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Juli2301 [7.4K]
3 years ago
5

Which of these elements are you least likely to find in nature as a pure element (that is, not combined with any other elements

in a compound)? Use the periodic table to answer the question. gold (Au) oxygen (O) argon (Ar) sodium (Na)
Chemistry
2 answers:
Delvig [45]3 years ago
7 0
The answer is sodium (Na)

<em>Let me know if u have anymore questions ☺</em>
Pani-rosa [81]3 years ago
7 0

Answer: sodium Na

Explanation:

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Which of the following is not an element that makes up all living organisms?
Bess [88]

Answer: Rubidium is correct

Explanation: The six most common elements in living things are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. Atoms of these elements combine and form thousands of large molecules. These large molecules make up the structures of cells and carry out many processes essential to life.

8 0
3 years ago
El plomo y el yodo forman dos compuestos. En uno, el porcentaje de en masa de plomo es del 44,94% y en el otro es de 62,02%. Cal
nikdorinn [45]

Answer:

0.8162 gramos de plomo por gramo de yodo

1.633 gramos de plomo por gramo de yodo

Explanation:

Asumiendo una base de 100 gramos para cada compuesto:

Primer compuesto:

Gramos plomo: 44.94g

Gramos de yodo: 100-44.94g = 55.06g

Así, la masa de plomo por gramos de yodo para el primer compuesto es:

44.94g plomo / 55.06g Yodo =

<em>0.8162 gramos de plomo por gramo de yodo</em>

<em></em>

Segundo compuesto:

Gramos plomo: 62.02g

Gramos de yodo: 100-62.02g = 37.98g

La masa de plomo por gramos de yodo para el segundo compuesto es:

62.02g plomo / 37.98g Yodo =

<em>1.633 gramos de plomo por gramo de yodo</em>

8 0
3 years ago
The number of _____ determines which element it is.
Alenkasestr [34]
<span>electrons hope this helps</span>
5 0
3 years ago
Why are there more fossils of marine organism than of land organisms o dc
MatroZZZ [7]

Answer:

Three primary reasons. First, there is simply more water-covered places than dry ground places for the animals and plants to have lived. Second, the seas are much more crowded with the kinds of life that leave fossils than the land is. Third, the process that form fossils work very well under water.

Explanation:

4 0
3 years ago
What is the molar mass of <br> C4H9, 114.17 g/mol
mihalych1998 [28]

Answer:

4 x 12 +9 x 1= 56

Explanation:

I do not know what the 114.17 g/mol comes from

6 0
3 years ago
Read 2 more answers
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