Calcium and boron react to form calcium boride, as represented by the chemical equation below.
Ca + 6 B → Cabo
Which type of reaction is shown by this equation?
A. double displacement
B. single displacement
C. combination
D. decomposition

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

The reason a penny thrown straight up inside a bus will come back to your hand is that you,the bus,the air inside the bus, and the penny are all moving at the same velocity. true or false