Because chemical energy is stored the chemical reaction takes place the stored chemical energy is released.
Answer:
The final temperature is equal to 240 K or -33.15°C
Explanation:
Given that,
Initial temperature of the gas, T₁ = 47°C = 320 K
Initial pressure, P₁ = 140 kpa
Final pressure, P₂ = 105 kpa
We need to find the final temperature if the volume remains constant. The relation between temperature and pressure is given by :
or
So, the final temperature is equal to 240 K or -33.15°C.
Answer: The density of glycerine is
Explanation: We are given density of glycerine in which is
To convert t into , we are given conversion rates:
454 grams = 1 pound
So, 1 gram will be equal to
Similarly,
So, will be equal to
Converting the density of glycerin from to using above conversion rates, we get:
Density of glycerin is
Answer:
The answer to your question is:
Explanation:
Ionic bonding is formed between a metal and a nonmetal.
Covalent bonding is formed between two nonmetals.
From the elements given:
Ionic bonding : Ca and O
Ca and S
K and O
K and S
Covalent bonding: S and O