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3 years ago

Which of the following is NOT an example of potential energy?

Chemistry

1 answer:

Diano4ka-milaya [45]3 years ago

4 0

Answer:

A. car moving down the highway

Explanation:

Potential energy is when the energy is being held in, as in, it is very still, and not moving.

When a car is moving down a highway, it is releasing kinetic energy, instead of potential.

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What is the pH of a bleach solution that has a [OH−]=1.3×10−4 M?

Delvig [45]

Answer:

pH = 10.113

Explanation:

Here, we can find pOH first:

pOH = $-log([OH^-])$ = 3.886.

Then, we can find pH which is 14 - pOH. We then get the answer above.

4 0

3 years ago

A child receives a balloon filled with 2.42 L of helium from a

Amanda [17]

Answer:

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Explanation:

8 0

3 years ago

1. The atomic symbol of aluminum is written as 2713Al. What information do you get from it?

enyata [817]

Answer:

its mass number and atomic number

Explanation:

atlmic number(subscript)=13

mass number(superscript)=27

6 0

3 years ago

How are scientists able to study the composion of a star that is located out of the solar system

Natasha_Volkova [10]

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I hope this helps.

5 0

3 years ago

Calcum chloride contains only calcum and chloride What is the fomula for this compound? fou need the Peodie Table for thia quest

mafiozo [28]

Answer:

$CaCl_2$

Explanation:

Calcium is the element of the group 2 and period 4 which means that the valence electronic configuration is $[Ar]4s^2$ .

Chlorine is the element of the group 17 and period 3 which means that the valence electronic configuration is $[Ne]3s^23p^5$ .

Thus, calcium losses 2 electrons to 2 atoms of chlorine and these 2 atoms of chlorine accepts each electron to form ionic bond. This is done in order that the octet of the atoms are complete and they become stable.

Ca Cl

2 1

Cross multiplying the valency, We get, $CaCl_2$

Thus, the formula of calcium chloride is $CaCl_2$ .

3 0

4 years ago