General, Organic and Biological
Chemistry Chapter 1 & 2
____________ depends of gravity, where as ______________ doesn't. - ANSWER Weight
depends on it
mass doesnt
1 grain (gr) is equal to _______mg - ANSWER 60 mg
1 ounce is equivalent to _________ ml - ANSWER 30 ml
1 Teaspoon (TSP) is equivalent to __________ ml/cc. - ANSWER 5 ml or 5 cc
A digit IS significant if it is what three things? - ANSWER - A non zero digit
- A zero between a non zero digit
- A zero at the end of a decimal number
A nutritional calorie (C) is __________ times larger than a calorie (c) - ANSWER 1000 times
larger
A pure substance can be classified as a ___________ or a ____________. -
ANSWER element or a compound
A ZERO is not a significant figure if ------> - ANSWER - if its at the beginning of a decimal
number
- A placeholder in a large number without a decimal point
Accuracy - ANSWER Refers to how close a measurement is to the real value.
Alpha particles are __________ charged particles with a _________ charge. -
ANSWER Positlvly charged with a 2+ charge
AMU mean ---> - ANSWER Atomic Mass Unit
Are all atomic nuclei radioactive? - ANSWER No
Atomic Weight - ANSWER Refers to the average mass of the atoms in a natural occurring
sample of the element.
Beta Decay - ANSWER Mass doesn't change! Atomic number increases on the right side by
one.
Beta particles are _______ charged particles with a _______ charge. - ANSWER Negatively
with a 1- charge
Can a mixture be separated into different components? - ANSWER Yes
Can an element be separated into different substances? - ANSWER No
Centi (c) - ANSWER c = 10^-2 or 0.01
, General, Organic and Biological
Chemistry Chapter 1 & 2
Chemical Change - ANSWER Changes the composition of a substance, also called a chemical
reaction.
Example: Combustion, rusting, oxidation
Compounds - ANSWER Pure substances made of 2 or more elements which are chemically
combined
Deci - ANSWER (d) 10^-1 or 0.1
Deci(d) means -------> - ANSWER Tenth
Each atom is composed of what? - ANSWER Subatomic particles
Elements - ANSWER Pure substances that consist of only one type of an atom.
Elements that spontaneously emit radiation from their nucleus are said to be ____________. -
ANSWER radioactive
Energy used to cause the temperature of an object to increase is called ___________. -
ANSWER Heat
Gamma Decay - ANSWER Will not change the mass number or the atomic number of the
product.
Giga (G) means -------> - ANSWER G= Billion
Homogenous mixture are also called what? - ANSWER A solution
How are chemical reactions represented? - ANSWER As chemical equations
How can radioisotopes be used in therapy? - ANSWER They are used to destroy diseases or
cancerous tissues
How do you measure the specific gravity of a liquid? - ANSWER A hydrometer
How does a heterogeneous mixture look? - ANSWER - It is a composition that is NOT
uniform
- Composition varies from one part of the mixture to another
Example- Blueberry muffin
How does a homogenous mixture look? - ANSWER The same throughout
How many substances does a pure substance contain? - ANSWER only one
Insultin - ANSWER A portion that is used by the body to regulate both carbohydrates and
fat metablolism
Law of Conservation of Matter - ANSWER States that in a chemical reaction atoms are
neither created or destroyed
Chemistry Chapter 1 & 2
____________ depends of gravity, where as ______________ doesn't. - ANSWER Weight
depends on it
mass doesnt
1 grain (gr) is equal to _______mg - ANSWER 60 mg
1 ounce is equivalent to _________ ml - ANSWER 30 ml
1 Teaspoon (TSP) is equivalent to __________ ml/cc. - ANSWER 5 ml or 5 cc
A digit IS significant if it is what three things? - ANSWER - A non zero digit
- A zero between a non zero digit
- A zero at the end of a decimal number
A nutritional calorie (C) is __________ times larger than a calorie (c) - ANSWER 1000 times
larger
A pure substance can be classified as a ___________ or a ____________. -
ANSWER element or a compound
A ZERO is not a significant figure if ------> - ANSWER - if its at the beginning of a decimal
number
- A placeholder in a large number without a decimal point
Accuracy - ANSWER Refers to how close a measurement is to the real value.
Alpha particles are __________ charged particles with a _________ charge. -
ANSWER Positlvly charged with a 2+ charge
AMU mean ---> - ANSWER Atomic Mass Unit
Are all atomic nuclei radioactive? - ANSWER No
Atomic Weight - ANSWER Refers to the average mass of the atoms in a natural occurring
sample of the element.
Beta Decay - ANSWER Mass doesn't change! Atomic number increases on the right side by
one.
Beta particles are _______ charged particles with a _______ charge. - ANSWER Negatively
with a 1- charge
Can a mixture be separated into different components? - ANSWER Yes
Can an element be separated into different substances? - ANSWER No
Centi (c) - ANSWER c = 10^-2 or 0.01
, General, Organic and Biological
Chemistry Chapter 1 & 2
Chemical Change - ANSWER Changes the composition of a substance, also called a chemical
reaction.
Example: Combustion, rusting, oxidation
Compounds - ANSWER Pure substances made of 2 or more elements which are chemically
combined
Deci - ANSWER (d) 10^-1 or 0.1
Deci(d) means -------> - ANSWER Tenth
Each atom is composed of what? - ANSWER Subatomic particles
Elements - ANSWER Pure substances that consist of only one type of an atom.
Elements that spontaneously emit radiation from their nucleus are said to be ____________. -
ANSWER radioactive
Energy used to cause the temperature of an object to increase is called ___________. -
ANSWER Heat
Gamma Decay - ANSWER Will not change the mass number or the atomic number of the
product.
Giga (G) means -------> - ANSWER G= Billion
Homogenous mixture are also called what? - ANSWER A solution
How are chemical reactions represented? - ANSWER As chemical equations
How can radioisotopes be used in therapy? - ANSWER They are used to destroy diseases or
cancerous tissues
How do you measure the specific gravity of a liquid? - ANSWER A hydrometer
How does a heterogeneous mixture look? - ANSWER - It is a composition that is NOT
uniform
- Composition varies from one part of the mixture to another
Example- Blueberry muffin
How does a homogenous mixture look? - ANSWER The same throughout
How many substances does a pure substance contain? - ANSWER only one
Insultin - ANSWER A portion that is used by the body to regulate both carbohydrates and
fat metablolism
Law of Conservation of Matter - ANSWER States that in a chemical reaction atoms are
neither created or destroyed
