Lessons Flashcards
Hypothesis definition
A testable statement about the world that can be used for further experiments
What is theory
A description of the world That’s met many observations and experimental tests.
What is a law
A group of theories that’s been tested
What is the sulentific process
Observation,hypothesis, experimental method, data collection, analysis, results, and conclusion
Won’t ore the three types of bonding
Hydrogen, covalent, ionic.
What are isotopes
Elements that have different amounts of neutrons but same amount of protons
What is pH
The level of acidity a substance has. Can be between 0-14 with 7 being neutral
Why is the rule of octet
A element wants to gain electrons in order for their last shell to have 8 and look like a noble gas.
What are the most abundant elements in the universe?
Nitrogen, carbon, phosphorus, aluminum, sodium, hydrogen, oxygen, calcium, silicion
What is an ionic bond
A highly electronegative atom pulls electrons away from a low electronegative atom
What is a hydrogen bond
Bond between a negative end of one molecule and the positive hydrogen end of another molecule
What is a covalent bond
2 atoms share one or more pairs of electrons to attain a stable lectern configuration
What is van der walls interaction
Attractions between oppositely charged atoms
What are the characteristics of water
High heat capacity, high heat of vaporization, cohesion, adhesion, hydrophobic and hydrophilic, and a crystallized structure
What is a acid
The donation of hydrogen ions to their surroundings