Match the key terms with the following descriptions. (a) �le smallest particle of an element that retains �le characteristic chemical properties of that element a change in which substances are converted into new substances that have compositions and properties different from those of the original (b) substances (c) anything that occupies space and is perceptible to the senses (d) a substance composed of two or more elements combined in de�nite proportions (e) a combination of atoms of one or more elements (f) a process Characterized by Changes only in �le physical properties of a substance not in its composition (g) the physical state in which matter has no �xed shape or volume but expands to �ll its container completely (h) �le energy possessed by an object because of its position (i) a tentative explanation for the properties or behaviour of matter that accounts for a set of observations and can be tested (j) the energy possessed by an object because of its motion
Match the key terms with the following descriptions. (a) �le smallest particle of an element that retains �le characteristic chemical properties of that element a change in which substances are converted into new substances that have compositions and properties different from those of the original (b) substances (c) anything that occupies space and is perceptible to the senses (d) a substance composed of two or more elements combined in de�nite proportions (e) a combination of atoms of one or more elements (f) a process Characterized by Changes only in �le physical properties of a substance not in its composition (g) the physical state in which matter has no �xed shape or volume but expands to �ll its container completely (h) �le energy possessed by an object because of its position (i) a tentative explanation for the properties or behaviour of matter that accounts for a set of observations and can be tested (j) the energy possessed by an object because of its motion
Solution Summary: The author defines a chemical change as the change in which substances are converted into new substances having different compositions and properties.
Match the key terms with the following descriptions.
(a) �le smallest particle of an element that retains �le characteristic chemical properties of that element a change in which substances are converted into new substances that have compositions and properties different from those of the original
(b) substances
(c) anything that occupies space and is perceptible to the senses
(d) a substance composed of two or more elements combined in de�nite proportions
(e) a combination of atoms of one or more elements
(f) a process Characterized by Changes only in �le physical properties of a substance not in its composition
(g) the physical state in which matter has no �xed shape or volume but expands to �ll its container completely
(h) �le energy possessed by an object because of its position
(i) a tentative explanation for the properties or behaviour of matter that accounts for a set of observations and can be tested
(j) the energy possessed by an object because of its motion
Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
10. Complete the following halogenation reactions for alkanes. Draw the structures of one of the
many possible products for each reaction. Name the reactant and product.
a)
CH₂- CH-CH2-CH3 + Br₂
CH₂
UV
UV
b)
+ Cl2
c)
CH3-CH₂
CHICHCHICH-CH
CH₂-CH₂
+ F2
UV
Which of the following processes involves the largest photon energy?
Group of answer choices
Electron promotion from n=2 to n=5
Electron relaxing from n=4 to n=3
Ionization of an electron from n=2
Ionization of an electron from n=4
Which of the following compounds does not match atomic ratio expectations in Mendeleev's 1872 periodic table?
Group of answer choices
NO2
Al2O3
SO3
CaO
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The Bohr Model of the atom and Atomic Emission Spectra: Atomic Structure tutorial | Crash Chemistry; Author: Crash Chemistry Academy;https://www.youtube.com/watch?v=apuWi_Fbtys;License: Standard YouTube License, CC-BY