I would say 2 because co2 goes out and o goes in
The atomic number represents or stand for the distinction identity of a chemical element. It is usually defined as the number of protons present number in an atom of an element, which is also equal to the number of electrons
Two objects having the same internal energy may have different temperatures if their masses and specific heats are different and it's possible that an object with more eternal energy may be at a lower temperature than the one with less internal energy.
Slope is rise over run so pick two consecutive points and subtract your initial y value from your subsequent y value divided by the difference between the corresponding x values
(Y2-Y1)/(X2-X1)
Answer:
Two reactants produce two products
Explanation:
In single replacement reaction, an ionic specie is replaced by another specie according to the following general scheme
Z + XY → ZY + X
Here Z can be a metal or a non-metal. So, this removes the first given option. Also, It can be seen from the general reaction that the product is not single deducting the second option. The last option states that, "any metal replaced any other metal", this is not necessarily true. For the replacement of metal the other metal should be more reactive.
So, the only true statement about single-replacement reaction is, "two reactants produce two products"