On 15 Oct 2006 19:02:50 -0700, "Walt" <gwjones24@[EMAIL PROTECTED]
> wrote:
>Hello Newsgroup,
>
>I have a child in independent studies and am trying to help him with
>his science studies. Its been 30+ years since I did anything in
>science and the book is greek to me. So any help with helping me to
>understand the following would be greatly appreciated.
>
"Dad",
Please, do the child a favor and get him a tutor for this subject
matter. It may be reasonable that you are not knowledgeable in this
area, but what you wrote below is not very good, not only on content,
but also on the ability to use a book. I was surprised to see your
note about the book you are using, since the main part of the message
suggests that neither you nor the child have access to a book. If he
is trying to learn, he needs to learn to read a book, and look things
up. It is scary that you are trying to teach this material.
My understanding is that it is common for people who teach their kids
at home to bring in "expertise" in specialized areas as needed.
>
>The chapter review is due on Tuesday Oct 17. Any help is appreciated.
>
>
>Here are the questions and where possible my best guess
Guessing has nothing to do with it. Certainly a teacher should not be
guessing. Everything has a reason.
>Using the equation below complete the statements below
>Na + AgCl -> NaCl +Ag
>
>
>A. This is a (single replacement/decompostion) reaction.
So what do those terms mean? When you know what they mean, you apply
that understanding to this case. Teach the child to look things up!
>B. The mass of Na +AgCl must equal the mass of AG / NaCL + Ag). I
>don't think this means division, but are the choices for the answer.
> My Answer is NaCl + Ag (law of conservation of matter, I think)
yes, good -- including reason.
>C. One of hte reactants in this equation is (na/NaCl)
What does the word reactant mean? Where are reactants in a chemical
equation -- any chemical equation?
>D. One product of this equation is (AgCl/NaCl)
> I think it is AgCl as NaCl is one of the elements within the
>equation.
>
That makes no sense -- in multiple ways.
NaCl is not an "element".
What is a product? (See previous question.)
>E. This equation is (balanced/unbalanced)
>
>
> Looks balanced to me, but not real sure. Don't know how to tell
>
>if this is correct or not.
You just contradicted yourself. If you think it looks balanced, why do
you think that? The whole point is how you tell. What is the point of
a balanced equation?
>
>
>F. The nonmetal ion is this equation is (Ag+1 /CL-1)
Look at your periodic table. Where are the metals and non-metals?
bob
>The book my son is using is Globe Physical Science by Bryan Bunch and
>Marie E. Marshall, Unit 5 review is what I am trying to assist with.
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