1. Lemon juice (pH 2.2) = Acidic
2. Salt solution (pH 7) = Neutral
3. Baking soda (pH 9) = Alkaline
4. Bleach (pH 13) = Alkaline
5. Tomato juice (pH 4) = Acidic
6. Gastric juices (pH 1) = Acidic
<h3>Explanation: </h3>
The pH scale measures how acidic or alkaline a substance is. The pH scale ranges from <u>0 to 14.</u>
A pH of 7 is neutral.
Acidic substances have pH less than 7.
Alkaline(Base) substances have a pH greater than 7
Hence, the given samples can be categorized as acidic, basic or neutral based on their pH values.
1. Lemon juice (pH 2.2 < 7) = Acidic
2. Salt solution (pH 7 = 7) = Neutral
3. Baking soda (pH 9 > 7) = Alkaline
4. Bleach (pH 13 >7) = Alkaline
5. Tomato juice (pH 4 < 7) = Acidic
6. Gastric juices (pH 1 < 7) = Acidic
The balanced chemical reaction is:
<span>Ca + Cl2 = CaCl2
</span>
We are given the amount of calcium metal to be used for this reaction. This will be the starting point for the calculations.
56 g Ca ( 1 mol Ca / 40.08 g Ca) (1 mol Cl2 / 1 mol Ca) ( 22.414 L Cl2 / 1 mol Cl2 ) = 31.32 L Cl2 gas produced from the reaction
Answer: Habers process is the industrial process used for the production of ammonia
Explanation:
Habers process is the industrial process used for the production of ammonia. It uses hydrogen from natural gas and nitrogen mainly from atmosphere under extremely high pressures (150-200atm) and moderately high temperatures 
.
The catalyst used in Habers process is iron.
The balanced chemical reaction is:
Explanation:
E maybe i am not sure or C
Answer:
The correct answer is "430 kJ/kg". A further explanation is given below.
Explanation:
The given values are:
T₁ = 400 k
T₂ = 800 k
The average temperature will be:
= 
= 
= 
From table,
At 600 k the 
will be = 1.075
Now,
⇒ The specific enthalpy = 
⇒ 
⇒ 
