Answer:
Water and Salt are the products of simplest types of acid-base reactions.
Examples:
Base Acid Salt Water
NaOH + HCl → NaCl + H₂O
2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O
NaOH + CH₃CO₂H → CH₃COONa + H₂O
In all theses simple reactions the base (i.e. OH⁻) abstracts proton from the acid and forming a conjugate base with negative charge. Thus the negative charged conjugate base forms a salt with positively charged sodium ions.
<span>The answer to this would be radioactive decay. This is also known as "nuclear decay" or "radioactivity".</span>
Answer:
There are no changes in primary atmospheric gases even if height is 18,000 ft.
It feels like oxygen is low at such heights but it is not. At height of 18000 ft oxygen will be same in air (21%) but due to decrease in pressure it will be difficult to breathe.
Explanation:
As we move to higher altitudes, the pressure reduces if we compare it with sea level but the important thing to note is composition of air remains the same which is 78% Nitrogen, 21% oxygen and 1% other gases (including Carbon dioxide). There are no changes in primary atmospheric gases even if height is 18,000 ft but the problem which can be faced is breathing because pressure is low at such height and it will be difficult for lungs to take oxygen in.
It feels like oxygen is low at such height but it is not. At height of 18000 oxygen will be same in air(21%) but due to decrease in pressure it will be difficult to breathe.
<span>You are given O2 and C3H8, this is a combustion
reaction. The chemical reaction is C3H8 + 10O2 à 3CO2 + 4H2O. You are also given the molar mass
of O2 which is 32.00 g/mol and C3H8 which is 44.1 g/mol. You are required to
find the mass of O2 in grams. Since you have the reaction, oe mole of C3H8 is
required to completely react 10 moles of O2. So,</span>
0.025g C3H8(1 mol C3H8/44.1 g C3H8)(10 mol O2/1
mol C3H8)(32 g O2/1 mol O2) = <u>0.1802 g O2
</u>
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