A compound that changes color when it is in contact with an acid or base is called

The population of the world is: increasing decreasing no longer changing

A boy weighing 25 kg sits in a 1000 kg car at a speed of 15 m/s. What is the total momentum of the car and the boy? A) 375 kg m/s B) 14625 kg m/s C) 15000 kg m/s D) 15375 kg m/s

A moving train comes to a stop at the station. What happened to make the train change motion? 1) The train experienced an unbalanced force. 2) The train experienced a balanced force. 3) The train would stop with or without forces.

Which statement best describes how to predict the formula of a stable ionic compound? Use the same number of cations as anions so that the compound is neutral. Use more cations than anions so that the compound is positively charged.

Which cities are susceptible to earthquake activity

Is ice cream a mechanical mixture or solution why?

Which term is used to describe the attraction that an oxygen atom has for the electrons in a chemical bond?

Suppose you wanted to dissolve 109 g of sodium carbonate in enough water to make 6.00 L of solution. What is the molarity of this solution?

0.0055 in scientific notation

Mineral oil dissolves in hexane but not in ethanol