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an isostere is1 no-2 and o32 no-2 and po3-4 3 co2 n2o no-3
how soap acts towards fatprepare another jar with warm water and oil just as you did in the experiment above this time add about half a cup of either
how water acts towards fathalf-fill a tall glass jar with warm water add some olive oil or other oil to a depth of about 1 cm shake this mixture hard
be2 is isoelectronic with1 mg2 2 na
how soap helps water in cleaningprepare two greasy cloths by smearing kitchen fat or vaseline on cloths wash one sample in warm water without soap
larry spends 34 hour twice a day walking and playing with his dog he also spends 16 hour twice a day feeding his dog how much time does larry spend
number of protons neutrons and electrons in the element 23189 y is1 89 231 89 2 89 89 242 3 89 142 89 4
the number of electrons and neutrons of an element is 18 and 20 respectively its mass number is1 17 2
softening water with chemicals try making suds with a half test tube of hard water and a few drops of soap solution next boil a same sample and again
softening hard water by boiling temporary hardness can be removed from water by boiling shake a little temporary hard water with a few drops of soap
the number of electrons in 4019 k -1 is1 19 2 20 318 440ans
the difference between hard and soft water collect some hard water from a streamor make some as defined in the next experiment also secure some soft
define the mechanism of hormone actionhormones affect cell function either by activating cyclic amp adenosine monophosphate mechanism or by
how to make a simple apparatus for distilling wateryou can make a easy water-distilling apparatus from a flask and a length of glass or rubber tubing
which one of the following is not isoelectronic with o2-1 n-3 2
sterilizing water by boilingthe presence of tiny living plants and animals makes water inappropriate for drinking such forms of life can only be seen
how to make an experimental biterfit a one-hole stopper carrying a short length of glass tube into the small end of a lamp chimney put a little
define protein hormone and steroid hormonefurther hormones are of two different chemical types - protein hormone and steroid hormone most of the
nuclei tend to have more neutrons than protons at high mass numbers because1 neutrons are neutral particles 2 neutrons have more mass than
last year jonathan was 6034 inches tall this year he is 6514 inches tall how many inches did he growsubtract to find outthe difference in heights
define general hormonesgeneral hormones on the other hand are emptied into the blood by specific endocrine glands and then flow throughout the entire
explain the local hormoneslocal hormones affect cells in the vicinity of the organ secreting the hormone what we call as paracrine influence examples
what is a hormonea hormone as you may already know can be described as a chemical substance which having been formed in one particular organ or a
in neutral atom which particles are equivalent1 p e
how to make a filtera plant pot with a plug of cotton wool in the bottom and a layer of sand a few inches deep makes a satisfactory filter for many