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
uranmaximum [27]
3 years ago
13

When writing equations the mass on the left of the arrow must

Chemistry
1 answer:
sp2606 [1]3 years ago
6 0

Answer:

When writing equation the mass on left side of equation must be equal to the mass on right side. True

Explanation:

The chemical reactions always follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In photosynthesis reaction:

6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass because total mass is equal on both side of equation.

You might be interested in
. How many grams of NaOH would you need to make 450 mL of a 0.250 M NaOH solution
Stella [2.4K]
You have molarity and you have volume. Use the formula :
Molarity(M)= Moles(N)/Liter(L)            to get the solution. 
450 ml= .450 L
.250 = N/.450
N=.1125 moles of NaOH.
 And since you know the moles, use the molar mass to figure out the grams.
<span> (40g/mol NaOH) x (.1125 mol) =  
4.5g of NaOH.
</span>
Hope it helps. Good luck on chemistry.
7 0
4 years ago
Which structural feature of carbon dioxide contributes to its low melting point?
antoniya [11.8K]
 <span>Because it has very weak intermolecular meaning it takes little energy to break them and turn it into a gas</span>
8 0
3 years ago
When the fuel mixture contained in a 1.49 l tank, stored at 750 mmhg and 298 k, undergoes complete combustion, how much heat is
Ket [755]
Get to know first how many moles in the gas:n = pV/RT= (1.013*10^5*750/760) Pa *1.49*10^-3 m^3/(8.314 J/(molK)*298) n = 0.0601 moles. 
The combustion energies  are  889 kJ/mol (methane) and 2 220 kJ (propane) x = moles methane, y = moles propane 
x*889 + y*2220 = 778 x + y = 0.0601----------- x = 0.267784 moles = 0.267784*100/0.0601 = 44.6 % y = 0.243216 moles = 0.243216*100/0.0601 = 55.4 %
4 0
3 years ago
What are some strong, weak, and non electrolytes?
GrogVix [38]
Strong acids, strong bases, and salts are strong electrolyte.
3 0
3 years ago
Read 2 more answers
Is mercury a solution​
Dvinal [7]

Answer:

No.

Explanation:

Mercury is not a solution​. It is a detonator.

4 0
3 years ago
Other questions:
  • An ideal gas is stored in a container at constant volume. If the temperature (T) were increased to 3T, what would be the change
    11·2 answers
  • Which statement about enzymes is true?
    8·1 answer
  • Suppose you have a mole of uranium (U) and three moles of hydrogen (H). Do you have
    15·1 answer
  • When a solvent can dissolve no more of a solid solute at a specific temperature, we say the solution is
    12·1 answer
  • Which particle j j Thomson discovered
    14·2 answers
  • Why did Chief John Ross decided to sign a treaty with Albert Pike? A. The victory at Wilson’s Creek convinced Ross the Confedera
    11·2 answers
  • Thermal energy is transferred from?
    13·2 answers
  • Why do vehicle engines produce nitrogen oxides<br>​
    8·2 answers
  • An empty beaker has a measured mass of 27.234 g. When some salt is added to the beaker, the combined mass is 35.9564 g. Calculat
    10·1 answer
  • The solubility KI is 50 g in 100 g of H2O at 20 °C. if 110 grams of ki are added to 200 grams of H2O ________
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!