Question

Коэффициенттерді қойып, реакциядағы барлық коэффициент қосындысын есепте. 1) Na2SO4 + CaCl2 = CaSo4 + NaCl Коэффициенттер қосындысы: 2) C2H6 + O2 = CO2 + H2O Коэффициенттер қосындысы:

Answer 1

Ответ:

воттттттт :）Лайк баса салындарш киын болмаса

Answer 2

Balancing Chemical Equations

To balance chemical equations, you need to ensure that the number of atoms of each element is the same on both sides of the equation. This is done by adjusting the coefficients in front of each compound or element.

Let's balance the given equations:

1) Na2SO4 + CaCl2 = CaSO4 + NaCl

To balance this equation, we start by counting the number of atoms for each element on both sides of the equation:

Sodium (Na): 2 on the left, 1 on the right Sulfur (S): 1 on the left, 1 on the right Oxygen (O): 4 on the left, 4 on the right Calcium (Ca): 0 on the left, 1 on the right Chlorine (Cl): 2 on the left, 2 on the right

To balance the equation, we can start by balancing the elements that appear in only one compound. In this case, we can balance calcium (Ca) by putting a coefficient of 1 in front of CaSO4:

Na2SO4 + CaCl2 = 1CaSO4 + NaCl

Now, let's balance sodium (Na) by putting a coefficient of 2 in front of NaCl:

Na2SO4 + CaCl2 = 1CaSO4 + 2NaCl

Finally, let's balance chlorine (Cl) by putting a coefficient of 2 in front of CaCl2:

Na2SO4 + 2CaCl2 = 1CaSO4 + 2NaCl

Therefore, the balanced equation is:

Na2SO4 + 2CaCl2 = CaSO4 + 2NaCl [[1]]

2) C2H6 + O2 = CO2 + H2O

To balance this equation, we start by counting the number of atoms for each element on both sides of the equation:

Carbon (C): 2 on the left, 1 on the right Hydrogen (H): 6 on the left, 2 on the right Oxygen (O): 2 on the left, 3 on the right

To balance the equation, we can start by balancing carbon (C) by putting a coefficient of 2 in front of CO2:

C2H6 + O2 = 2CO2 + H2O

Now, let's balance hydrogen (H) by putting a coefficient of 3 in front of H2O:

C2H6 + O2 = 2CO2 + 3H2O

Finally, let's balance oxygen (O) by putting a coefficient of 7/2 (or 3.5) in front of O2:

C2H6 + 3.5O2 = 2CO2 + 3H2O

Since we cannot have fractional coefficients in a balanced equation, we can multiply the entire equation by 2 to eliminate the decimal:

2C2H6 + 7O2 = 4CO2 + 6H2O

Therefore, the balanced equation is:

2C2H6 + 7O2 = 4CO2 + 6H2O [[2]]

Please note that the coefficients in front of the compounds represent the number of molecules or moles, not the number of atoms.