Match the key terms with the following descriptions. (a) a measure of the quantity of matter (b) a characteristic of a substance involving the possible transformations that the substance can undergo to produce a new substance (c) a combination of two or more substances that can be separated by physical means (d) a pure substance that cannot be broken down into simpler stable substances in a chemical reaction (e) �le capacity to do work or to transfer heat (f) a characteristic of a substance that can be observed without changing its composition (g) �le physical state in which matter has no characteristic shape but takes the shape of the �lled portion of its container (h) the ratio of the mass of a substance to its volume (i) a mixture with uniform composition (j) �le physical state of matter Characterized by a �xed shape and low compressibility
Match the key terms with the following descriptions. (a) a measure of the quantity of matter (b) a characteristic of a substance involving the possible transformations that the substance can undergo to produce a new substance (c) a combination of two or more substances that can be separated by physical means (d) a pure substance that cannot be broken down into simpler stable substances in a chemical reaction (e) �le capacity to do work or to transfer heat (f) a characteristic of a substance that can be observed without changing its composition (g) �le physical state in which matter has no characteristic shape but takes the shape of the �lled portion of its container (h) the ratio of the mass of a substance to its volume (i) a mixture with uniform composition (j) �le physical state of matter Characterized by a �xed shape and low compressibility
Solution Summary: The author explains the definition of a substance's physical property, which is the ability to do work or transfer heat, and how it can be measured without altering its composition.
Match the key terms with the following descriptions.
(a) a measure of the quantity of matter
(b) a characteristic of a substance involving the possible transformations that the substance can undergo to produce a new substance
(c) a combination of two or more substances that can be separated by physical means
(d) a pure substance that cannot be broken down into simpler stable substances in a chemical reaction
(e) �le capacity to do work or to transfer heat
(f) a characteristic of a substance that can be observed without changing its composition
(g) �le physical state in which matter has no characteristic shape but takes the shape of the �lled portion of its container
(h) the ratio of the mass of a substance to its volume
(i) a mixture with uniform composition
(j) �le physical state of matter Characterized by a �xed shape and low compressibility
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).
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The structure of the bicarbonate (hydrogen carbonate) ion, HCO3-, HCO3
best described as a hybrid of several contributing resonance forms, two of which
are shown here.
HO
:0:
:Ö:
HO
+
Bicarbonate is crucial for the control of body pH (for example, blood pH:
7.4). A more self-indulgent use is in baking soda, where it serves as a
source of CO2 CO₂ 2 gas, which gives bread and pastry their fluffy
constituency.
(i) Draw at least one additional resonance form.
=
(ii) Using curved "electron-pushing" arrows, show how these Lewis structures may
be interconverted by movement of electron pairs. (iii) Determine which form or
forms will be the major contributor(s) to the real structure of bicarbonate,
explaining your answer on the basis of the criteria in Section 1-5.
Which of these is the best use of a volumetric flask?
measuring how much liquid it contains
delivering a precise amount of liquid to another container
holding solutions
making solutions of precise concentration
You're competing on a Great British television game show, and you need to bake a
cake. The quantity for each ingredient is given in grams, but you haven't been
given a kitchen scale.
Which of these properties would correlate with the mass of a baking ingredient like
eggs or milk? Check all that apply.
depth of color
viscosity
volume
density
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What are CHNOPS? These Chemical Elements = 98% of Life | Biology | Biochemistry; Author: Socratica;https://www.youtube.com/watch?v=w90wFlR53VM;License: Standard YouTube License, CC-BY