What is A change in which one or more substances are converted into a new substance

Which of the following best describes a consumer

What instrument measures the flow rate of a liquid by comparing the flow through two sections of tapered pipe?

Why can we sometimes hear noises in the stomach during digestion?

Estimate the volume, v, of one sodium atom (na) using its metallic radius of 186 pm. express your answer with the appropriate units.

Arrange the following according to increasing density; solid, liquid, and gas

What product (s) forms at the cathode in the electrolysis of an aqueous solution of k2so4?

What element is used as a shield to protect people from radioactive substances?

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? A. gamma rays B. visible light C. microwaves D. radio waves E. x-rays

A farmer uses water to irrigate his potato crops. Which roles of water does this examplify

How was helium first discovered?