Following the Law of Conservation of Mass, you simply add the mass of both substances. Thus, 160 grams + 40 grams = 200 grams. So, even if initially, they are in liquid and solid form, they would still have the same mass even if they change phases, owing to that they are in a closed space.
Ionic bond. Remember that Na really wants to get rid of its one valence electron, while Cl wants to get one electron to complete its valence shell. There's an electrostatic bond between these two ions, so hence it's ionic.
Answer:
Elephant Toothpaste
- When hydrogen peroxide and potassium iodide are mixed in proper proportions, the hydrogen peroxide decomposes very quickly.
- The soapy water traps the oxygen, a product of the reaction, and creates many bubbles.
- Foam is a kind of a mixture called a colloid - gas bubbles in a liquid.
- It produces foam but it also can produce heat.
Extra
Make Elephant Toothpaste
Pour 1/2 cup hydrogen peroxide solution, 1/4 cup dishwashing soap, and a few drops of food coloring into the bottle. Swish the bottle around to mix the ingredients. Set the bottle in a sink or outdoors or some other place where you won't mind getting wet foam everywhere.
In a separate container, mix a packet of active yeast with a little warm water. Give the yeast about five minutes to activate before proceeding to the next step.
When you are ready to do the demo, pour the yeast mixture into the bottle. The reaction occurs immediately upon the addition of the yeast.
I don't know if this will help but here you go.
More vegetables, more fruits, easier to use.
Answer:
Vanderwaals forces
Explanation:
CBr4 is a nonpolar molecule, nonpolar molecules usually possess vanderwaals forces between their molecules as their main attractive force.
CBr4 is nonpolar because the tetrahedral arrangement of the C-Br bonds cancel out the individual dipole moments of each C-Br bond thereby making the compound nonpolar, hence the answer above.