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molecular orbital theory - correct answer volume of space where you're most likely to find e- that form bonds IN A MOLECULE what's the symbol for bonding molecular orbital? - correct answer sigma what's the symbol for anti-bonding molecular orbital? - correct answer sigma* how do e- in a bonding molecular orbital interact? - correct answer ...

Which has a larger atomic radius? Mg or Ar and why. - correct answer Mg, because its valence electrons are not as strongly attracted towards the nucleus as those in Ar. REASONING: The effective nuclear charge on Mg is smaller -on Ar the electrons are more strongly attracted and therefore the electron cloud shrinks in towards the nucleus until the e-e repulsions come into effect. Why do covalent bonds form? Give Reasoning. - correct answer ...

Air and smoke - correct answer Which of the following contains atoms? Air, Light, Smoke, Heat Cathodes made of multiple different metals emit electrons. - correct answer Dalton's atomic theory proposed that atoms are indivisible. Which piece of evidence forced a revision of this model of the atom? Scientific Theory - correct answer What is this an example of? The molecular level prop...

Scientific Explanation - correct answer Claim, Evidence, Reasoning Scientific Theory - correct answer -Best available explanation -falsifiable, can change over time -EXPLAINS a phenomenon (why) Law vs. Theory - correct answer Law: DESCRIBES a phenomenon (what) Theory: EXPLAINS a phenomenon (why) Dalton's Atomic Theory - correct answer 1. Eleme...

Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - correct answer Wavelength and Frequency are related by the speed of light, which is a constant. Draw and compare two waves of different frequency, wavelength, or amplitude. - correct answer Long Wavelength = Low Frequency Short Wavelength = High Frequency Calculate any one (frequency, wavelength, or velocity) given the other t...

Dalton's Atomic Theory - correct answer Determined that elements are composed of small, indivisible, and indestructible particles called atoms. Claimed that all atoms have the same mass and are identical (false). JJ Thompson - correct answer Discovered the electron. Used the Cathode Ray Tube consisting of 2 electrodes which moved particles through the anode (middle of the tube). Changing the metal in the anode didn't ...

Scientific Models help us... - correct answer explain how something happened and predicting what will happen Scientific Explanation - correct answer 1) Claim- the target of your explanation 2) Evidence- the data or scientific principle you use to support your claim 3) Reasoning) the connection between your claim and evidence Scientific Theory - correct answer -Best available explanati...

Explain what process is responsible for the lines of e/m radiation on an emission spectrum. - correct answer Electrons change from a higher energy to a lower energy and emit a photon. Why are the lines different for each element on the emission spectrum - correct answer Each element has electrons of different energies. The energy changes between the energy levels are also different. If a spectrum was taken on the emissio...

scientific question - correct answer can be answered by doing experiments, making observation, taking measurements, etc. in a replicable way Lights acts as what? - correct answer Particle and wave. scientific model - correct answer drawing, graph, diagram, equation. represent many chemical entities. Wavelength - correct answer The distance (m) of wa...

T/F: Covalent bonds are present only when atomic orbitals interact constructively. - correct answer True. Binding in Diamond - correct answer Each carbon forms 4 bonds to 4 identical carbons; tetrahedral; sp3 Valence Bond Theory - correct answer The idea that covalent bonds are formed when orbitals of different atoms overlap. T/F: Electrons are localized in molecular orbital. - corre...

Which atomic model(s) would you be able to use as evidence to support the claim "atoms are composed of mostly empty space?" - correct answer Rutherford's Planetary model "Does the planet Venus have phases like the moon?" Is this question a scientific question? - correct answer Yes because it can be tested through observations and experiments. As two protons move toward each other, the potential energy of t...

The statement "If I add cold milk to hot coffee the temperature will decrease," is a? - correct answer Claim, always include an explanation and reasoning to the claim. Scientific Model - correct answer Models are used to make testable predictions How much is a picometer? - correct answer 0.1 x 10^-12 meters Atomic Force Microscopy/ Scanning Tunneling Microscopy - correct answer...

Identify and explain the similarities and differences between atoms, molecules, elements, and compounds - correct answer Atoms: the smallest unit of ordinary matter that forms a chemical element Molecules: electrically neutral group of two or more atoms held together by chemical bonds. Elements: consists only of the same atoms, with the same number of protons Compounds: a chemical substance composed of atoms from 2+ elements held together by chemical bonds ...

Constructing a Scientific Explanation - correct answer 1. Claim (target of explanation) 2. Evidence (data used to support) 3. Reasoning (connection between claim and evidence) Scientific Theory - correct answer explains how/why; best available explanation of existing evidence; makes testable predictions; is falsifiable; may change over time with new evidence Difference Between Law and Theory - correct answer ...

What is inline pumping? - correct answer A stretch of the supply line where the hydrant is located before the fire In a 4 man engine, who is the hose and hydrant FF? - correct answer Hose = Back Up Hydrant = Control In a 5 man engine, who is the hose and hydrant FF? - correct answer Hose = Door Hydrant = Control What is done after the hydrant is deemed serviceable for in line pumpi...

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Lesson 1: Stages of Development - correct answer Child psychologists use ___ to develop theories of child development. - correct answer observations What two things must be determined when following guidelines for making observations of children? - correct answer the subjects; the activity to observe Why do you think it is important to record details of a session of observation? - c...

Why are most children self-centered at eighteen months? - correct answer Because during infancy, parents usually always meet the child's needs Identify and describe two causes for toddlers' negativism. - correct answer Children want to feel independent Children get frustrated that they are not physically able to complete all the tasks they want to When are temper tantrums likely to start? At what age do they usuall...

Theory - correct answer A set of explanations of how children develop and learn. Constructivism - correct answer Theory that emphasizes the active role of children developing their understanding and learning. Based on Vysgotsky's ideas. Active learning - correct answer The view that children develop knowledge and learn by being physically and mentally engaged in learning activities. ...

The effort made by the mother's body to move the baby from the uterus and through the birth canal is called _____. - correct answer Labor Babies that cannot be passed through the birth canal are delivered by _____________. - correct answer Caesarean Section After birth, babies ____ the care and love of an adult. - correct answer Need Most infants are able to crawl and speak a few ...