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In fractional distillation, the substances in a mixture are heated to their boiling points. Different substances have different boiling points, so will be separated at different times. The answer to your question is simply because they have different boiling points.
Serpentine is itself a category of Minerals. Minerals are not Rocks in that Minerals are homogenous (one substance) whereas Rocks are heterogenous (many substances). All Rocks contain Minerals in a fixed proportion. Serpentinite is a Metamorphic Rock made of Serpentine-Group Minerals pressed together at the bottom of the sea-floor and heated by magma. In order to be an Igneous Rock, a Rock has to itself be a form of crystallized magma, not merely heated by magma.
Many gems are heated in order to improve their color or clarity.
homogeneous
amorphous
Microwave ovens primarily heat water (they can heat metal as well, although that is not their purpose), therefore food must contain some moisture in order to be heated in a microwave oven. Dried food will not heat well.
In fractional distillation, the substances in a mixture are heated to their boiling points. Different substances have different boiling points, so will be separated at different times. The answer to your question is simply because they have different boiling points.
Serpentine is itself a category of Minerals. Minerals are not Rocks in that Minerals are homogenous (one substance) whereas Rocks are heterogenous (many substances). All Rocks contain Minerals in a fixed proportion. Serpentinite is a Metamorphic Rock made of Serpentine-Group Minerals pressed together at the bottom of the sea-floor and heated by magma. In order to be an Igneous Rock, a Rock has to itself be a form of crystallized magma, not merely heated by magma.
Serpentine is itself a category of Minerals. Minerals are not Rocks in that Minerals are homogenous (one substance) whereas Rocks are heterogenous (many substances). All Rocks contain Minerals in a fixed proportion. Serpentinite is a Metamorphic Rock made of Serpentine-Group Minerals pressed together at the bottom of the sea-floor and heated by magma. In order to be an Igneous Rock, a Rock has to itself be a form of crystallized magma, not merely heated by magma.
Many gems are heated in order to improve their color or clarity.
Many organic molecules contain hydrogen atoms and are not considered acids. Specifically, when carbon is bonded to hydrogen, this is considered an organic bond. There are organic acids as well though. In order for a substance to be acidic, it needs to have ionic hydrogen present (i.e. H+).
Baby food doesn't take long to heat up because it's such a small amount. In the microwave only about a minute or less (of course each microwave is different). But whether in the microwave or on the stove top, just heat it enough to be warm. You don't want it to be hot. Drop a bit of it on the inside of your wrist to check to see if it's too hot. If you're not sure, go ahead and try to serve it cold. Better safe than sorry.
The order these items were invented is this: bifocals - 1760 sewing machine - 1830 Light bulb - 1879 Air conditioning - 1902 microwave oven - 1945
Gravity is not required in order to generate microwave radiation, but it sure helps keep the meatloaf down on the turntable while it's warming.
substances made by non-commutative reactions, where the ractants have to be put in a certain order.
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A1: No plants contain chlorophyll in order to make food. Not all plants contain chlorophyll. Plants which contain chlorophyll, contain it in order to breathe. A2: plants do use it to breathe but plants also use it to help them make food.