Ask question

Ask question

All categories

3 years ago

11

Please help!!!!! Which instrument, along with a telescope, allows study of the wavelengths of visible light coming from a star?

A. a shortwave radio set B. a nuclear reactor C. a solar flare D. a spectrograph

1 answer:

Free_Kalibri [48]3 years ago

3 0

I think it could be d but I don’t know

You might be interested in

Fine pebbles are 2.0 to 5.0 mm in diameter. Sand is 0.05 to 2.0 mm in diameter. Which of the following statements is true? Fine

Anton [14]

Fine pebbles have a higher threshold velocity than sand

~ hope this helps! ❤️

4 0

4 years ago

Read 2 more answers

How many protons, electrons, and neutrons does a magnesium-25 atom have if it has a sharge=2?

Sveta_85 [38]

Answer:

There are 12 protons, and 10 electrons in an Mg2+ ion, the normal amount of neutrons is 12.

Explanation:

3 0

3 years ago

The volume of a gas is directly proportional to its temperature if the pressure of the particles is constant. This is a statemen

Deffense [45]

The gas is disposed proportional to the temperature to pressure of the particles

6 0

4 years ago

Use the standard reduction potentials located in the 'Tables' linked above to calculate the equilibrium constant for the reactio

Paladinen [302]

Answer:

Check the explanation

Explanation:

cell CuE Ecell 0.337 (-0.14) Ecl0.477 V

Since $E^o_{ cell } > 0$ , the value of \Delta G^o will be negative.

$\Delta G^o < 0$

$\Delta G^o =-nFE^o_{ cell }.$ .....(1)

But

$\Delta G^o =-RT ln K$ ......(2)

From (1) and (2)

$\Delta G^o =-RT ln K=-nFE^o_{ cell }$

ln K = $\frac{nFE^o_{ cell } }{RT }$

ln K = $\frac{ 2 \times 96500 \times 0.477 }{8.314 \times \left ( 25+273.15 \right ) }$

ln K =37.139

K = $1.3468 \times 10^{16}$

Hence, the value of the equilibrium constant is $1.35 \times 10^{16}$

6 0

3 years ago

True or false: The higher the concentration of a substance in a chemical reaction, the faster the reaction rate will be

xenn [34]

Answer:

true

Explanation:

It's true man..............true.........

5 0

3 years ago