1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
borishaifa [10]
3 years ago
6

Classify matter according to its composition give examples?? plzz answer quickk!!!!!!

Chemistry
1 answer:
solong [7]3 years ago
6 0

Answer:

Explanation:

Matter can be classified into two broad categories: pure substances and mixtures. ... A substance that can be broken down into chemically simpler components (because it has more than one element) is a compound. For example, water is a compound composed of the elements hydrogen and oxygen.

You might be interested in
Please help!! 20 points!! Posted this previously and forgot to change it to 20 points but it is now
spayn [35]

Answer:

0.571 mol

Explanation:

Given data:

Number of moles of NaHCO₃ = 0.571 mol

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

NaHCO₃ + C₃H₆O₃   →     CO₂  + C₃H₅NaO₃ + H₂O

Now we will compare the moles of CO₂ with NaHCO₃ from balance chemical equation.

                             NaHCO₃          :            CO₂

                                    1                :               1

                                 0.571            :            0.571

So number of moles of CO₂  produced are 0.571.

3 0
3 years ago
Read 2 more answers
2NOCl(g) ↔ 2NO(g) + Cl2(g) with K = 1.6 x10–5. In an experiment, 1.00 mole of pure NOCl and 1.00 mole of pure Cl2 are placed in
poizon [28]

Answer: 3.8\times 10^{-3}M

Explanation:

Moles of  NOCl = 1 mole

Moles of  Cl_2 = 1 mole

Volume of solution = 1 L

Initial concentration of NOCl = 1 M

Initial concentration of Cl_2 = 1 M

The given balanced equilibrium reaction is,

                  2NOCl(g)\rightleftharpoons 2NO(g)+Cl_2(g)

Initial conc.          1 M                      0M          1 M

At eqm. conc.     (1-2x) M              (2x) M       (1+x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[NO]^2[Cl_2]}{[NOCl]^2}

The K_c= 1.6\times 10^{-5}}

Now put all the given values in this expression, we get :

{1.6\times 10^{-5}}=\frac{(2x)^2\times (1+x)}{(1-2x)^2}

By solving the term 'x', we get :

x=0.0019

Concentration of NO at equilibrium= (2x) M  =  2\times 0.0019=3.8\times 10^{-3}M

6 0
3 years ago
The number of significant figures in 0.000820 g is?
lubasha [3.4K]
There are 3 sig figs.  8 and 2 are obvious.  The ending 0 is significant because it is at the end of a decimal number, and doesn't have to be measured.
7 0
3 years ago
why is the term "ionic" used when describing compounds formed from a metal element and a nonmetal element?
nordsb [41]
Ionic compounds form when metals transfer valence electrons to nonmetals. Ionic compounds exist as crystals rather than molecules.
8 0
2 years ago
Use the half-reactions of the reaction Au(OH)3 + HI -> Au +I2 +H2O to answer the questions
kirill115 [55]
Enter an equation of a chemical reaction and click 'Balance'. The answer will appear below
Always use the upper case for the first character in the element name and the lower case for the second character. Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide
To enter an electron into a chemical equation use {-} or e
To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}.
Example: Fe{3+} + I{-} = Fe{2+} + I2
Substitute immutable groups in chemical compounds to avoid ambiguity.
For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced,
but PhC2H5 + O2 = PhOH + CO2 + H2O will
Compound states [like (s) (aq) or (g)] are not required.
If you do not know what products are enter reagents only and click 'Balance'. In many cases a complete equation will be suggested.
4 0
3 years ago
Read 2 more answers
Other questions:
  • How many grams are equivalent to 1.80x10-4 tons?
    14·1 answer
  • What did Dalton determine about the relationship between atoms, elements, and compounds?
    14·2 answers
  • What does the Periodic Table show?
    6·1 answer
  • If you add 5.0 ml of 0.5 m naoh solution to 20.0 ml each of buffer b and buffer c, which buffer’s ph would change less? ex
    6·1 answer
  • How is impure copper refined by electrolysis
    12·1 answer
  • Which is a good example of a contact force? A. protons in the nucleus of an atom B. a ball falling down after it's thrown up int
    6·1 answer
  • What is the relationship between kinetic energy and velocity ?
    13·1 answer
  • For Kw, the product of [H3O+] and [OH-] is ___________.
    8·1 answer
  • What force must act on a 150 kg mass to give it an acceleration of 30 m/s squared? F=ma
    12·1 answer
  • If you have a sample of a solid with a mass of 48.2 g and a density of 14.3 g/cm3, what would the volume be? (round you answer t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!