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Ulleksa [173]
3 years ago
12

Who discovered that geological changes are cyclical?

Chemistry
1 answer:
stich3 [128]3 years ago
4 0
A. James Hutton

Hope this helps!
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Calculate the mass, in grams, of a single xenon atom (mxe = 131.29 amu ).
Mariana [72]

Answer is 2.18017\times10^{-22}gms.

Explanation: To calculate the mass of 1 Xe-atom , we will require atomic mass of Xe which is 131.29amu.

This atomic mass is the mass of 1 mole of 1 Xe-atom. One mole of Xe-atom is 6.022\times10^{23} atoms of Xe. We will use this relation to convert Mass of Xe-atom into grams.

\frac{\text{mass of 1 atom}}{atom}=\frac{\text{mass of 1 mole of atom}}{6.022\times10^{23}atoms}

\text{mass of 1 atom}=\frac{\text{mass of 1 mole of atom}}{6.022\times10^{23}}

\text{mass of 1 Xe-atom}=\frac{131.29}{6.022\times10^{23}}

\text{mass of 1-Xe atom}=21.8017\times10^{-23}gms

                                               =2.18017\times10^{-22}gms


5 0
3 years ago
What is the empirical formula for the molecular formula given? Molecular formula: C5H12O
Semenov [28]

What is the empirical formula for the molecular formula given? Molecular formula: C5H12O

7 0
1 year ago
A water sample consists of the following cadmium species and their percentages of the total cadmium concentration: Cd2 (36 %); C
Nata [24]

Answer:

61%

Explanation:

Cd2+ and CD(OH)2 both contain the Cd2+ specie which is chemically similar to Zn2+both being in the same group in the periodic table. Cd2+ is know to be toxic when absorbed together with Zn 2+ ions and will definitely be toxic to the aquatic species.

5 0
3 years ago
If a 3 kg moon rock is moved from the moon to the earth does the mass of the rock change
sukhopar [10]

Answer:

No, only the wiehgt, because the gravitational pull on the two, are diffrent. 3kg on the moon may be 6kg here on earth. but in the end, the rock still holds however much rock it held in the begining.

Explanation:

4 0
3 years ago
What is the correct name for CaS04? (a) calcium sulfoxide (b) calcium sulfite (c) calcium sulfur oxide (d) calcium sulfate (e) c
Zielflug [23.3K]

Answer: OPTION, D

Explanation:

It is an example for ionic salt and has Calcium ion and sulfate ion.

Hence it's name is Calcium sulfate.

Calcium sulfoxide does not exist.

Calcium sulfite has CaSO3.

5 0
2 years ago
Read 2 more answers
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