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What type of chemical reaction requires the absorption of energy or heat from an external source for the reaction to actually occur?
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As a basic unit of matter, _______ cannot be divided into simpler substances, by ordinary chemical means.
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Foundations

Chapter 6

QuestionAnswer
What type of chemical reaction requires the absorption of energy or heat from an external source for the reaction to actually occur? Endothermic reactions
As a basic unit of matter, _______ cannot be divided into simpler substances, by ordinary chemical means. ATOMS
Volatile organic compounds contain _____ and evaporate very easily. Carbon
Among the following choices acids would most likely be used to ______ Exfoliate the skin
An example of an elemental molecule is ______ Atmospheric oxygen
What type of chemical reaction balances, pH and results in the production of water and a salt? Acid ALKALI neutralization reactions
Oxidation and reduction always occur simultaneously and are referred to as _____ reaction. REDOX
Rusting, iron and burning wood are examples of a change and what type of properties? Chemical changes
An example of a physical change is ________ Ice melting to water
When oxygen is chemically combined with a substance, the substance is _____ Oxidized
The safety data sheet (SDS) contains ____ categories of information. 16
H is the symbol for which element? Hydrogen
Which of the following are the basic building blocks of all matter? ATOMS
On a safety data sheet(SDS) which category would include risks of exposure, related symptoms, and acute and chronic effects? Toxicological information
The location used for mixing chemicals must be ______ Well vented
Alkalis tend to _____ the hair. Soften and swell
Which of the following is defined as anything that occupies space (volume) and has mass (weight)? Matter
There are 118 different elements known to science today. How many of these are naturally occurring on earth? 98
____ refers to either the loss of oxygen or the addition of hydrogen period. Reduction
As part of the safety data sheet (SDS) categories, first aid measures include important symptoms/effects, as well as ______ First aid instructions
______ as alkalis, are compounds of hydrogen, a metal and oxygen. Basis
What does a PH below seven indicate? Acidic solution
The letters PH denote _____ which is the relative degree of acidity or alkalinity of a substance. Potential hydrogen
A ______ is a stable, uniform mixture of two or more mixable substances that is made by dissolving a solid, liquid or GASEOUS substance in another substance. Solution
What is the average pH for hair and skin? 5
As an example of water– in – oil EMULSION is ____ Cold cream emu lion lion
Which of the following allows oil and water to mix or emulsify by reducing surface tension? SURFACTANTS0 my gosh
Solutions that do not contain water, such as alcohol or oil, do not have _____ PH
A ______ charged ion is called AN ANIO Negative
An unstable physical mixture of undissolved particles in a liquid, such as calamine lotion, is a: Suspensions
Water-in-oil eMULSIONS feel _____ then oil-in-water EMULSIONS. Greasier
The pH scale measures the concentration of hydrogen ions in acidic and alkaline ______ solutions. Water-based
Which of the following is an example of a pure substance? Salt
The tale of a SURFACTANT molecule is_____ or oil loving Lipophilic
The pH scale is ______ Logarithmic
______ is the chemical reaction that combines a substance with oxygen to produce an oxide. Oxidation
_____ are examples of EMULSIONS used in beauty services. Facial creams
A reducing agent ______ ADDS hydrogen to the chemical compound
Created by: princesalove
 

 



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