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Whitepunk [10]
2 years ago
14

Help please science (7th grade)

Chemistry
2 answers:
hoa [83]2 years ago
8 0

Answer:

17

Explanation:

Don't mind the random letters

bshsujsjjdjd

tiny-mole [99]2 years ago
8 0

Answer:

18

Explanation:

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How many atoms of carbon (C,12.01 g/mol) are in a diamond with a mass of 0.568 g?
Fantom [35]

2.85 × 10^22. A diamond with a mass of 0.568 g contains

2.85 × 10^22 atoms C.

Diamond is a form of pure carbon.

a) Convert <em>grams of C to moles of C</em>

Moles of C = 0.568 g C × (1 mol C/12.01 g C) = 0.047 29 mol C

b) Convert <em>moles of C to atoms of C </em>

Atoms of C = 0.047 29 mol C × (6.022 × 10^23 atoms C)/(1 mol C)

= 2.85 × 10^22 atoms C

5 0
3 years ago
Which choice represents a compound?Required to answer. Single choice.
Citrus2011 [14]

Answer:

CO

Explanation:

Elements will only one capital letter, that may/may not have a lower case letter after it. CO has a capital letter followed by another capital, so it's a compound

8 0
3 years ago
HELP! <br><br>How many moles of a solute would 3 liters of a 2-molar solution contain? ​
katrin [286]

Answer: If it was 3 mol of solute in 2 L of solution it would be 1.5 mol/L.

However when the solute dissolves in the water creating the solution, the volume increases. So 3 mol of solute in 2 L of water creates more than 2 L of solution.

The correct method for making a 3 mol/L solution would be to place some water into a two liter volume container. Dissolve all 3 mol of the solute into the water. Then add water to the 2 L mark. Now there is 3 mol of solute and 2 L of solution.

Explanation: I hope this helps XDDDD

8 0
2 years ago
The reaction ag+(aq) + cl−(aq) ↔ agcl(s) has an equilibrium of 1020 (keq = 1020). if you have a beaker containing 1 liter of wat
lord [1]
When Q is equal the initial concentration of the products / the initial concentration of the reactants. 

so, Q = [Ag]*[Cl-]  and we neglected [AgCl] as it is solid

∴ Q = 10^-6 * 10^-5 

       = 10^-11 

now we will compare the value of Q with the value of Keq:

when Q = Keq so, the system is in equilibrium

and when Q > Keq so, the reaction will go forward (shift to right) to achieve equilibrium.

and when Q< Keq so, the reaction will go left (shift to left) to achieve equilibrium.

when Q = 10^-11 and Keq = 10^20

∴Q< Keq 

and the reaction will shift to left.
3 0
3 years ago
I have to draw a diagram of the ingredient's particles in a pancake. E.g milk eggs etc the diagram must include what the particl
Lerok [7]
When pancakes are being cooked they get stuck to each other <span><span>piece,</span> in the pancake an get more tangled up</span>

4 0
2 years ago
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