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andrezito [222]
3 years ago
15

A. Energy is transferred to different forms

Chemistry
1 answer:
Luden [163]3 years ago
3 0

Answer:

A. Energy is transferred to different forms .

Explanation:

Hello!

In this case, we need to consider the law of conservation of mass and energy which states that mass and energy cannot be neither created nor destroyed, just modified; it means we can rule out B. and C. so far.

Moreover, since D. is actually true for combustion reactions because they are used to provide energy in industrial operations, this is not the concern here because a combustion reaction is not considered.

Therefore the correct option is A. Energy is transferred to different forms as the energy provided by Rose is transferred to the pendulum system .

Best regards!

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Upon balancing the equation below, how many moles of sulfuric acid are needed to react completely with 6.4 moles of lithium hydr
elena-14-01-66 [18.8K]

Moles of Sulfuric acid needed to react completely : 3.2

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction (balanced)

<em>H₂SO₄ (aq) + 2 LiOH (aq) ⇒ Li₂SO₄ (aq) + 2 H₂O (l)</em>

moles of LiOH = 6.4

From equation, mol ratio of H₂SO₄ : LiOH = 1 : 2, so mol H₂SO₄ :

\tt mol=\dfrac{1}{2}\times 6.4=3.2

5 0
3 years ago
What do covalent bonds usually form at room temperature?.
hichkok12 [17]

Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation.

7 0
3 years ago
When the temperature is increased, what does not change?
gavmur [86]

Answer:

Pressure

Explanation:

They are both equal but do not change when the other does

3 0
3 years ago
At 25.00 °C a gas has a volume of 6.00 L. What will the volume be at 150.0 °C? *
MrMuchimi
This solved in according to Charles law
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7 0
3 years ago
What are some examples of physical properties?
den301095 [7]

Answer:

Physical properties: how soft a blanket it, how hard bread is, what color leaves are, what bleach smells like.

Chemical change: burning wood, rotting food, digestion, rusting of a nail.

Physical change: mixing salt and sugar, tearing a piece of paper, melting ice, chopping wood.

Explanation:

Physical properties are properties that are measurable.

Chemical change is when substances combine (fire and wood make burning wood) to make another substance. They aren't reversible. If you were to melt ice, you could refreeze it, you can't unburn wood.

Physical change is something that alters the form of the substance but not the chemical composition.

Hope this helps!

4 0
3 years ago
Read 2 more answers
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