Answer:
poop
Explanation:
poopy sorry needed points.
Answer:
100 J of energy are needed to heat the copper from 20∘C to 80∘C .
Answer:
B. 3+
Explanation:
When Fe²⁺ loses an electron, it becomes an Fe³⁺ ion.
The loss of an electron in an atom makes the atom becomes positively charged. Further losing electrons makes the atom more positive.
For the given ion;
Fe²⁺ if it loses an electron more, it becomes Fe³⁺.
The expression is given as:
Fe²⁺ → Fe³⁺ + e⁻
Answer:
Steam because steam pushes out and ice stays dormant.
Explanation: