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
Leona [35]
3 years ago
10

Does anyone know this

Chemistry
1 answer:
Natali5045456 [20]3 years ago
5 0

Answer:

Mg -atomic number 12

electronic configuration -1s² 2s² 2p^6 3s²

You might be interested in
Explain what is respiration in your own words..
nadezda [96]

Answer:

Plants using glucose to make ATP molecules during the process of photosynthesis which results in the plant releasing oxygen.

This is cellular respiration. ↑

8 0
3 years ago
In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO(l)→C3N3(NH2)3(l)+CO2(g) Bal
kykrilka [37]

Answer:

The coefficients are 6, 1, 3

Explanation:

HNCO →C3N3(NH2)3 + CO2

From the above equation, there are a total of 6 atoms of nitrogen on the right side and 1atom on the left. It can be balance by putting 6 in front of HNCO as shown below:

6HNCO → C3N3(NH2)3 + CO2

Now there are 6 atoms of carbon on the left side and 4 atoms on the right side. It can be balance by putting 3 in front of CO2 as shown below:

6HNCO → C3N3(NH2)3 + 3CO2

Now the equation is balanced as the numbers of atoms of the different elements on both sides of the equation are the same.

The coefficients are 6, 1, 3

8 0
3 years ago
Was john dalton a good scientist? why?
Zina [86]

he is a good scientist because he postulated that chemical reactions resulted in the rearrangement of the reacting atoms

3 0
3 years ago
What is used to determine the number of each atom in an ionic formula
ladessa [460]

Answer:

The charge carried by each ion (oxidation state of each atom)

Explanation:

If we have an ionic compound and we want to write its formula, we must first know the magnitude of charge on each ion (shown as oxidation state of the atoms involved) because the magnitude of charge on each ion is eventually crisscrossed and gives the subscript (number of atoms) for each atom in the formula.

For instance, let us write the formula of calcium bromide. Ca has a charge of +2 while Br has a charge of -1. If we exchange the charges and ignore the signs such that the crisscrossed charges form subscripts we can now write; CaBr_{2}.

3 0
3 years ago
The combustion reaction of propane is described by the reaction. c3h8 5o2 → 4h2o 3co2. how many moles of o2 are required to gene
dmitriy555 [2]
C₃H₈   +   5 O₂   →   4 H₂O   +   3 CO₂

mole ratio based on balance equation of  O₂   :   CO₂ i  s    5  :  3
                      C₃H₈   +   5 O₂   →   4 H₂O   +   3 CO₂

∴ if moles of CO₂  =  3 moles
  
then moles of O₂  = (3 moles ÷ 3) × 5
                             
                             =  <span>5 moles   </span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Use the words protons neutrons and I suppose in the same sentence ​
    5·1 answer
  • How to make a lightsaver
    12·1 answer
  • What is the mass of 3.6 x 1024 atoms of Zinc (Zn)?
    5·1 answer
  • Which of these choices is the correct net ionic equation for the reaction that occurs when solutions of pb(no3)2 and nh4cl are m
    6·1 answer
  • Mitochondria _ <br>Plant​
    11·2 answers
  • Does his model correctly show why the properties of the ending substances are different from the properties of the starting subs
    7·1 answer
  • Chemistry, need answer ASAP!! 50 points and i'll mark brainliest if correct! ^w^
    10·1 answer
  • How should this combustion reaction be balanced?
    10·1 answer
  • A peak elutes from an HPLC column 17.7 cm in length in 11.1 min. What would be the width at half‑height of the peak (in seconds)
    14·1 answer
  • Can someone please help me please?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!