Answer:
A, E
Step-by-step explanation:
We can use rules of fractions and negatives to determine that B, C, and D are incorrect and A and E are correct.
Answer:
your answer will be option D !!
Step-by-step explanation:
123 + x = 180
x = 180 -123
x = 57
have a great day and good luck ^_^
Answer:
![{ \tt{pH = - log[H {}^{ + } ]}} \\ pH = - log(4.2 \times {10}^{ - 5} ) \\ pH = 4.38](https://tex.z-dn.net/?f=%7B%20%5Ctt%7BpH%20%3D%20%20-%20%20log%5BH%20%7B%7D%5E%7B%20%2B%20%7D%20%5D%7D%7D%20%5C%5C%20%20pH%20%3D%20%20-%20%20log%284.2%20%5Ctimes%20%20%7B10%7D%5E%7B%20-%205%7D%20%29%20%20%5C%5C%20pH%20%3D%204.38)
Step-by-step explanation:
H
Answer:
Pretty sure its 5700! not sure tho..
