Answer:To solve for time, divide the distance traveled by the rate. For example, if Cole drives his car 45 km per hour and travels a total of 225 km, then he traveled for 225/45 = 5 hours.
Explanation:
Answer:
B. This explains how two noble gases' molecules can have an attractive force between them.
C. This explains why long hydrocarbon chains have relatively high boiling points.
Explanation:
Temporary dipole moments are weak intermolecular force of attraction between two or more compounds. They are the weakest of intermolecular forces. They form when non-polar molecules becomes polar due to the constant motion of their electrons. This may lead to an uneven charge distribution at an instant.
When this occurs, the molecule has a temporary dipole. The dipole can induce neighboring molecules to be distorted and form dipoles as well.
- Two noble gases can exhibit this bonding attraction usually when at low temperature. The temporary dipole cause a temporary charge separation and can lead to attraction.
- Long hydrocarbons of long chains also exhibits this bonding which can cause a rise in their boiling point.
- Ammonia and nitrogen gas will exhibit hydrogen bonding, a strong dipole - dipole attraction.
- Hydrogen fluoride and methanol has hydrogen bonds likewise dimethyl either and acetone.
Neutral atoms get smaller as you move across the periodic table from (left to right) because the atom increases in electrons. The more electrons, the bigger the effective nuclear charge (electron and proton attraction) and so basically the atom shrinks.
Answer:
probably the sun
.
Explanation:
because the sun's heat result to evaporation
Answer:
Endothermic reaction chemical equation
Reactnt A + Reactant B + Heat (energy) ⇒ Products
Exothermic reaction chemical equation
Reactnt A + Reactant B ⇒ Products + Heat (energy)
Explanation:
Endothermic Reaction
An endothermic reaction is a reaction that reaction that requires heat before it would take place resulting in the absorption of heat from the surrounding that can be sensed by the coolness of the reacting system
An example of an endothermic reaction is a chemical cold pack that becomes cold when the chemical and water inside it reacts
Exothermic Reaction
An exothermic reaction is one that rekeases energy to the surroundings when it takes place. This is as a result of the fact that the combined heat energy of the reactants is more than the chemical heat energy of the products. An example of an exothermic reaction is a burning candle
