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Papessa [141]
3 years ago
6

Which example has only potential energy and no kinetic energy? a roller coaster zooming down a hill a child riding their bike a

bird flying from a tree a ball sitting on a shelf
Chemistry
2 answers:
Paladinen [302]3 years ago
6 0

Answer: a ball sitting on a shelf

Explanation:

Kinetic energy is the energy possessed by an object by virtue of its motion.

Potential energy is the energy possessed by an object by virtue of its position.

a)  a roller coaster zooming down a hill possess kinetic energy as it is in motion.

b) a child riding their bike possess kinetic energy as it is in motion.

c) a bird flying from a tree possess kinetic energy as it is in motion.

d) a ball sitting on a shelf does not possess kinetic energy as it is not in motion and possess potential energy only.

Thus a ball sitting on a shelf has only potential energy and no kinetic energy

ollegr [7]3 years ago
3 0
D) A ball sitting in a shelf
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Consider the above reaction. If some CO2 were removed from the container, what would the reaction do in an attempt to replace th
faltersainse [42]

Answer:

See explanation

Explanation:

The reaction to be considered is shown below;

H2CO3<------->CO2 + H2O

We know  that when a constraint such as a sudden change in concentration, pressure or temperature is imposed on  a reaction system in equilibrium, the system has to adjust itself by shifting in a particular direction in order to cancel the constraint.

Now, if we remove CO2, the equilibrium position must shift to the right by the decomposition of more H2CO3 to establish equilibrium again.

4 0
3 years ago
When balancing an equation, should you adjust the subscripts or the coefficients?
dimulka [17.4K]
Coefficients, you can’t change the subscripts but you can balance the equation by adding coefficients to both sides
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3 years ago
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Which element is in the same family as Chlorine (Cl) and Fluorine (F)?
ValentinkaMS [17]

Answer/Explanation:

Chlorine and Fluorine are in the Halogen family. The elements in the Halogen family are:

Fluorine (F)

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Astatine (At)

Tennessine (Ts)

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Lithium (Li) is an alkaline metal.

8 0
3 years ago
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When excess dilute hydrochloric acid was added to sodium sulphite 960 of sulphuric (iv) oxide was produced. calculate the mass o
irakobra [83]

The mass of sodium sulfite that was used will be 1,890 grams.

<h3>Stoichiometric problems</h3>

First, the equation of the reaction:

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The mole ratio of SO2 produced and sodium sulfite that reacted is 1:1.

Mole of 960 grams SO2 = 960/64 = 15 moles

Equivalent mole of sodium sulfite that reacted = 15 moles

Mass of 15 moles sodium sulfite = 15 x 126 = 1,890 grams

More on stoichiometric problems can be found here: brainly.com/question/14465605

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3 0
1 year ago
How many joules are needed to warm 675 grams of water (specific heat= 4.186 J/g degrees Celsius) from 12 degrees Celsius to 85 d
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there are 675 grams, so 305.578 * 675 = 206265.15 J

2.06 x 10^5 J are needed
3 0
3 years ago
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