Cutting a glass tube is a physical change because the cut glass tube still has the same chemical composition as the uncut tube. Nothing has changed except the physical appearance of the glass tube.
that depends. changing the shape of glass is physical but if its a glass that can be effected by heat then if can be chemical. i would say its both.
glass is highly brittle. it is used for insulation and decoration.
I am in problem plz answer this question plzz😭
A watch glass is sometimes used to measure small amounts of solids and evaporate miscellaneous liquids/ chemicals in a laboratory.
by sucking a penis
by sucking a penis
glass can produce a refraction (bending) of light
glass can produce a refraction (bending) of light
Glass bending procedure without dents
Process of glass bending Bending of glass is a physical process. Glass having high melting point can de bend to desiered shape these are known as borosil glasses,constant heat along with pressure in desiered direction is applied .pressure should be lower then the effect and temparature of heat other wise there are chances of breaking or cracking of glass
Bending away from the normal
Cutting a glass tube is a physical change because the cut glass tube still has the same chemical composition as the uncut tube. Nothing has changed except the physical appearance of the glass tube.
Simple.... Refraction. Look it up ^_^
that depends. changing the shape of glass is physical but if its a glass that can be effected by heat then if can be chemical. i would say its both.
TUBES going left to right: Attach a down and right bending tube on #1 (first column) Do not attach anything to #3 (second column) Attach a right bending, then down bending, then right bending tube on #3 (third column) Attach a right bending tube on #1 (fourth column) Attach a right bending tube on #2 (fifth column) Attach a left bending, then straight tube on #2 (sixth column) Do not attach anything to #3 (seventh column). GLASSES Place a vertical 3 glass directly under the #3 tube in the second column. Place the horizontal 3 glass directly on top of horizontal 4 glass stretching from 2nd-4th column. (leaving only one space open on the 4 glass in the fifth column) Place the vertical 2 glass directly next to the 4 glass in the sixth column. Place the vertical 3 glass directly next to the 2 glass in the seventh column.
Because if you didn't the glass beaks MUCH easier, and will injure you.