The <span>source of fuel that is most widely used today is Natural gas. The answer is letter C. The rest of the choices do not answer the question above,</span>
Answer:
5.28 L
Explanation:
Step 1:
Data obtained from the question.
Volume of acid (Va) = 5.12L
Molarity of acid (Ma) = 2.75M
Molarity of base (Mb) = 4M
Volume of base (Vb) =.?
Step 2:
The balanced equation for the reaction
2H3PO4 + 3Mg(OH)2 → Mg3(PO4)2 + 6H2O
From the balanced equation above,
Mole ratio of the acid (nA) = 2
Mole ratio of the base (nB) = 3
Step 3:
Determination of the volume of the base.
This is illustrated below:
MaVa/MbVb = nA/nB
2.75 x 5.12 / 4 x Vb = 2/3
Cross multiply
4 x 2 x Vb = 2.75 x 5.12 x 3
Divide both side by 4 x 2
Vb = (2.75 x 5.12 x 3)/(4 x 2)
Vb = 5.28 L
Therefore, the volume of the base is 5.28 L
Answer: Between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
Due to heat , the kinetic energy of the atoms in the substance increases due to which they start vibrating vigorously and the inter-molecular attraction decreases and the substance increases in volume. For example, on boiling water...heat energy imparted makes the volume increase and finally turn into steam or water vapour in air.(The inter-molecular space in air is more than that in water.)
start the balancing by writing down how many atoms there are per element. we’ll use this as an example:
C3H8 + O2 --> H2O + CO2
C = 3 C = 1
H = 8 H = 2
O = 2 O = 3
balance the carbon first, as it is easiest to do. add a coefficient to the single carbon atom on the right of the equation to balance it with the 3 carbon atoms on the left of the equation:
C3H8 + O2 --> H2O + (3)CO2
now there are 3 carbon atoms on each side. however, when you do this, you multiply the amount of oxygen atoms you had. therefore, now, there are 6 carbon atoms in 3CO2, plus that other oxygen atom in H2O. you now have 7 O atoms instead of 3.
C = 3 C = 3
H = 8 H = 2
O = 2 O = 7
now let’s move on to the hydrogen atoms.
C3H8 + O2 --> H2O + 3CO2
you have 8 hydrogen atoms on the left side, and 2 on the right. in order to balance them, you have to multiply the right side’s hydrogen atoms by 4. 4(2) = 8.
C3H8 + O2 --> (4)H2O + 3CO2
now both hydrogen and carbon atoms are balanced. same amount on both sides. however, your oxygen atoms have changed due to the multiplying (right side). you now have 10 of them.
C = 3 C = 3
H = 8 H = 8
O = 2 O = 10
now we balance the oxygen atoms. multiply the left side of the equation’s oxygen atoms by 5. 5(2) = 10
C3H8 + (5)O2 --> 4H2O + 3CO2
the chemical equation is all balanced. basically, just multiply with numbers until it equals the same amount on both sides.
C = 3 C = 3
H = 8 H = 8
O = 10 O = 10
