Answer:
C. 1 cubic foot of loose sand
Explanation:
For many objects having equal volume , surface area will be maximum
of the object which has spherical shape .
But when a sphere is broken into tiny small spheres , total surface area of all the small spheres will be more than surface area of big sphere .
Hence among the given option , surface area of loose sand will have greatest surface area . Loose sand is equivalent to small spheres .
<span>The fossil fuels form from the buried remains of ancient organisms, </span>formed from the remains of dead plants and animals.
<span> These plants and animals that have been converted to crude oil, coal, natural
gas, or heavy oils by exposure to heat and pressure in the earth's
crust over hundreds of millions of years. So, three things that act on decaying organisms to help form fossil fuels are:
-pressure
-heat
-physical and chemical changes
People use fossil fuels products for transportation and heating, many power plants burn coal for heat to turn turbines that generate electrical energy. ...</span>
An earthquake would support the principle of catastrophism because it causes catastraphies in its quakes and shakes.
Answer:
= 2113.44 kJ
Explanation:
When 1 mole of CH4 (g) burns in excess oxygen -714.0 kJ of heat is released.
For 47.50 g;
molar mass of CH4 = 16.042 g/mol
Number of moles of CH4
= 47.5 g /16.042 g/mol
= 2.96 moles
Therefore;
1 mole = -714.0 kJ
Heat change for 2.96 moles
= 2.96 moles × -714.0 kJ
= 2113.44 kJ
Answer:
H2
Explanation:
H (or hydrogen), being a halogen, as an atom, has 7 valence electrons. This means that it naturally bonds with another atom of the same isotope in order to reach the desired total of valence electrons: 8.
So... H+H = H2. EZ
