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You have to write the symbol for the isotope in question, as follows: (superscripted mass number) Atomic symbol (subscripted atomic number) Don't write the brackets, I just put them in to clarify it. The atomic number and the symbol can be found with the aid of a periodic table. The mass...

Baking soda is actually sodium bicarbonate. To quantitatively capture the CO2, pass the gas evolved through sodium hydroxide and measure the mass difference after the reaction is complete. To qualitatively determine CO2, pass it through lime water (aqueous calcium hydroxide), which goes milky...

Baking soda is actually sodium bicarbonate. To quantitatively capture the CO2, pass the gas evolved through sodium hydroxide and measure the mass difference after the reaction is complete. To qualitatively determine CO2, pass it through lime water (aqueous calcium hydroxide), which goes milky...

It is not so much the animals that will suffer from direct exposure; it is the plants. When fertilisers containing phosphate (and to a lesser extent nitrate) run off into rivers, the water plants and algae use them to start growing explosively fast. At night, when photosynthesis does not occur...

I think they are called abiotic.

The genitals of the person are surgically altered to look like a penis and scrotum. In transgendered men, however, the urethra has to be lengthened to pass through the new penis, and this is a very complicated procedure. The organ can be a graft from another body part, such as a section of an...

No, because the Moon always presents the same face to Earth. There may be a slight movement, due to libration, but it will never be much.

The closest approach between Mars and Earth still means that there is about 55 million km between them.

X is 2-bromobutane, and Y is 1-bromobutane. X is formed from a secondary carbon, whereas Y needs a primary carbon to form. Since the formation of secondary carbons is preferable, X will be formed in a higher ratio, but I don't know the exact ratio. C2H5-CH(Br)-CH3 Draw two tetrahedral...

Depends on the environment you are talking about. If you are talking about an environment in a test lab, or in an operating room, it should be germ free to prevent infection or contamination. If you are talking about the environment in general, then freedom from germs would quickly cause the...