Answer:
B
Explanation:
The electronegativity of an atom is a chemical property of that atom that describes the tendency of the atom in question to attract a lone pair of electrons towards itself.
Across the periods, that is going from left to right on the periodic table, it is expected that there is an increase in the electronegativity of elements. Hence, there are more electronegative elements on the right hand side of the periodic table. Thus, we say chlorine or fluorine is more electronegative than either sodium and magnesium.
While it is expected to increase across the period, electronegativity decreases down the group. Hence, we know that chlorine is more electronegative than bromine while fluorine is more electronegative than chlorine. In fact, fluorine is the most electronegative element as it is the first member of the most electronegative group of elements.
Fluorine and oxygen are expected to undergo a covalent bond formation. Both are electron deficient and thus completes their electron orbits by entering into covalent bonding with each other
The statement is true. If a mineral lacks the presence of iron in it then it will be generally dimagnetic. It means non iron minerals do not show magnetic property in general. There are some minerals like serpentine do show some magnetic susceptibility, however this is negligible as compared to iron minerals hence the ores with no magnetic are generally diamagnetic.
#1 (As trash, synthetic polymers are not biodegradable)
#2 (Landfills can easily fill up with synthetic polymers)
#4 (Recycling synthetic polymers is costly)
Answer:
The atmosphere acts like a multi-layer shield that protects Earth from dangerous solar radiation. ... The stratospheric ozone layer absorbs ultraviolet (UV) radiation, preventing dangerous UV rays from hitting Earth's surface and harming living organisms. (Just look it up)
Explanation:
I hope this helps!
Answer:
5. A strong base increases the OH- ion concentration in an aqueous solution.
6. It has more hydrogen ions.
Explanation:
5. Arrhenius theory states that acids donate H+ ions to a solution and bases donate OH- ions to a solution.
6. pH < 7 so the solution is acidic. Acidic solutions have more hydrogen or hydronium ions. Hydrogen and hydronium ions are essentially interchangeable.
