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What is the equation written in standard form of 2X - y - 8 equals 0?
The equation 2X - y - 8 = 0 can be rearranged into standard form as 2X - y = 8. In standard form, the variables are typically placed on the left side of the equation with the constant on the right, without any x or y terms on the same side as the constant.
If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9) then how many atoms of each element must be accounted for on the other side of the equation?
If the coefficient 2 is placed in front of tetraiodine nonaoxide (I₄O₉), the formula becomes 2 I₄O₉. This means there are 8 iodine (I) atoms and 18 oxygen (O) atoms on the left side of the equation. Therefore, the other side of the equation must also account for 8 iodine atoms and 18 oxygen atoms to balance the equation.
What is the volume of a gas is reduced from 4 L to 0.5 L while the temperature is held constant. What does the pressure of the gas do?
The gas pressure increases by a factor of 8. The relevant equation is pV = nRT. Since nothing on the right side of this equation changes, the product on the left side must remain constant. The volume is stated to decrease by a factor of 4/0.5 or 8; therefore the pressure must increase by the same factor.
Can a chemical equation have different coefficients on either side of the equation?
yes. the goal of a balanced equation is to have the same amount of atoms of an element on both sides. Ex. if the product side have a total of 8 oxygen atoms than the reactant side should have a total of 8 oxygen atoms Ex. MgSO4 + 2 H20 --> Mg(OH)2 + H2SO4 1 Mg atom on both sides 1 S atom on both sides 4 H atoms on both sides 6 O atoms on both sides
When an isotope undergoes beta decay which of the following does NOT change?
During beta decay, the number of protons in the nucleus changes as a neutron is converted into a proton and an electron. However, the mass number (total number of protons and neutrons) of the isotope remains the same.
