1. gravity (gravitational pull from the sun brings all the planets into orbit)
2. the big bang.
3. hydrogen gas.
4. planets, moons, asteroids, and comets
5. it’s becomes a black dwarf star
Answer:
mass of hydrogen collected is 0.016 gram
Explanation:
Given values:
For calculating mass we have to find the number of moles first
Ideal gas equation PV =nRT
Volume= 195 ml
Pressure: 753 torr =0.99 atm
Temperature: 25+273= 298 Kelvin
Ideal gas constant R= 0.0821 Latm/molK
Number of moles n= ?
So n= PV/RT
Adding the values
n= = (753 torr)(1 atm/760 torr)(195 mL)(1 L/1000 mL)/(0.0821 L·atm/mol·K)(273 K)
n = 0.007897 moles of H₂
Now mass of hydrogen collected = number of moles x Molar mass of H₂
= 0.007897 x 2
= 0.0157 g H₂
Now mass of hydrogen collected is 0.016 gram (rounding the amount)
The original results have not been replicated consistently and reliably.
Answer:
Polar covalent bond because of difference in electronegativities
Explanation:
Hey there,
I hope this answer solves your doubt.
<u>S</u><u>t</u><u>e</u><u>p</u><u>-</u><u>b</u><u>y</u><u>-</u><u>s</u><u>t</u><u>e</u><u>p</u><u> </u><u>Expla</u><u>n</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u>:</u><u>-</u>
The question is asking if the bonds between Carbon and Chlorine in CCl4 will be single, double or triple bonds.
<em>(</em><em>The structure of CCl4 </em><em>i</em><em>s attached as picture. Check it</em><em>)</em>
As per image, the structure consists of <u>Singl</u><u>e</u><u> </u><u>b</u><u>o</u><u>n</u><u>d</u><u>s</u><u>.</u> It is <u>4 single bonds</u>.
