sarah science

posted by .

why have he brackets around the (OH)2

and not just OH2

it ask to lsit each element and the number of atoms present.

  • sarah science -

    If it was just OH2 then it would be a differnt element, water actually. The brackets are there to indicate that it is together, and to show you there is 2 of each, the 2 just at the end as you put it would indicate only 1 oxygen atom and 2 hydrogen atoms. Because it is a compound it is placed together in brackets.

  • sarah science -

    See my response to Sarah's original question.

  • sarah science -

    I should have said to look at Sam's original post and my response.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    How do you find out the number of atoms in a chemical formula?
  2. science

    The question list each element and the numebr of atoms Mg(OH)2 Mg = magnesium What does OH with brackets aorund it mean and then the small 2
  3. science

    one example has Cl2 ( that is an L) the other has (OH)2 I still do not understand the difference if it has brackets or does not have brackets around it
  4. Chemistry

    I have realized I don't understand Avagado's number at all My book shows me this diagram instead of just providing a simple formulas that makes no sense at all here is what I have made sense of so far (6.022 x 10^23 atoms/mol)(mass …
  5. chem

    when a chemical reaction takes place, the number of atoms of each element in the reactants (blank) the number of atoms of each element in the products
  6. chemistry

    Isotopes (select one or more): are chemicals that react only with protons. for an element have the same chemical properties. are atoms of an element that differ in the number of protons. are atoms of an element that differ in the number …
  7. Chemistry

    An element has a body centred cubic structure with edge cell of 288 pm .The density of the element is 7.2 g/cm3.How many atoms are present in 208g of the element.
  8. chemistry

    How do I calculate the number of atoms in a compound (not an element)?
  9. science

    radioactive decay occurs when atoms a) lose mass b) join with atoms of another element c) break down to form atoms of another element d) are exposes to chemical weather
  10. PNU

    An element has a body-centered cubic(bcc) structure with a cell edge of 288pm the density of the element is 7.2g/cm3. How many atoms are present in 208g of element

More Similar Questions