Anickel is about 2 millimeters thick, or 2/1,000 of a meter how many nanometers is this

This is a unit conversion problem. Nm (nanometer) is smaller than mm (millimeter).

1 mm = 1/10³m = 1 x 10⁻³ m

1 nm = 1/10⁹ m = 1 x10⁻⁹ m

1 m = 1 x 10⁹ nm

Hence, 2 mm = 2 x 10⁻³ m

Then we can convert 2 x 10⁻³ m to nm by multiplying with 10⁹.

Then 2 mm = 2 x 10⁻³ m = 2 x 10⁻³ x 10⁹ nm = 2 x 10⁶ nm.

Hence, the thickness of nickel is 2 x 10⁶ nm.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.