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Anni [7]
3 years ago
15

Classify the following statements as observation, inference, prediction, measuring or classifying

Chemistry
1 answer:
alina1380 [7]3 years ago
3 0

Answer:

ggghy I am a great and the other hand the wildcats their own is the name of the

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Atoms of which of the following elements have the smallest atomic radius?
Ad libitum [116K]

Answer:

The answer is helium, I hope this is helpful :)

7 0
3 years ago
WILL GIVE BRAINLIEST (also pls don't copy answers from other ppl :D) Question: Choose two spheres of Earth which interact when h
den301095 [7]

Answer:

Geosphere and Hydrosphere.

Explanation:

Hot springs are heated by geothermal heat—heat from the Earth's interior. In volcanic areas, water may come into contact with very hot rock heated by magma. The geosphere and hydrosphere interact when hot springs form. The geosphere gets a little melted by the hot hydrosphere and then when the springs shoot up in the air they break some rocks.

7 0
2 years ago
For the reactions system 2H2(g) + S2(g) 2H2S(g), a 1.00 liter vessel is found to contain 0.50 moles of H2, 0.020 moles of S2, an
Ne4ueva [31]

Answer:

K = 9.4 *10^5

The reaction favor product formation

Explanation:

Equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium. Also it is defined as the ratio of the product of concentration of products to the product of concentration of reactants each term raised to power equal their stochiometric coefficients.  

so, for the reaction,

  • 2H₂ ₍g₎ + S₂ ₍g₎  → 2H₂S ₍g₎

The equilibrium constant can be expressed as following:

K_{eq}=\frac{[H_2S]^2}{H_2]^2\times [S_2]}

where  concentration of reactants and products is expressed in molarity Molarity=(no of moles/ Volume L)

So,

[H₂] = (0.50 mol / 1 L) = 0.50 M

[S₂] = (0.02 mol / 1 L) = 0.020 M

[H₂S] = (68.5 mol / 1 L) = 68.5 M

∴ K_{eq}=\frac{[68.5]^2}{0.50]^2\times [0.020]}=9.4*10^5

As the value of K is greater than 1, the reaction favor product formation.

4 0
3 years ago
Read 2 more answers
How many moles are in 5g of Na2CO3? <br>a) 0.047<br>b) 1<br>c) 2<br>d)21.2​
stepladder [879]

Answer:

0.047

Explanation:

Data : 5g , Na2CO3

Formula:

Molecular mass of Na2Co3 = no.of atomic mass x no. of atom

moles = mass÷ molecular mass

molecular mass = 2(23)+1(12)+3(16)

=106amu

moles = 5÷106

= 0.047 Ans:

5 0
4 years ago
What is true about the dilution of a solution?
Ulleksa [173]
The amount of solvent increases, since the solvent is the one diluting the solution, the more you want your solution diluted, the more of solvent you'd use. :)
4 0
4 years ago
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