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3 years ago

Order the density of the layers of the Earth from lowest density to highest

Chemistry

1 answer:

tatiyna3 years ago

3 0

Answer:

the first is the inner core second is outer core third oceanic cruat fourth contenental crust fifth asthenosphere

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How does Elnora feel about her future? A) She takes one day at a time. B) She is apprehensive and anxious. C) She is optimistic

Georgia [21]

Answer:

D) she is confident and has already made plans

4 0

3 years ago

What element is being oxidized<br><br> Fe2O3 + 3CO -> 2FE +3C02

Vinvika [58]

Fe because oxidation mean loss of oxygen and Fe lose the oxygen so Fe is oxidised

7 0

3 years ago

My Everest is the highest mountain on earth.its height is 8.848 km. Convert this height to feet. Write your answer in standard n

Vinvika [58]

Answer: $2.9(10)^{7} ft$

Explanation:

Firstly we need to know that $1 km=3280.84 ft$ , then we cam make the conversion:

$8848 km \frac{3280.84 ft}{1 km}=29,028,872.32 ft$ This is the height of Mount Everest in feet

However, we can express it using scientific notation by counting to the left the decimal spaces:

$29,028,872.32 ft \approx 2.9(10)^{7} ft$

3 0

3 years ago

Radio waves travel at the speed of light which is 3.00 x 10^8. How many minutes does it take for a radio message to reach saturn

ryzh [129]

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = $3.00\times 10^8\ m/s$

The distance = $7.9\times 10^8\ km$

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,

Distance = $7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m$

The relation between speed distance and time is shown below as:-

$Speed=\frac{Distance}{Time}$

Thus,

$3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}$

$300000000\times time=10^{11}\times \:7.9\ s$

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,

Time= $\frac{2633.33}{60}\ min=43.89\ min$

3 0

3 years ago

If the temperature of a liquid-vapor system at equilibrium increases, the new equilibrium condition will

nikdorinn [45]

If the temperature of a liquid-vapor system at equilibrium increases, it will shift towards the vapor phase, assuming that the pressure remains equal. The concentration of vapor will also increase relative to the concentration of liquid in the system. Thus, the new equilibrium condition will have more vapor than liquid.

6 0

3 years ago