Answer:
Explanation:
1 Calorie = 4184 Joules
450 Calories = 450 x 4184 J
= 188.28 x 10⁴ J
3.5 x 10⁶ joules
4184 joules = 1 Calorie
3.5 x 10⁶ joules = 836.52 Calories.
The products of the reaction are Zinc chloride (ZnCl₂) and Hydrogen gas (H₂)
From the question,
We are to determine the product or products when zinc (Zn) reacts with hydrochloric acid (HCl)
To determine the product or products, we will write the chemical equation for the reaction.
The balanced chemical equation for the reaction is
Zn + 2HCl → ZnCl₂ + H₂
Hence, the products of the reaction are Zinc chloride (ZnCl₂) and Hydrogen gas (H₂)
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Definitely, the answer is false. A desiccant is a substance used in order to absorb moisture in the surroundings. It is a hygroscopic material that removes humidity since humidity will aid in the degradation or destruction of materials which are sensitive to moisture.
The precise fit on the ring stand. The ability to hold more substance than a test tube. A shallow bottom to increase the surface area of a liquid, leaving the solid behind.
Answer:
the derived unit of speed in m/s as distance/time is speed. Meter as second are the base units from wich it is made of.