If I had to answer, I would go with C.) Two elements in the same group
I would choose C because elements in the same group have the same number of valence electrons. When elements have the same number of valence electrons, they are all willing to give/receive them in the same way. Therefore, if placed in water, they will combine with water the same way.
Hope this helps!
A reagent is a compound that is used for the detection of the absence or presence of another substance.
<h3>What are reagents?</h3>
Your information is incomplete as the available reagents aren't given. Therefore, an overview will be given.
Reagents are the integral part of a chemical reaction as they facilitate a reaction. A reagent is usually used tests.
Some typical examples of reagents include Tollens reagent, Fehling's reagent, Million's reagent, etc.
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brainly.com/question/5601219
Answer:
Rock
Explanation:
Let's calculate the density of each object:
Rock:
Pencil:
Therefore the rock is denser.
We are given withe the data that blood buffered to pH of 7.4. This means the pH of blood will remain close to 7.4 when A. <span>moderate amounts of acid or base are added. When buffers are added,no significant changes in the pH occurs afterwards. </span>