Answer:
B. Step 1 is endothermic, Step 2 is endothermic, Step 3 is exothermic
Explanation:
Prior to the formation of a solution, the solvent molecules attract each other as well as the solute molecules. For a dissolution to be effective, those interactions need to be weakened, at the same time that interaction between solute and solvent ought to be established. The formation of solute-solvent interactions is exothermic and provides the energy required to separate solvent-solvent particles and solute-solute particles, being both processes endothermic (the absorbed energy is used to break the interactions).
Answer:
1. 1 teaspoon of flour added with 1 cup of water
2. 1 teaspoon of alcohol dissolved with 1 glass of water
3. 1 teaspoon of sugar mixed in 1 glass of coconut milk
4. 1 pack of shampoo mixed with 1 glass of water
Explanation:
Remember always use on what is available at home if you don't have a coconut milk use water
Glad to help!
Answer:
On average, agriculture accounts for 70 percent of global freshwater withdrawals. In the last 30 years, food production has increased by more than 100 percent. FAO estimates that about 60 percent more food will be needed by 2050 to meet the food requirements of a growing global population.
Explanation:
Because i learnt this before and i aced a test about it dont worry
Answer:
Explanation:
In this question, we have to start with the calculation of the <u>amount of drug in each powder</u>:
Powder A: Total mass of 0.5 Kg percentage of 0.038%
Powder B: Total mass of 10 Kg percentage of 0.043%
<u>The total mass of powder would be</u>:
<u>The total mass of drug would be</u>:
Now we can calculate the <u>percentage</u>:
I hope it helps!
The law that states the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions would be the Charles Law. It <span>is an experimental gas </span>law<span> that describes how gases tend to expand when heated. Hope this answers the question.</span>