalhydrazide were recovered.

Explanation:

The balanced chemical reaction will be :

$C_8H_5NO_6+N_2H_4\rightarrow C_8H_5N_3O_4+2H_2O$

moles of 3-nitrophthalic acid = $\frac{\text {given mass}}{\text {molar mass}}=\frac{2.3182g}{211.13g/mol}=0.0110mol$

As 1 mole of 3-nitrophthalic acid gives = 1 mole of 3-nitrophthalhydrazide

0.0110 moles of 3-nitrophthalic acid gives = $\frac{1}{1}\times 0.0110=0.0110$ mole of 3-nitrophthalhydrazide

mass of 3-nitrophthalhydrazide = $moles\times {\text {molar mass}}=0.0110mol\times 177.16g/mol=1.9488g$

As the percentage yield is 93% , the mass of 3-nitrophthalhydrazide recovered = $\frac{1.9488\times 93}{100}=1.8124g$

Therefore 1.8124 g of 3-nitrophthalhydrazide were recovered.

4 0

3 years ago

This group of elements contains brittle solids at room temperature. They

Natalija [7]

non-metals

they don't conduct heat

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3 years ago

What is the best reason for the difference in properties of LiCL and C6H14O

statuscvo [17]

The substances have different atomic masses, one is organic and one is inorganic, and Cl and Oxygen belong to different groups. There are more differences but these are the most basic ones.

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3 years ago