0
What else can I help you with?
What salt is used in antifreeze to melt ice?
The type of salt commonly used in antifreeze to melt ice is calcium chloride. It has a lower freezing point than water, making it effective in preventing the formation of ice in freezing temperatures.
Why does dry ice last longer when salt is sprinkled on it?
Sprinkling salt on dry ice can help it last longer by lowering the temperature at which the dry ice sublimates. The salt lowers the freezing point of the surrounding moisture on the dry ice, creating a icy slush layer that insulates the dry ice and slows down the sublimation process.
How does the temperature of water affect the sublimation of dry ice?
cold water makes dry ice closer to its freezing point. so hot water makes dry ice sublimate more
What effect does antifreeze have on the melting point of ice?
Antifreeze lowers the melting point of ice by disrupting the hydrogen bonds between water molecules, preventing them from forming a solid lattice structure. This interference causes the ice to melt at a lower temperature than usual.
What animal has natural antifreeze in its body so it wont die when it freezes?
The wood frog is able to survive freezing temperatures due to its ability to produce natural antifreeze in its body. This antifreeze helps protect its cells and tissues from damage caused by ice crystals forming.
Which facts about the use of antifreeze illustrates a rule that governs the physical world?
Antifreeze keeps water from freezing when it is cold out. The antifreeze liquid lowers the freezing point of the water. Even when freezing (to a slurry) it does not form solid ice that can rupture the radiator. The antifreeze combines the water to form a liquid with a lower freezing point than water alone.
What salt is used in antifreeze to melt ice?
The type of salt commonly used in antifreeze to melt ice is calcium chloride. It has a lower freezing point than water, making it effective in preventing the formation of ice in freezing temperatures.
Why does dry ice last longer when salt is sprinkled on it?
Sprinkling salt on dry ice can help it last longer by lowering the temperature at which the dry ice sublimates. The salt lowers the freezing point of the surrounding moisture on the dry ice, creating a icy slush layer that insulates the dry ice and slows down the sublimation process.
How does the temperature of water affect the sublimation of dry ice?
cold water makes dry ice closer to its freezing point. so hot water makes dry ice sublimate more
What happen if you heat dry ice to 50C?
Frozen carbon dioxide (dry ice) will turn back to a gas when heated at any temperature above freezing.
How can additives be used to prevent water from freezing?
Additives can prevent water from freezing by lowering the freezing point of the water. This means that the water will need to reach a lower temperature before it turns into ice. Common additives include salt, antifreeze, and alcohol, which disrupt the formation of ice crystals in the water.
What effect does antifreeze have on the melting point of ice?
Antifreeze lowers the melting point of ice by disrupting the hydrogen bonds between water molecules, preventing them from forming a solid lattice structure. This interference causes the ice to melt at a lower temperature than usual.
What is the symbol for dry ice?
The symbol for dry ice is CO2, which represents the chemical compound carbon dioxide in its solid state. Dry ice is commonly used for cooling and freezing applications due to its sublimation properties.
Is freezing carbon dioxide to make dry ice a chemical change?
No, it's a physical change.
Does cyclohexane freeze in dry ice?
Cyclohexane's melting point is about +6 degrees Celsius. Dry ice (solid carbon dioxide) maintains a temperature of -78C in normal conditions. Cyclohexane will thus freeze on dry ice. In fact, a closed container of cyclohexane would freeze on regular, water ice. Regular hexane (linear) has a freezing point around -100C, and will remain a liquid on dry ice, much as ethanol or acetone do.
What is dry ice made from and what is the difference between dry ice and regular ice cubes?
Dry ice frozen carbon dioxide (CO2), it is created when CO2 is released in a high-pressure container that results to the cooling of liquid to freezing point. Dry ice sublimates directly from solid gas and has the temperature of -109.3°F or -78.5°C. Both dry ice and ice have cold temperatures and are commonly used for freezing and cooling. Ice forms at 32°F while dry ice forms at minus 109.3°F. Water ice is created when water is exposed to very low temperatures while dry ice is frozen carbon dioxide. Their main difference however lies in the fact that regular water ice melts into liquid while dry ice sublimates directly from solid to gas.
Is it possible to start a fire with ice?
Yes, it is possible to fashion ice into a lens that is capable of sparking a fire from sunlight in dry tinder.
