Do you need help with all 3 questions or just the one that’s unanswered?
Answer:
You'll find someone. There's a someone for everyone.
Explanation:
And I know how you feel.
Answer:
Molarity= 1.69M
Explanation:
m= 14.8, Mm= 35, V= 0.25dm3, C= ?
Moles = m/M= C×V
Substitute and Simplify
m/M= C×V
14.8/35= C×0.25
C= 1.69M
Answer:
liquid
a semi permeable membrane
oxygen
Explanation:
plz give me brainiest
Answer: With atomic number 20, calcium atoms have 20 positive protons, and the ion has only 18 electrons, which means the net charge is +2. Calcium ions are essential for muscle contractions, nerve impulses, and bone maintenance.
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