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2 years ago

13

Which of the following would be the most difficult to compress?

2 answers:

Alchen [17]2 years ago

3 0

The hardest to compress here would be the brick

balandron [24]2 years ago

3 0

Answer:

Brick

Explanation:

The brick is already the most dense.

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Smart people help me pass my class

slega [8]

Answer:

im not smart but here

Explanation:

The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.

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2 years ago

Which is best explanation of electric current in a wire?

Gelneren [198K]

<span>D) Electrons flow because of electrical attraction and repulsion</span>

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2 years ago

Read 2 more answers

The standard cell potential (E°cell) for the reaction below is +1.10V. The cell potential for this reaction is ________ V when t

alexandr402 [8]

Answer: 0.94 V

Explanation:

For the given chemical reaction :

$Zn(s)+Cu^{2+}(aq)\rightarrow Cu(s)+Zn^{2+}$

Using Nernst equation :

$E_{cell}=E^o_{cell}-\frac{2.303RT}{nF}\log \frac{[Zn^{2+}]}{[Cu^{2+}]}$

where,

F = Faraday constant = 96500 C

R = gas constant = 8.314 J/mol.K

T = room temperature = $298K$

n = number of electrons in oxidation-reduction reaction = 2

$E^o_{cell}$ = standard electrode potential of the cell = +1.10 V

$E_{cell}$ = emf of the cell = ?

Now put all the given values in the above equation, we get:

$E_{cell}=+1.10-\frac{2.303\times (8.314)\times (298)}{2\times 96500}\log \frac{2.5}{1.0\times 10^{-5}}$

$E_{cell}=+1.10-0.16V=0.94V$

The cell potential for this reaction is 0.94 V

5 0

2 years ago

HURRY PLEASE HELP !!!

melomori [17]

Answer:

I ONLY KNOW ONE THAT IS

2C2H6+5O2=>4CO+6H2O

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2 years ago

A student measured the length of a piece of paper and determined it to be 21.6cm using a metric measurement and 8 1/2 inches usi

RoseWind [281]

Explanation:

As per the measurements that are made by the student are as follows.

21.6 cm is equivalent to 8.5 inch

Therefore, 1 cm for the given situation will be equivalent to inch as follows.

1 cm = $\frac{8.5}{21.6}$ inch

= 0.393 inch

Hence, we will calculate the ratio of cm : inch as follows.

Ratio of cm : inch = $\frac{8.5}{21.6}$

= 0.39

Thus, we can conclude that the ratio of cm/inch using the students data is 0.39.

4 0

3 years ago