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solniwko [45]
3 years ago
7

Need some facts on the universe

Chemistry
1 answer:
S_A_V [24]3 years ago
3 0

Answer:"SPACE IS COMPLETELY SILENT. ... THE HOTTEST PLANET IN OUR SOLAR SYSTEM IS 450° C. ... A FULL NASA SPACE SUIT COSTS $12,000,000. ... THE SUN'S MASS TAKES UP 99.86% OF THE SOLAR SYSTEM. ... ONE MILLION EARTHS CAN FIT INSIDE THE SUN. ... THERE ARE MORE TREES ON EARTH THAN STARS IN THE MILKY WAY."

Explanation:

You might be interested in
Which term refers to the speed at which reactants are converted into products?
liberstina [14]
Reaction rate , forsure
8 0
4 years ago
Read 2 more answers
How is a hydroponic garden different from a normal garden?
guapka [62]

The hydroponic garden is different than a normal garden because the plants are required to find more components in the soil. One more difference among hydroponic gardening or ordinary gardening is that hydroponics could be complex. fertilizer for hydroponic growing are usually in more immaculate structure than are regular fertilizer.

4 0
4 years ago
Read 2 more answers
The equilibrium constant is given for one of the reactions below.
Cerrena [4.2K]

Answer:

12.7551

Explanation:

The given chemical equation follows:

2HD(g)\rightarrow H_2(g)+D_2(g)

The equilibrium constant for the above equation is 0.28.

We need to calculate the equilibrium constant for the reverse equation of above chemical equation, which is:

2H_2(g)+2D_2(g)\rightarrow 4HD(g)

The equilibrium constant for the reverse reaction will be the reciprocal of the initial reaction.

If the equation is multiplied by a factor of '2', the equilibrium constant of the reverse reaction will be the square of the equilibrium constant  of initial reaction.

The value of equilibrium constant for reverse reaction is:

K_{eq}'=(\frac{1}{0.28})^2

<u>Hence, the value of equilibrium constant for reverse reaction is 12.7551.</u>

3 0
4 years ago
If 9.5 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂ that is produced?
Leno4ka [110]

Answer:

6.9428 kg of CO2

Explanation:

1) Use Avogadro's number that states 1 mole = 6.022 x 10^23 particles. Convert 9.5 x 10^25 molecules into moles.

9.5 x 10^25 CO2 moleculesx\frac{1 mole CO2}{6.022 x 10^23} = 157.75 moles CO2

2) Convert 157.75 moles of CO2 into grams. CO2's molar mass is 44.01g.

157.75moles CO2 x \frac{44.01g/mol}{1 mole CO2} = 6942.79g

3) Convert 6942.79 grams into kilograms (divide by 1000):

6.9428 kg

4 0
3 years ago
Originally, the periodic table was arranged by
elixir [45]
Increasing atomic mass
5 0
3 years ago
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