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Evgen [1.6K]
3 years ago
12

What is the amount of mass in each given unit of volume?

Chemistry
1 answer:
labwork [276]3 years ago
3 0

Answer:

Each volumn is different and therefore has a specific and unique mass.

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If a reaction is completely neutralized, the products would have a pH of<br><br> PLEASE ANSWER!!!!
zysi [14]

Answer:

undefined

Explanation:

It depends on the type of reactants carrying out the reaction.

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hich of the following statements is not true for an exothermic reaction? Question 2 options: The products have a higher heat con
yKpoI14uk [10]

Answer:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.

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What is the electron structure of sodium
yarga [219]
Electron structure of sodium:
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3 years ago
Read 2 more answers
Use the formation reactions below such that when added together, they match the balanced equation for the combustion of methane.
muminat

Answer:

ΔH of the reaction is -802.3kJ.

Explanation:

Using Hess's law, you can know ΔH of reaction by the sum of ΔH's of half-reactions.

Using the reactions:

<em>(1) </em>Cgraphite(s)+ 2H₂(g) → CH₄(g) ΔH₁ = −74.80kJ

<em>(2) </em>Cgraphite(s)+ O₂(g) → CO₂(g) ΔH₂ = −393.5k J

<em>(3) </em>H₂(g) + 1/2 O₂(g) → H₂O(g) ΔH₃ = −241.80kJ

The sum of (2) - (1) produce:

CH₄(g) + O₂(g) → CO₂(g) + 2H₂(g) ΔH' = -393.5kJ - (-74.80kJ) = -318.7kJ

And the sum of this reaction with 2×(3) produce:

CH₄(g) + 2 O₂(g) → CO₂(g) + 2H₂O(g) And ΔH = -318.7kJ + 2×(-241.80kJ) =

<em>-802.3kJ</em>

7 0
3 years ago
Someone please notice!! Explain the other parts such as the petal and receptacle do in the flower.
Troyanec [42]

Answer: well the receptacle connect the stalk to the flower and to support the flower and keeps the flower in an elevated position so as to attract the insects

Explanation: I don’t know if this helped

6 0
2 years ago
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