Answer:
Explanation:
Your answer should be in the attached pdf
B .pure water it’s made up of oxygen and hydrogen “H2O”
1. Decreases by 4. (B)
2. The atomic number changes. (B)
3. 56/26 Fe. (C)
4. Potassium-40;t1/2=25 days. (B)
5. Takes place in the upper atmosphere. (A)
Answer:
24 a 2.85
Explanation:
HCl is a powerful acid so it completely ioniz in water