How does the law of conservation of mass apply to this reaction:Al+3HCl-->H2+AlCl3

Uniformitarianism Choose one: A. can be illustrated by scientists' seeing pillow lava forming only underwater, then theorizing that pillow lava found high in the mountains today did nevertheless form underwater. B.

How does electronic duster work

What are two ways thermal energy can be increased in a system?

What determines the properties of elements?

A 20 kg object is dropped from a very tall building. What is the weight of this objects? After 5 seconds, how has the object fallen and what is its speed at this instant?

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a

What is Nothing. (sorry i have been wondering this for a very long time)

What is the weight of a 15kg dog on earth?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.