Answer: Blood Vessels and Heart
Explanation:
If you wanna get into the nitty-gritty, The circulatory system is also made up of arteries, veins and capillaries.
X^2 * -5x * -10=0
50x^3=0
x= 0
Answer:
25% red, 50% pink, 25% white
There will be more acid particles to interact with the limestone at higher concentrations hence the rate of reaction increases.
The question is incomplete but I will try to help you the much I can. If you have carried out the experiment properly, you will notice that the rate of reaction increases as the concentration of the acid increases.
This is because, if the amount of limestone is held constant and the concentration of acid is increased, there will be more acid particles to interact with the limestone at higher concentrations hence the reaction proceeds faster.
Learn more about rate of reaction: brainly.com/question/8592296