Ca2 ; Z=20
1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
Answer:
Explanation:
Hello,
This is a typical case in which the following chemical reaction is carried out:
Since 50 mL of a 0.091M solution of HCl is employed, we perform the shown below stoichiometric calculation to find the sodium hydrogen carbonate grams that must be ingested by the woman:
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1) As carbon dioxide changes from solid state to gaseous state, the particles gain energy and move faster.
The molecule of CO2 gain energy which results in greater separation of each other and freer and faster movement
2) When a substance undergoes a change of state its mass does not change
Answer: Studying stem cells can help scientists understand more about how the body works and how disease develops and affects the body so yes
Explanation: Studying stem cells can help scientists understand more about how the body works and how disease develops and affects the body. Working with stem cells may help researchers better understand different diseases and conditions, and find new treatments.
The answer is core- mantle - crust :)
