When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?

a. a balanced set of forces

b. stable factors

c. frictional force

d. unbalanced forces

How man moles of Al2O3 are formed in the reaction 4Al (s) + 3O2 (g) 2Al2O3 (s)

Avoltic cell prepared using aluminium and nickle has the flowing cell notation

Tornadoes can be identified and tracked using advanced instruments that can detect small changes in wind velocity and air pressure. What benefit do these instruments provide? A. They can predict tornadoes weeks in advance. B.

Why is it so hard to dispose of nuclear waste

When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a sculpture of a horse. Which type of chemical reaction is Brianna most likely explaining?

Planet X is a planet in our solar system. Planet Y is a dwarf planet. Identify their characteristics.

3/4 / 100 as a decimal and a percentage?

What is the net ionic equation for AgNO3 (aq) + Na2SO4 (aq)

What does it take to prove a hypothesis false? O A. It is impossible to prove a hypothesis false O B. At least ten examples O C. One counterexample O D. A poorly stated question

We dissolve 5g of sugar, C12H22O11, in water to make 1L solution. What is the concentration of this solution expressed as molarity.