To indicate the hydrogen isotopes deuterium (
2
H) or tritium (
3
H), simply type D or T, and
then use the cursor to add this isotope to your structure as you would
any other atom. The isotope will appear in the structure as
2
H or
3
H.
How do you write ions in mastering chemistry?
- To indicate a POSITIVE ion: Enter the plus sign (+) after the carat (for superscript). …
- To indicate a NEGATIVE ion: Enter a minus sign (-) after the carat (for superscript). …
- For an ionic molecule or formula: The superscript indicating the charge must come at the very END of the molecular formula.
How do you add an R group on mastering chemistry?
- Right-click an atom in the drawing and click Atom properties.
- For Change to, select Query or R-group.
- Query atoms: Type the label in Atom.
- R-groups: For R, click. and then type the R number.
- Click OK.
How many hydrogen bonding can a molecule of ammonia NH3 form?
Explanation: Actually, an ammonia molecule can form
two hydrogen bonds
, not one. An important difference in terms of hydrogen bonding between ammonia, NH3 , and water, H2O , lies in the ratio between how many partial positive hydrogen atoms and how many lone pairs of electrons each have.
Does pf5 obey octet rule?
PF
5
does not follow the octet rule
since P has more than 8 electrons around it, it has 10 electrons. P is one of those elements that can have an expanded octet.
How do you type H+?
To indicate a POSITIVE ion:
Enter the plus sign (+) after the caret
(for superscript). For example, to represent a hydrogen atom missing its electron (H+), type H^+.
What does check your signs mean on mastering chemistry?
For security reasons, your Mastering session times out after a period of inactivity. When this happens, sign in again to start a new session. Check your signs (answer feedback) Your submitted answer
is close to being correct
, but you need to fix something.
Is ch3 a methyl?
A methyl group is an alkyl derived from
methane
, containing one carbon atom bonded to three hydrogen atoms — CH
3
. In formulas, the group is often abbreviated Me. … It is a very stable group in most molecules.
How do you draw a ChemDoodle?
- Click the down arrow next to the element button.
- Select an element. Choose from the displayed options, or click. to choose from the periodic table.
- Click an element in ChemDoodle Sketcher to set it to the selected element.
Is Marvin free?
*free:
Marvin is free for anyone's desktop
, for academic users and non-commercial websites. There are some limitations however: Cannot be integrated into applications or web pages without a license. Calculator Plugins and Markush enumeration in Marvin have limited functionality without a license.
What does an ethyl group look like?
In chemistry, an ethyl group is an alkyl substituent derived from ethane (C
2
H
6
). It has the formula –CH
2
CH
3
and is very often abbreviated Et.
Is NH3 hydrogen bonding or dipole dipole?
You know that, ammonia is a polar molecules. it exhibits, dipole-dipole intraction, induced attraction, and London dispersion forces. NH3 is called
dipole dipole
because nh3 make N-H bond, it directly make hydrogen bonding.
What is och3?
A methoxy group
is the functional group consisting of a methyl group bound to oxygen. This alkoxy group has the formula O–CH
3
.
What type of bonding is NH3?
Ammonia (NH
3
) has
polar covalent bond
.
What is structure of So3?
The structure of sulfur trioxide is
trigonal pyramidal
, as the double bond is formed there are no lone pair exists on the central atom sulfur. Sulfur trioxide does not have a charge and the oxygen atoms are so electronegative that sulfur surrenders its electron to them, because sulfur is weak compared to oxygen.
Is So3 obey octet rule?
So3 doesn't follow octet rule
, because it forms three double bonds with oxygen atoms, and thus,has 6+ 6(obtained from oxygen atoms)=12 electrons.
What shape would NH3 have?
The ammonia molecule has a
trigonal pyramidal shape
with the three hydrogen atoms and an unshared pair of electrons attached to the nitrogen atom.
Why is bcl3 an exception to the octet rule?
Boron trichloride. There are a number of molecules whose total number of valence electrons is an odd number.
It is not possible for all of the atoms in such a molecule
to satisfy the octet rule.
Why can sulfur Form 6?
Sulfur has one more electron pair in its 3s subshell so it can undergo excitation one more time and place the electron in another empty 3d orbital. Now sulfur has 6 unpaired electrons which means it can form 6 covalent bonds to give a total of 12 electrons around
its valence shell
.
Is o3 neutral?
Ozone with both of its opposite charges
creates a neutral molecule
and through resonance it is a stable molecule.
How do you write ch3 in Word?
- Open a new or existing Word document and click the “Insert” tab. …
- Click the “Equation” menu on the right side of the tab's ribbon.
- Click the “Insert New Equation” option. …
- Click into the “Type equation here” box and type the formula.
How do you write CO2?
For example, write the formula for carbon dioxide as CO2, not CO2 or CO2. When writing formulae for ions, write the charge as a superscript. For example, the phosphate ion should be written as PO43-. 3.
What do you mean by Gateway Timeout?
The HyperText Transfer Protocol (HTTP) 504 Gateway Timeout server error response code indicates
that the server, while acting as a gateway or proxy, did not get a response in time from the upstream server that it needed in order to complete the request
.
Why am I getting a 504 error?
What is a 504 Gateway Timeout Error? A 504 Gateway Timeout Error means
your web server didn't receive a timely response from another server upstream when it attempted to load one of your web pages
. Put simply, your web servers aren't communicating with each other fast enough.
Why can't I access my Pearson eText?
If you are using the Pearson eText | Global app and don't see any eText in the app, please use you Pearson username/password to login to the Pearson eText bookshelf;
https://etext-ise.pearson.com/bookshelf
, in a web browser to see if the title is visible there. Please contact Pearson support if you need assistance.
What ion is no3?
Nitrate
is a polyatomic ion with the chemical formula NO−3. Salts containing this ion are called nitrates. Nitrates are common components of fertilizers and explosives.
What is ch3oh in chemistry?
methanol
(CH
3
OH), also called methyl alcohol, wood alcohol, or wood spirit, the simplest of a long series of organic compounds called alcohols, consisting of a methyl group (CH
3
) linked with a hydroxy group (OH). … Pure methanol is an important material in chemical synthesis.
What is alkyl group?
Definition: An alkyl is
a functional group of an organic chemical that contains only carbon and hydrogen atoms
, which are arranged in a chain. Examples include methyl CH
3
(derived from methane) and butyl C
2
H
5
(derived from butane).
How do you type chemicals?
1) Simple method:
Type the chemical equation you want and select the letter which you want to Subscript or
Superscript. Example: For CH4, select 4 and click the “Bulb” icon, that displays above the keyboard at the right corner, and search or type “subscript or superscript”. The letter turns to subscript or superscript.
What is CH2 name?
Methylene
| CH2 – PubChem.