Answer:
Bromine
Explanation:
Bromine with an atomic number of 35 acquires one electron to attain 36 electrons. This makes it isoelectronic with krypton.
Answer:
manipulated variabl
Explanation:
In a scientific experiment, the one variable that is purposely changed to test a hypothesis is called the manipulated variable
A because chem is so cool and when you do that it equals the correct answer
Physical Change because a new substance was not created and if it was a chemical change, a new substance would have to be created.
Freezing
Explanation:
This change in state when surface of a lake changes to hard ice is known as freezing.
- When a solid is heated, it melts and changes to a liquid. On further heating, it changes to vapor and the randomness increases.
- When a liquid is cooled below its freezing point, it changes to a solid such as ice for water.
- The phase change is known as freezing.
Learn more:
Phase change brainly.com/question/1875234
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