Answer:
squeezing syringes contain gas
Substances can change state, usually when they are heated or cooled. For example, liquid water turns into steam when it is heated enough, and it turns into ice when it is cooled enough. ... The closeness, arrangement and motion of the particles in a substance change when it changes state.
I think that is A is the answer.
Answer:
Final concentration = 10 M
Explanation:
Given data:
Initial volume = 100 mL
Initial molarity /concentration= 5 M
Final volume = 50 mL
Final molarity/concentration = ?
Solution:
Formula:
M₁V₁ = M₂V₂
M₁ = Initial molarity
V₁ = Initial volume
M₂ = Final molarity
V₂ = Final volume
Now we will put the values.
5 M × 100 mL = M₂ × 50 mL
500 M.mL = M₂ × 50 mL
M₂ = 500 M.mL / 50 mL
M₂ = 10 M
Answer:
The molar concentration of water in water is 55,5 moles/L
Explanation:
In chemistry, concentration refers to the amount of a substance per defined space. Molar concentration refers to moles of solute per liter of solution.
To obtain the molar concentration of water in water you need to know how many moles of water you have in a liter, thus:
1L ×× = <em>55,5 moles/L</em>
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I hope it helps!