The correct answer should be B) Water vapor and carbon dioxide in the atmosphere trap heat.
The trapped heat cannot leave the atmosphere and as it is trapped, it increases the heat of the planet.
If we let x be the number of sample which contains the atoms of carbon (C). Given that according to study, the amount of atoms in carbon sample that are C-13 atoms is 1.07%, the mathematical set-up that would represent the sample is,
= (0.0107)(C)
<em>Explanation:</em>
When 2 moles of sodium hydroxide (NaOH) reacts with 1 mole of phosphoric acid (H3PO4) it gives 1 moles disodium phosphate Na2HPO4 and 2 moles of water.
0.5 molar solution indicates half moles of molecules are present in per ltr solution.
to prepare disodium phosphate you need to dilute phosphoric acid solution to 0.25 molar and add equal quantity of 0.5 molar solution.
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Answer:
Inner transition metals
Explanation:
The inner transition metals are also known as rare earth metals. The rare earth metals includes Lanthanide and Actinide Series of the periodic table. The elements with atomic numbers 89 to 103 are placed in the third group of the periodic table are Actinides. Examples are uranium and plutonium. These elements are with high oxidation number are radioactive elements. Thus, the inner transition metals are radioactive elements.
