Which one of these is a chemical change?

A.) Melting Ice

B.) Making powdered juice

C.) Cutting paper

D.) Burning a log

What is electric current measured in

If a neutral atom loses 2 electrons, what will happen to the atom's electrical charge? A. It will remain neutral B. It will become positive C. It will become negative D. It will double

A parallel-plate capacitor connected to a battery becomes fully charged. After the capacitor from the battery is disconnected, the separation between the plates of the capacitor is doubled in such a way that no charge leaks off.

What are three sources of family stress? Physiology and Health question ...

As a clinical chemist in charge of the testing of blood samples. You are required to mix a solution of sodium chloride with water in the ratio of 2:5.

A trained attack octopus can crawl at a velocity of 0.3m/s. If the octopus crawls towards its victim for 30 seconds, what is the change in position (or distance) that the octopus crawled?

Which profession is responsible for a planes design? A) Aerospace engineering B) Aerospace mechanic C) Pilot D) Flight attendant

Distracted driving laws have been put in place due to scientific studies that have shown the dangers associated with wireless technology. DDT. plastics. vaccines.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, the current through the resistor is (1) halved (3) quartered (2) doubled (4) quadrupled

If it takes 20n to move a box, how much power will be needed to move the box a diatance