States of Matter
What is the state of matter that has the MOST kinetic energy?
Gases
What is solubility?
The ability of a substance to form a solution when placed into a liquid.
What is an atom?
The smallest particle of matter (of stuff)
What is the difference between chemical and physical process?
Chemical: change in chemical composition
Physical: change in physical properties
What is Miss Majo's favorite subject in the world?
Science - Brains!
What is the name of the process by which a solid turns into a liquid?
Melting!
Milk + Milo powder
Which is the solvent, which is the solute?
Milo powder is the Solute
Negative
Name all the pins that Miss Majo uses in her card holder
Brain, molecule of dopamine, elmo, groot, my dog, another brain (lamp), el principito and a bunny
What is the state of matter that has definite volume but not definite shape?
Liquids!
Why is water considered a POLAR molecule?
What is the name of the following atoms:
Na
Cl
O
H
C
Sodium
Chlorine
Oxygen
Hydrogen
Carbon
Name two examples of chemical changes
Rusting, flammable (burning something), cooking, chemical reactions (new substances formed).
What is Miss Majo's full name? Need to include both last names
Maria Jose Navarro Gomez
Why is that solids maintain a rigid shape while liquids and gases don't?
Particles are arranged in patterns.
Why when we mix some substances, a solid product is formed (precipitate)?
Because they are not soluble with one another (they cannot make a solution).
Why is the oxygen atom negative in the water molecule?
Because it pulls electrons from hydrogen.
What are three indicators that a chemical reaction has happened?
What is Miss Majo's car color?
Red
What is the name of the process by which a gas turns into a solid?
Describe what happens when salt is added to water. Describe this in terms of the interactions between molecules.
The negative oxygen of water pulls on the positive Na (Sodium), and the positive hydrogen pulls on the negative Cl (chlorine)
Why does the molecule of salt NaCl is formed? Why is Na positive and Cl negative?
Because no new substance is formed, no chemical reaction happens, it is reversible.
What is Miss Majo's favorite sport?
Skiing!