Explanation: The first one
Source: it literally has fusion in the name
Answer:
Calcium bromide is the name for compounds with the chemical formula CaBr2(H2O)x.
Hammer and screwdriver perform different tasks because they are both simple machines.
A machine is simply a device that can be used to perform a task. This machine can be any physical system or device designed to perform a specific task.
The efficiency of the machine describes the easy with which each machine or tool is able to use input power to overcome a task.
Machines are designed to overcome a particular task with little effort in order to increase its efficiency.
Hammer and screwdriver, are both examples of simple machines.
Thus, Hammer and screwdriver perform different tasks because they are both simple machines.
Learn more here: brainly.com/question/21387235
