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
Oliga [24]
2 years ago
5

Need help with this please thanks

Chemistry
1 answer:
kolbaska11 [484]2 years ago
5 0

Answer: 1. 2H_2+O_2\rightarrow 2H_2O

2. P_4+3O_2\rightarrow 2P_2O_3

3. N_2+3H_2\rightarrow 2NH_3

4. 2K+Cl_2\rightarrow 2KCl

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The given equations are balanced as:

1. 2H_2+O_2\rightarrow 2H_2O

2. P_4+3O_2\rightarrow 2P_2O_3

3. N_2+3H_2\rightarrow 2NH_3

4. 2K+Cl_2\rightarrow 2KCl

You might be interested in
What is the mass of 3.62X10^24 molecules of methanol
Bad White [126]
N(CH₃OH)=3,62·10²⁴/6·10²³ 1/mol = 6,033 mol
m(CH₃OH) = 6,033 mol · 32 g/mol (molar mass) = 193,06 g.
7 0
3 years ago
Read 2 more answers
How might proper lab techniques impact a scientist work?
lana [24]
Because if the the technique is wrong the scientist is wrong I’m sorry it’s a bad answer :(
7 0
3 years ago
Coal _____.
butalik [34]
Produces almost half of out nation's electricity
6 0
3 years ago
Read 2 more answers
how many electrons is Fluorine likely to receive from the atom of another element during the formation of a bond.
S_A_V [24]

Answer: Fluorine contains seven valence electrons. It needs one more electron to complete its octet. The oxidation number is 1- and indicates fluorine will gain or share one electron when it combines with another atom to become a more stable compound.

Explanation: Fluorine contains seven valence electrons. It needs one more electron to complete its octet. The oxidation number is 1- and indicates fluorine will gain or share one electron when it combines with another atom to become a more stable compound.

8 0
2 years ago
A farmer plants corn in nutrient rich soil. The corn plants absorb nutrients from the soil in order to grow and perform life pro
ratelena [41]

Answer:

It will make the soil dry out and lose nutrance, the soil will be unusable in later years. plz give me brainleist

8 0
3 years ago
Other questions:
  • Which of the following techniques is most appropriate for the recovery of solid KNO3 from an aqueous solution of KNO3?
    10·1 answer
  • Imagine a planet that has a similar atmospheric pressure to Earth (760 mmHg) but different concentrations of gases in its atmosp
    9·1 answer
  • Potassium-40 (40k) is a radioactive isotope of potassium (atomic number 19). how many neutrons are located in the nucleus of pot
    12·1 answer
  • A mixture of copper and tin would be called _________.
    8·1 answer
  • If you wanted to measure in irregular object's volume, which device would you use?
    12·1 answer
  • Consider the reaction C2H4(g) + H2O(g) --> CH3CH2OH(g)
    6·1 answer
  • What happens to a substance when it dissolves​
    10·1 answer
  • 1. In regards to curly hair, which of the following statements
    6·1 answer
  • 0.500 L of a gas is collected at 2911 MM and 0°C. What will the volume be at STP?
    9·1 answer
  • Balancing Equations help (please explain)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!