I think the best answer among the choices listed above is option A. Elements are the smallest particles of any material. It cannot be broken down into more tiny particles. There are 118 known elements where 94 occurs naturally and the 24 remaining are synthetic.
Nuclear fusion is the process in which atomic nuclei come together to form heavier nuclei, releasing large amounts of energy in the process. The correct statements are The gas cloud must be very dense, Atoms must be stripped of their electrons, and Temperatures must exceed 14 million Kelvin.
For fusion to occur, certain conditions must be met. The gas cloud or plasma must be dense enough to allow for a sufficient number of collisions between atomic nuclei. Gravitational attraction, on the other hand, is necessary to bring the atomic nuclei close enough together for the strong nuclear force to overcome the electrostatic repulsion between positively charged nuclei.
Atoms must be stripped of their electrons because, in a plasma state, the atoms are ionized, meaning they have lost or gained electrons and exist as charged particles.
Hence, the correct statements are The gas cloud must be very dense, Atoms must be stripped of their electrons, and Temperatures must exceed 14 million Kelvin.
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#SPJ 2
Answer:
The gas cloud must be very dense.Temperatures must exceed 14 million Kelvin
Answer:
0.85 mol/L.
Explanation:
M = (no. of moles of solute)/(Volume of the solution (L))
no. of moles of calcium phosphate = 2.125 mol.
Volume of the solution = 2.5 L.
∴ M of calcium phosphate = (2.125 mol)/(2.5 L) = 0.85 mol/L.
Explanation:
Substances with their density less than the density of water which is 1 g/cm³ will float on it whiles those greater than that of water will sink into the water.
From the question the density of the object is 0.8 g/cm³
Since it's density is less than that of water the object will float on water .
Hope this helps you
An object with a density of 0.8 g/cm3 will float in water because its density is less than the density of water, which is 1 g/cm3.
The question is asking whether an object with a density of 0.8 g/cm3 will float or sink in water. Floating and sinking are determined by the principle of buoyancy, which depends on the density of the object compared to the fluid (in this case, water) it is placed in.
Water has a density of 1 g/cm3. So, if the object's density is less than 1 g/cm3, it will float, if it's more it will sink. Since 0.8 g/cm3 is less than 1 g/cm3, an object with this density will float in water.
#SPJ3
a. True
b. False