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

  1. 👍
  2. 👎
  3. 👁
  1. What's to understand. If brackets (you used parentheses which is the usual way to do it) or parentheses, it means to multiply everything inside the parenthese by the number in the subscript. So.
    Mg(OH)2 has 1 Mg atom, 2 O atoms and 2 H atoms.
    MgO has 1 Mg atom and 1 O atom.
    Al(OH)3 has 1 Al atom, 3 O atoms, and 3 H atoms.
    (CN)2 has 2 C atoms and 2 N atoms in the compound cyanogen.
    (NH4)2CO3 has 2 N atoms, 8 H atoms, 1 C atom and 3 O atoms in the compound ammonium carbonate.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Cl2 reacts with the element Sr to form an ionic compound. Based on periodic properties, identify a molecule, X2, that is likely to to react with Sr in a way similar to how Cl2 reacts with Sr. Justify your choice. *****I think it

  2. chemistry

    The reaction CHCL3(g)+CL2(g)_CCL4(g)+HCL(g) has the following rate law:Rate =k [CHCL3][CL2].If the concentration of CHCL3 is increased by a factor of five while the concentration of CL2 Is kept the same use a mathematical equation

  3. Chemistry - Rate Determining Step

    The rate law for the reaction 2NO (g) + Cl2 (g) -> 2NOCl (g) is given by rate = k[NO][Cl2] A mechanism involving the following steps has been proposed for the reaction: NO (g) + Cl2 (g) -> NOCl2 (g) NOCl2 (g) + NO (g) -> 2NOCl (g)

  4. Chemistry

    For the reaction shown, compute the theoretical yield of product (in grams) for each of the following initial amounts of reactants. 2Al(s) +3 Cl2(g) ---> 2 AlCl3(s) A. 2.5gAl , 2.5g Cl2 B. 7.7 g Al , 25.2 g Cl2 C. 0.240 g Al ,

  1. chemestry

    What is occurring in the following reaction? H2 + Cl2 → 2HCl A. H2 is being reduced. B. Cl2 is being oxidized. C. H2 is gaining two electrons. D. Cl2 is acting as an oxidizing agent. is the answer C? please explain

  2. Chem 400

    Direct reaction of solid iodine (I2) and gaseous chlorine (Cl2) produces an iodine chloride,(IxCly), a bright yellow solid. 0.678 g of iodine (I2) is mixed with 0.851 g of chlorine (Cl2). After the elements react, some chlorine is

  3. Chemistry

    In the presence of an alkali, Cl2 reacts to form Cl- and ClO3- , as follows: 3 Cl2(g) + 6 OH−(aq) → 5 Cl−(aq) + ClO3−(aq) + 3 H2O(l) a. Calculate the oxidation number for chlorine in each of the species. b. Write a half

  4. chemistry

    What is the maximum mass of TiCl4 that can be obtained from 79.0 g TiO2, 37.9 g Cl2 and excess carbon? Please show all your steps. 3 TiO2(s) + 6 Cl2 + 4 C(s) --> 3 TiCl4(g) + 2 CO2(g) + 2 CO(g) Molar Masses:TiO2-79.88, Cl2-70.90,

  1. Chemistry

    At 35 degrees Celcius, K = 1.6x10^-5 for the reaction: 2NOCl 2NO + Cl2 If 2.0mol NOCl and 1.0mol Cl2 are placed into a 1.0-L flask, calculate the equilibrium concentrations of all species. Answer: [NOCl] = 2.0M [NO] = 8.0x10^-3

  2. Science

    Hydrogen gas(H2) and chlorine gas (CL2) react to form hydrocloric acid (HCL). What is the correct balanced chemical equation for this reaction? A-2H2+2CL2->HCL B-H2+CL2->2HCL C-2H2+CL2->2HCL D-H2+CL2->HCL I think C Pls Help me

  3. chemistry

    Write the half reaction and balanced equation for: Cl2(g) + H2(g) -> HCl(aq) so I got: 2e- + Cl2(g) -> 2Cl- H2(g) -> 2H+ + 2e- so Hydrogen is oxidized and Chlorine is reduced so for cell notation I put:

  4. Chemistry

    H2 (g) +Cl2 (g) -> 2HCl (g) how many molecules of HCl are produced from 100 g Cl2 ?

You can view more similar questions or ask a new question.