Answer:
D
Explanation:
Firstly it is pertinent to know that, Electric force are due to the movement of electrons that is due to its gain and loss. This phenomenon is based on static electricity.
When the glass ruler is rubbed over the woolen sweater, the wool gets positively charged and the ruler gains electron to form negative charge.
Now if this charged is not earthed, the negative charged ruler attracts the uncharged bits of paper, as a result of which the paper gets attached to the ruler.
I believe the correct response is A. A solution with a pH close to 14 is considered a strong base.
You can predict it by measuring the weight of the spherical object and measuring the liquid (mL) and subtracting finding the volume
Answer:
NaHCo3+Na2So4---Nna2So4+H2O+CO2
Copper will have the greatest density, followed by calcium, another metal. Carbon will be the third most dense followed by chlorine, which, as a gas, will be MUCH less dense than the other 3
