Answer:
1. NaCl
.
Explanation:
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In this case, it is necessary to keep in mind that just ionic compounds are able to conduct electricity and therefore, the more ionic the compound is, the more electricity it conducts. In such a way, we may be able to predict how ionic these compounds are, considering that the electronegativity increases from bottom to top and from left to right.
1. NaCl: this is the most ionic compound since it is at the leftmost group and bonded with chlorine, so this is the most conductive one.
2. Mg(CIO3)2: Mg is bonded to O, not to Cl, which makes the compound ionic but not as ionic as NaCl.
3. NiCl: Ni is more electronegative than Na and Mg, so even when this is ionic, it is not as ionic as NaCl.
4. CaCl2: This is similar to NaCl but since Ca is in group 2A, it is more electronegative than Na, which makes CaCl2 conductive but not as much as NaCl.
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The answer to the question would be B since Nitrogen is the most abundant gas in our atmosphere
Explanation:
Except for the use in the chemistry laboratory , were it is used to synthesize many useful products, silver nitrate is also has biolofical and medical relevance.
Silver nitrate is commonly used for silver staining, for demonstrating the reticular fibers, the proteins and the nucleic acids. It is also used as stain in the scanning electron microscopy.
Silver Nitrate is also used for the bone ulcers as well as the burns and the acute wounds.
Answer:
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
Answer: The Earth systems is divided into Atmosphere, Lithosphere, Hydrosphere and Biosphere.
Explanation:
According to the three basic states of matter (i.e. solid, liquid and gas), the earth system is divided into the following categories:
1. Atmosphere - is the layer of gases that is found in the Earth. The gases are nitrogen, oxygen, carbon dioxide and other gases.
2. Lithosphere - This part contains the rocks and soil
3. Hydrosphere - This is all the water found on the Earth, and
4. Biosphere - It consists of all the living organisms and their dwelling place on Earth. Living organisms have all the three states of matter.
