Answer:
18.75 mL of NaCl solution is required.
Explanation:
Given data:
Molarity of solution one = 2.0 M
Volume of solution one = ?
Molarity of second solution = 0.15 M
Volume of second solution = 250 mL
Solution:
M₁V₁ = M₂V₂
V₁ = M₂V₂/M₁
V₁ = 0.15 M × 250 mL / 2.0 M
V₁ = 37.5 M.mL / 2.0 M
V₁ = 18.75 mL
25 gigaseconds is equal to 2,500,000,000,000 centiseconds
Answer:
All of these properties are due to the chemical structure of the compound. The chemical structure includes the bonding angle, the type of bonds, the size of the molecule, and the interactions between molecules. Slight changes in the chemical structure can drastically affect the properties of the compound.Some atoms become more stable by gaining or losing an entire electron (or several electrons). When they do so, atoms form ions, or charged particles. Electron gain or loss can give an atom a filled outermost electron shell and make it energetically more stable.
Explanation:
Answer:
<em><u>Step by step explanation</u></em><em><u>:</u></em>
<em>Given:</em>
Mass of given sample (m) = 2.50 g
Initial temperature (T1) = 25°C
Final temperature (T2) = 20°C
Heat Energy Q = 12 cal
<em>T</em><em>o </em><em>find:</em>
<em></em>
<em>Solution</em><em>:</em>
We know that,
<em>Specific</em><em> </em><em>heat</em> <em>of </em><em>any </em><em>substance </em><em>is </em><em>directly</em><em> </em><em>proportional</em><em> </em><em>to </em><em>the </em><em>mass </em><em>and </em><em>change </em><em>in </em><em>temperature.</em>
Represented by equation,
Where,
<em>Q = Heat Energy</em>
<em>m = mass of given sampl</em><em>e</em>
<em>c = specific heat</em>
<em>∆T = change in </em><em>temperature</em>
Substituting corresponding values,
<em></em>
We also know that,
multiplying above answer by 4.184,
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Answer:
Your answer will be A.
Explanation:
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