1
Property of substances and materials that are ignited or burned by applying heat or fire.
2
Some explosive dusts include.
3
The _________ temperature of a flammable gas is the temperature at which an ignition will occur, even without a spark or external flame.
4
Iron is included in powders _______
5
It is the lightest, most abundant and explosive gas on earth.
6
This gas is in the atmosphere with a concentration of 78%
7
It has lower concentration in the atmosphere after nitrogen.
9
The high levels of _______ increase the flammability of materials and gases.
10
It is a gaseous chemical element, its symbol is Kr and it is a noble gas.
11
How many parts per billion does xenon represent in the atmosphere?
12
It is a planet of the solar system, known as the gas giant, contains approximately 90% hydrogen and 10% helium.
13
He was a chemist of Flemish nationality, he invented the word gas in 1650.
14
It does not need ______ to produce autoignition temperature of a flammable gas.
18
Is the most reactive and most electronegative of the elements.
19
It is the rarest non-radioactive gas element in the earth's atmosphere.
20
It has noble gas properties and is part of the composition of jupiter having the lowest concentration.
22
Its atomic weight is 222 units of atomic mass.
24
Who establishes the safety standards for the employee and manufacturer with regard to explosive atmospheres?
25
Under certain conditions of temperature and pressure, their molecules interact only weakly with each other, without forming molecular bonds, adopting the shape and volume of the container that contains them.
26
Its smell is that of decaying organic matter, like rotten eggs.
