Answer:
The pressure of the gas increases by a factor of 4
Answer:
5.82 ×10⁴ j
Explanation:
Given data:
Mass of water = 25.7 g
Amount of heat to evaporate it = ?
Molar heat of vaporization = 4.07×10⁴ j/mol
Solution:
First of all we will calculate the number of moles of water.
Number of moles = mass/ molar mass
Number of moles = 25.7 g/ 18 g/mol
Number of moles = 1.43 mol
Energy needed for one mole is 4.07×10⁴ j.
For 1.43 mol:
1.43 mol × 4.07×10⁴ j/ 1mol
5.82 ×10⁴ j
The answer is c, because the top of the hemisphere and the bottom of the hemisphere make up the equator. Hope this helps and I hope you mark me brainliest!
Answer:
- <em>The element that makes up all organic compounds </em><u>is carbon (C)</u>
Explanation:
The term organic matter refers to the matter in the living organisms. Nowadays, organic compounds, the object of organic chemistry, are the compounds that contain carbon except carbon oxides, carbides and carbonates (which are considered inorganic compounds).
Organic compounds form a vast variety of vital compounds based on the versatility of carbon atoms.
Carbon atoms have four valence electrons which can form a variety of single, double, and triple bonds with it self, to form long chains.
Carbon atoms can also form bonds with other elements like, hydrogen, oxygen, nitrogen, halogens, among others, to form different kind of compounds: alkanes, alkenes, alkynes, alcohols, aldehydes, esters, eters, amines, amides, polymers, among others.
Thus, organic compounds form a vast subject of study based on the special chemical properties of carbon.
