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
il63 [147K]
3 years ago
15

The outline of a partial periodic table is shown.

Chemistry
2 answers:
Irina-Kira [14]3 years ago
7 0
I think is section 3
vova2212 [387]3 years ago
4 0

Answer:

I think section #3

Explanation:

When i was in science class in my memory it was always in that area

You might be interested in
In the compound cah2 calcium has an oxidation number of 2+ and hydrogen has an oxidation number of
sesenic [268]

The oxidation number of H is -1.

Sum of the oxidation numbers in each element = charge of the complex

CaH₂ has 1 Ca atom and 2H atoms. The charge of the complex is zero. Let’s say Oxidation number of H is "a".

Then,

<span>    (+2) + 2 x a = 0 </span>

<span>        +2  + 2a  = 0</span>

                  2a = -2

                    a = -1

Hence, the oxidation number of Hydrogen atom in CaH₂ is -1


7 0
3 years ago
What does the number next to ions signify?
dusya [7]
<span>The number next to the simbol of the element ions (as a superscript) means the number of charges of the ion. For example N (+),, where (+) is a superscript means that the charge of the ion is 1+. S(2-), where (2-) is a superscript, means that the charge of the ion is (2-). OH (-), where (-) is a superscript, means that the charge of OH ion is (1-) . </span>
6 0
3 years ago
The process of cell division that creates sex cells in sexually reproducing organisms is called
Mashcka [7]
The answer is meiosis. Not Mitosis


7 0
3 years ago
Read 2 more answers
Humans are not the only animals that pollute the air.
pychu [463]

Answer:

TRUE

Explanation:

Humans and many animals are responsible for air pollution. Even natural processess such as excreting feces results in release of methane, CO2 etc which contribute to air pollution

7 0
3 years ago
Read 2 more answers
Somebody help me please! How many electrons does sodium gain or lose?<br> 24 points!
melamori03 [73]

Answer: A sodium atom has one electron in its outer shell. The atom is more stable if it has a full outer shell. A sodium atom can lose its outer electron. It will still have 11 positive protons but only 10 negative electrons.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of hydrogen are in 5.2 moles of c7h18
    8·2 answers
  • What is the mass of 9 atom(s) of copper in grams?
    5·1 answer
  • Looking at Group 2A of the periodic table, which of these element probably has the lowest ionic radius? a) beryllium b) magnesiu
    12·1 answer
  • Which of these chemical formulas represents both an element and a molecule?
    12·2 answers
  • Match the terms with their correct definition:
    7·1 answer
  • If carbon can count the shared hydrogen
    7·1 answer
  • Pb + Fe(SO4) =Pb(SO4) + Fe what type of reaction is this ?
    9·1 answer
  • Plz answer fast Name the four parts of a circuit.
    8·2 answers
  • How many grams of Fe are needed to create 32.5mol Fe3O4?
    9·1 answer
  • How do I convert the ones circled in red? Please explain how you did it don’t just do it for me.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!