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3 years ago

What 4 words make up the acronym for NASA.

Chemistry

2 answers:

Inga [223]3 years ago

6 0

The word NASA stands National Aeronautics and Space Administration

Hope this helps!

Nonamiya [84]3 years ago

5 0

If you mean what the abbreviation stands for, NASA means National Aeronautics and Space Administration. Hope this helps!!

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If the reduction reaction has a reduction potential of 0.1 V, and the oxidation reaction has a reduction potential of -0.4V, and

aleksley [76]

Answer : The value of ΔG expressed in terms of F is, -1 F

Explanation :

First we have to calculate the standard electrode potential of the cell.

$E^o=E^o_{cathode}-E^o_{anode}$

or,

$E^o=E^o_{reduction}-E^o_{oxidation}$

$E^o=(0.1V)-(-0.4V)=+0.5V$

Now we have to calculate the standard cell potential.

Formula used :

$\Delta G^o=-nFE^o$

where,

$\Delta G^o$ = Gibbs free energy = ?

n = number of electrons = 2

F = Faraday constant

$E^o$ = standard e.m.f of cell = +0.5 V

Now put all the given values in this formula, we get the Gibbs free energy.

$\Delta G^o=-(2\times F\times 0.5)$

$\Delta G^o=-1F$

Therefore, the value of ΔG expressed in terms of F is, -1 F

5 0

3 years ago

Iron is a metal. The structure of iron is described as a lattice of positive ions in a sea of

KATRIN_1 [288]

Answer: 1and 4

Explanation: iron is an element not an alloy. An ionic lattice is not bonded covalently.

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3 years ago

Which statement defines activation energy?

ehidna [41]

Answer:

The statement which defines activation energy is that it is the difference between reactant energy and maximum energy.J

Explanation:

A reaction that does not have activation energy will not take place at all.

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3 years ago

A hydraulic system is designed to lift cars for inspection in a service station. The narrow end of the system has a surface area

fiasKO [112]

Given:

Surface area at the narrow end, A1 = 5.00 cm2

Force applied at the narrow end, F1 = 81.0 N

Surface area at the wide end, A2 = 725 cm2

To determine:

Force F2 applied at the wide end

Explanation:

Use the relation

F1/A1 = F2/A2

F2 = F1*A2/A1 = 81.0 N * 725 cm2/5.00 cm2 = 11,745 N

Ans: (b)

The force applied at the wide end = 11,745 N

5 0

3 years ago

Read 2 more answers

What would be the definition of concentration?

MariettaO [177]

Answer:

the action or power of focusing one's attention or mental effort.

Explanation:

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3 years ago