The formula Ca(ClO3)2 breaks down to: 1 calcium atom, 2 chlorine atoms, and 6 oxygen atoms. Therefore:
One molecule of calcium chlorate contains 9 atoms [correct]
Calcium chlorate is not an element, nor does the molecule contain only 3 atoms [incorrect]
It does not take 9 different elements - just the three elements we listed [incorrect]
Calcium chloride only contains one Ca group [incorrect]
Answer:
Option D = No, when elements combine to form a new material, they have properties unique to the new materials.
Explanation:
When sodium contact with water it loses its one electron and thus gain positive charge. When there are more sodium atoms present and many atoms do this thus more positive ions are produced and these positive ions repeal each other at high speed and explosion occur.
But when it form compound with other material, it will not showed this behavior.
Example:
Consider the sodium chloride, when it dissolve in water sodium not showed explosion. In sodium chloride sodium already gives its electron to the chlorine and have stable electronic configuration. The sodium present in cationic form. When it dissolve, partial positive charge of water surrounds the Cl⁻ and partial negative charge of water surrounds the Na⁺ ion, ans sodium chloride gets dissolve into water without explosion.
I think is 5 because you use density is found by mass divide by volume.
Answer is: mass of lithium fluoride is 3,732 grams.
m(solution) = 18,66 g.
ω(solution) = 20% = 20% ÷ 100% = 0,2.
m(LiF) = ?
ω(solution) = m(LiF) ÷ m(solution).
m(LiF) = ω(solution) · m(solution).
m(LiF) = 0,2 · 18,66 g.
m(LiF) = 3,732 g.
Answer:
D. It will not have a nucleoid.
Explanation:
Cells with a nucleus are eukaryotic cells. This means they will have membrane-bound organelles. The nucleus is an example of a membrane bound organelle that houses the DNA.
A. It will not have nuclear membrane. - this is false, the nucleus is surrounded by the nuclear membrane
B. It will not have a nucleolus - this is false, the nucleolus is a part of the nucleus, usually where ribosomal RNAs are made
C. It will not have ribosomes - this is false, proteins are made in ribosomes and they are present in all cells
D. It will not have a nucleoid - this is true. The nucleoid is a space in the cytoplasm of prokaryotic cells that houses the DNA. It is not membrane bound, and is distinct from the nucleus.
