Electrons determine the chemical properties. Protons and neutrons are in the nucleus the number of protons determines the number of electrons of an atom
Not sure about any others but I believe 3 goes with B
Answer is: A) Sr (strontium).
The reactivity series<span> is a series of metals from highest to lowest reactivity.</span><span> Metal higher in the reactivity series will displace another.
</span>Strontium is only higher in this group from magnesium. Strontium is stronger reducing agent than magnesium, gives electrons easier.
Answer: 483 mL of the cleaning solution are used to clean hospital equipment
Explanation:
The question requires us to calculate the volume, in mL, of solution is used to clean hospital equipment, given that 415g of this solution are used and the specific gravity of the solution is 0.860.
Measurements > Density
Specific gravity is defined as the ratio between the density of a given substance to the density of a reference material, such as water:
![Specific\text{ gravity = }\frac{density\text{ of substance}}{density\text{ of reference substance}}](https://tex.z-dn.net/?f=Specific%5Ctext%7B%20gravity%20%3D%20%7D%5Cfrac%7Bdensity%5Ctext%7B%20of%20substance%7D%7D%7Bdensity%5Ctext%7B%20of%20reference%20substance%7D%7D)
The density of a substance is defined as the ratio between the mass and the volume of this substance:
![density=\frac{mass}{volume}](https://tex.z-dn.net/?f=density%3D%5Cfrac%7Bmass%7D%7Bvolume%7D)
Considering the reference substance as water and its density as 1.00 g/mL, we can determine the density of the substance which specific gravity is 0.860:
![0.860=\frac{density\text{ of substance}}{1.00g/mL}\rightarrow density\text{ of substance = 0.860g/mL}](https://tex.z-dn.net/?f=0.860%3D%5Cfrac%7Bdensity%5Ctext%7B%20of%20substance%7D%7D%7B1.00g%2FmL%7D%5Crightarrow%20density%5Ctext%7B%20of%20substance%20%3D%200.860g%2FmL%7D)
Thus, taking water as the reference substance, we can say that the density of the cleaning solution is 0.860 g/mL.
Now that we know the density of the cleaning solution (0.860 g/mL) and the mass of solution that is used to clean hospital equipment (415g), we can calculate the volume of solution that is used to clean the equipment:
![\begin{gathered} density=\frac{mass}{volume}\rightarrow volume=\frac{mass}{density} \\ \\ volume=\frac{415g}{0.860g/mL}=483mL \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20density%3D%5Cfrac%7Bmass%7D%7Bvolume%7D%5Crightarrow%20volume%3D%5Cfrac%7Bmass%7D%7Bdensity%7D%20%5C%5C%20%20%5C%5C%20volume%3D%5Cfrac%7B415g%7D%7B0.860g%2FmL%7D%3D483mL%20%5Cend%7Bgathered%7D)
Therefore, 483 mL of the cleaning solution are used to clean hospital equipment.
Answer:
KCl is the answers for the question
Explanation:
please give me brainlest