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Glass is hard because of its molecular structure. It is an amorphous solid, made up of tightly packed silicon dioxide molecules, which gives it its rigid and hard properties. This structure prevents glass from bending easily and makes it resistant to scratching and deformation.
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Why is it so hard to push a glass under water?
The Glass is so hard to push underwater because air has less density than water, so it floats. This causes the glass to have an air bubble inside of it, thus making the glass harder and harder to push down.
What are the 5 physical properties of glass?
Transparency: Glass is transparent, allowing light to pass through it. Hardness: Glass is a hard and brittle material. Density: Glass is a dense material. Thermal expansion: Glass expands and contracts with changes in temperature. Versatility: Glass can be molded into various shapes and sizes.
Why does glass break with hot liquids?
Glass expands at different rates. This rate is called a coeficient of expansion (COE). The higher the number the more it expands as its temperature rises. Glasses with low COE's can withstand heat much better than those with high COE's. When you pour hot liquid in a glass container with a high COE (90) quickly it can expand so much, so fast that it breaks. If you do the same thing in a Pyrex container (COE 32.5) it expands less and can take the stress without breaking.
Why is a thermometer glass so thin?
Thermometer glass is thin to allow for a quicker response time to changes in temperature. Thinner glass ensures that the heat transfer from the substance being measured to the thermometer fluid is more efficient, resulting in a more accurate reading.
What kind of ball doesn't bounce?
A glass ball. Glass is a material that does not have elasticity like rubber, so when a glass ball is dropped, it will not bounce.
Why glass is hard and plastic is soft?
Glass is hard and plasitic is softer because in the glass the particles inside are so close together making it a strong solid however in a plastic the particles are still close so it is a solid but they are not as close as the ones in glass
What is so hard that it can cut glass?
Diamond can cut glass, but so also can Emeralds and Topaz, Quartz, Tungsten and hardened Steel.
Is glass hard or diamond hard?
Diamond is hardest Diamond cuts glass Glass does not cut diamond
Why are microscope slides made of glass?
they are made of glass because it is transparent and nonpermeable so no liquids can pass through it it is hard aswell so it will not break easily
What is the constituents of hard glass?
the constituents of hard glass is potassium carbonate , limestone and silica
Why is it so hard to push a glass under water?
The Glass is so hard to push underwater because air has less density than water, so it floats. This causes the glass to have an air bubble inside of it, thus making the glass harder and harder to push down.
Is a MacBook hard?
The Macbook is hard. It is made of polycarbonate glass and plastic. The screen is glass too.
A hard transparent substance that is easily broken?
Such a material is GLASS.
What are the different types of glass wares?
soft glass Hard glass crown glass flint glass glass ceramics etc
How hard is glass on the mohs scale?
Glass is about 6-6.5
What is hard glass?
it is Orthoclase
Why can a serious criminal case be heard without a petit jury?
weiner so hard cutt glass
