Reaction won't occur
Because the activity of Cu is less than Al
Answer:
D. Scientific notation is a way of writing large and small numbers
Answer:
1. an educated guess
2. data
3. what changes in experiment
4. what stays the same in both groups
5. the group where nothing changes, normal
6. group with independent variable, what's being tested
A, a car parked in the sun with its windows closed.
The greenhouse effect is where there is so much pollution in the air, the heat from the sun cant escape the earth. just like a parked car with its windows closed, the heat generated inside of it will build up. all three other examples allow the heat to move freely.
