What is the key difference between a compound and mixture

Which is a characteristic of a strong base

In the explosion of hydrogen filled balloon. 10 g of hydrogen reacted with. 8 g of oxygen. How many grams of water vapor are formed?

Explain how an earthquake that affects the fossil bed would make it more difficult to determine the age of its fossils.

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.10 kg of water at 37.5 degree C. During the reaction 125. kJ of heat flows out of the flask and into the bath.

When an organism from a higher trophic level eats an organism from a lower trophic level all of the energy is converted to mass. all of the energy is converted to heat. most of the energy is converted to mass. most of the energy is converted to heat.

A 1 liter solution contains 0.227 M acetic acid and 0.302 M potassium acetate. Addition of 0.113 moles of sodium hydroxide will: (Assume that the volume does not change upon the addition of sodium hydroxide.)

How do newtons laws relate to egg drop project

Terrlel uses a microscope to look t slides of plant cells. he sees a cell with two nuclei that have visible chromosomes. which stage of cell division is this cell?

Read the following chemical equation. Fe (s) + O2 (g) → Fe3 + O2 - What most likely happens during this reaction? Iron loses three electrons. Iron gains three electrons. Oxygen loses two electrons. Oxygen gains two electrons.

What is a possible charge of an anion? +3 -2 0 +1