FCTC questions with verified answers
, and are the phases of matter. There are states of matter. Ans✓✓✓ solid, liquid,
gas, 4
A [energy] is the basic SI unit that can express either thermal or mechanical
energy. Ans✓✓✓ joule
A backdraft occurs when a/an [compartment] compartment is opened introducing
fresh air. Ans✓✓✓ airtight
A mixture of two or more metals is a/an Ans✓✓✓ alloy
A solid consisting of atoms, molecules, or ions fixed in a regular geometric pattern
extending in all three spatial dimensions best describes a [matter1]. Ans✓✓✓
crystal
A stoichiometric mixture is a mixture of fuel and oxygen in ratios needed for
complete combustion with ______ residue of either component. Ans✓✓✓ no
A stretched rubber band is an example of potential energy. Ans✓✓✓ true
According to your textbook, there are [element1] known chemical elements.
Ans✓✓✓ 118
Acetylene (C2H2) is an extremely volatile gas that is very common in our society.
, - An ordinary welding cylinder contains gallons of acetone and about pounds of
acetylene.
- The flammable range is from to percent by volume.
- Fusible plugs are required for acetylene tanks that open at approximately
degrees Fahrenheit. Ans✓✓✓ 5.5
20
2.5
81
212
All physical substances contain chemicals. Ans✓✓✓ true
and are methods of heat transfer between bodies. is not an independent mode of
heat transfer but essential to describing fire phenomena. Ans✓✓✓ conduction
radiation
convection
Approximately how many meters was the Chinese bu? Ans✓✓✓ 1.67 Meters
Aromatic compounds include toluene, methylbenzene and ____________.
Ans✓✓✓ naphthalene
Avogardro's Number refers to the number of [number1] in the gram atomic mass
of any element. Ans✓✓✓ atoms
, and are the phases of matter. There are states of matter. Ans✓✓✓ solid, liquid,
gas, 4
A [energy] is the basic SI unit that can express either thermal or mechanical
energy. Ans✓✓✓ joule
A backdraft occurs when a/an [compartment] compartment is opened introducing
fresh air. Ans✓✓✓ airtight
A mixture of two or more metals is a/an Ans✓✓✓ alloy
A solid consisting of atoms, molecules, or ions fixed in a regular geometric pattern
extending in all three spatial dimensions best describes a [matter1]. Ans✓✓✓
crystal
A stoichiometric mixture is a mixture of fuel and oxygen in ratios needed for
complete combustion with ______ residue of either component. Ans✓✓✓ no
A stretched rubber band is an example of potential energy. Ans✓✓✓ true
According to your textbook, there are [element1] known chemical elements.
Ans✓✓✓ 118
Acetylene (C2H2) is an extremely volatile gas that is very common in our society.
, - An ordinary welding cylinder contains gallons of acetone and about pounds of
acetylene.
- The flammable range is from to percent by volume.
- Fusible plugs are required for acetylene tanks that open at approximately
degrees Fahrenheit. Ans✓✓✓ 5.5
20
2.5
81
212
All physical substances contain chemicals. Ans✓✓✓ true
and are methods of heat transfer between bodies. is not an independent mode of
heat transfer but essential to describing fire phenomena. Ans✓✓✓ conduction
radiation
convection
Approximately how many meters was the Chinese bu? Ans✓✓✓ 1.67 Meters
Aromatic compounds include toluene, methylbenzene and ____________.
Ans✓✓✓ naphthalene
Avogardro's Number refers to the number of [number1] in the gram atomic mass
of any element. Ans✓✓✓ atoms
