It is an irreversible change because the saw dust cannot be rejoined to make the wood again.
No, converting wood into sawdust is an irreversible change because the physical structure of the wood is permanently altered during the process. Once wood is broken down into sawdust, it cannot be easily converted back into its original form.
No, it is not considered a Dust Bowl state. Though heavy droughts led to the the Dust Bowl, not every state experiencing a drought also experienced severe dust storms. States that are considered to have experienced these severe dust storms are Colorado, Kansas, New Mexico, Oklahoma and Texas. Iowa, however, is listed as a state experiencing a drought during the Dust Bowl era, it is just not classified as having severe dust storms.
No, 'atmosphere' is NOT a change at all! It is a mixture of gasses and dust, mist or rain.
if the composition of the air would change if the dust would be replaced from nanophase ferric oxides
There would be lots of dust and ash
No, converting wood into sawdust is an irreversible change because the physical structure of the wood is permanently altered during the process. Once wood is broken down into sawdust, it cannot be easily converted back into its original form.
There are approximately 1.96 x 10^20 dust particles in 2.45 grams of dust. This is calculated by dividing the total mass of dust by the mass of each particle and converting it to dozens.
No, dust settling out of the air is a physical change, not a chemical change. It is a result of gravity causing the dust particles to fall out of suspension in the air without any chemical reactions occurring.
The dust filter is located below the glove compartment.
No, it is a physical, not chemical change.
Filtering air to remove dust and pollen is a physical change. This is because the process does not alter the chemical composition of the air or the dust/pollen particles. Instead, it simply separates the particles based on their physical properties.
Put on sunglasses.
Yes - dust is considered a colloid. A colloid is a substance microscopically dispersed evenly throughout another substance. Dust is an aerosol - it is a colloid suspension of fine solid particles in gas.
Filtering air to remove dust and pollen is a physical change because the process does not alter the chemical composition of the dust and pollen particles. It simply separates them from the air through physical means, such as using a filter.
Any fine particulate is bad for the lungs as the material adheres inside the lung and decreases gas-exchange. In some cases, as with coal dust, the damage is irreversible over time.
Yes, there is a difference. "Into dust" indicates a transformation or change from a different state into dust, while "unto dust" emphasizes a movement towards or a return to dust as a final destination or end result.
No, it is not considered a Dust Bowl state. Though heavy droughts led to the the Dust Bowl, not every state experiencing a drought also experienced severe dust storms. States that are considered to have experienced these severe dust storms are Colorado, Kansas, New Mexico, Oklahoma and Texas. Iowa, however, is listed as a state experiencing a drought during the Dust Bowl era, it is just not classified as having severe dust storms.