Acids
Vinegar (Acetic Acid)
Lemon juice (Citric Acid)
Orange Juice (Citric Acid)
Soda (Carbonic acid)
Asprin (Acetylsalicylic acid)
Bases
Bleach ( sodium hypochlorite)
Drain Cleaner (sodium hydroxide)
Baking Soda (sodium bicarbonate)
Baking Powder (sodium carbonate)
Windex (ammonia)
The (II) is a roman numeral indicating the oxidation number of a transition metal. It is used when you refer to the element/compound by name but does not show up in the formula.
If you mean a mineral, then the correct answer would be c. non-living
Answer:
Work = 450 J
Explanation:
Force = 90N
Distance = 5m
Work = ?
The relationship between these quantities is given by the equation:
Work = Force * Distance
Work = 90 * 5
Work = 450 J
<u>Given:</u>
Dimensions of the room= 12 ft * 15 ft * 8.60 ft
<u>To determine:</u>
The amount of HCN that gives the lethal dose in the room with the given dimensions
<u>Explanation:</u>
As per the World Health Organization, the lethal dose of HCN is around 300 ppm
300 ppm = 300 mg of HCN/ kg of inhaled air
Volume of air = volume of room = 12 * 15 *8.6 = 1548 ft³
Now, 1 ft³ = 28316.8 cm³
Therefore, the calculated volume of air corresponds to:
1548 * 28316.8 = 4.383 * 10⁷ cm3
Density of air (at room temperature 25 C) = 0.00118 g/cm3
Thus mass of air corresponding to the calculated volume is
Mass = Density * volume = 0.00118 g/cm3 * 4.383 * 10⁷ cm3
= 5.172*10⁴ g = 51.72 kg
Lethal amount of HCN corresponding to 51.72 kg of air would be.
= 51.72 kg air* 300 mg of HCN/1 kg air = 15516 mg
Ans: Lethal dose of HCN = 15.5 g
