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Mnenie [13.5K]
3 years ago
12

Why are lager astronomical bodies such as planets and stars round?

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
5 0
Gravity pulls mass towards its center, therefore as matter is pulled towards a source of gravity it will naturally coalesce into a ball as matter competes to head towards the source of gravity.
leonid [27]3 years ago
3 0
They are around because of the Big Bang Theory
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A titration was performed in a lab situation. H2SO4 was titrated with NaOH. The following data was collected: mL of NaOH used =
RoseWind [281]
For the titration we use the equation,
                             M₁V₁ = M₂V₂
where M is molarity and V is volume. Substituting the known values,
                            (0.15 M)(43.2 mL) = (2)(M₂)(20.5 mL)
We multiply the right term by 2 because of the number of H+ in H2SO4. Calculating for M₂ will give us 0.158 M. Thus, the answer is approximately 0.16M. 
7 0
3 years ago
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Pls help ty so much!
Nitella [24]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \:mass = 11.42 \:\: grams

____________________________________

\large \tt Solution  \: :

\qquad \tt \rightarrow \: Q = ms\Delta T

  • \textsf{Q = heat evolved/absorbed = 501 J}

  • \textsf{m = mass in gram = ?}

  • \textsf{s = specific heat = 0.45}

  • \textsf{ΔT = change in temp = 120 - 22.5 =97.5°C}

\large\textsf{Find m : }

\qquad \tt \rightarrow \: 501 = m \sdot(0.45) \sdot(97.5)

\qquad \tt \rightarrow \:  501 = m \sdot43.875

\qquad \tt \rightarrow \: m =  \dfrac{501}{43.875}

\qquad \tt \rightarrow \: m  \approx11.42 \:  \: g

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

4 0
1 year ago
What is the density of ethane gas, C2H6 at STP
yawa3891 [41]

Answer:

The answer is that ethane gas has a density of 1.34 g/L at STP

Explanation:

Ethane weighs 0.0013562 gram per cubic centimeter or 1.3562 kilogram per cubic meter, i.e. density of ethane is equal to 1.3562 kg/m³; at 0°C (32°F or 273.15K) at standard atmospheric pressure.

7 0
2 years ago
Encountering problems during separation/purification is a very common issue in organic synthesis, but these steps are crucial to
Rus_ich [418]
True is the correct answer! your welcome! :)
8 0
3 years ago
The variable that a scientist observes to change while conducting an experiment is called the ___ variable.
Nimfa-mama [501]

Great Question!

The Answer Would Be "B" The "RESPONDING" Variable

4 0
3 years ago
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