Answer:
A
Explanation: The definition of a compound is two elements chemically connected
Acid oxides<span> is a complex chemical substance </span>oxides<span>, which form a salt with the chemical reactions with bases or basic </span>oxides<span> and do not react with </span>acidic oxides<span>. Examples of </span>acidic oxides<span> can be: ... CO</span>2+H2O→H2CO3<span> is a substance - carbonic</span>acid<span> is one of the weak </span>acids<span>, it is added to carbonated water for "bubbles" of </span>gas<span>.</span>
Answer:
0.053moles
Explanation:
Hello,
To calculate the number of moles of gas remaining in his after he exhale, we'll have to use Avogadro's law which states that the volume of a given mass of gas is directly proportional to its number of moles provided that temperature and pressure are kept constant. Mathematically,
V = kN, k = V / N
V1 / N1 = V2 / N2= V3 / N3 = Vx / Nx
V1 = 1.7L
N1 = 0.070mol
V2 = 1.3L
N2 = ?
From the above equation,
V1 / N1 = V2 / N2
Make N2 the subject of formula
N2 = (N1 × V2) / V1
N2 = (0.07 × 1.3) / 1.7
N2 = 0.053mol
The number of moles of gas in his lungs when he exhale is 0.053 moles
Answer:
The correct option is a.
Explanation:
125 kPa
125kpa - 2x 4x x
Total pressure after reaction = 176 kPa
125 kPa - 2x + 4x + x = 176 kPa
x = 17
125 kpa - 2x = 125 kPa - 2(17) = 91 kPa
Initial pressure of the dinitrogen pentoxide ,(at t=0) =
Final pressure of the dinitrogen pentoxide, (at t = t) = P = 91 kPa
The rate constant is = 
It will take 113 minutes for the total pressure to reach 176 kPa.
Answer: CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2
Explanation:
