This magnesium ion will have a charge of +2. This is because it retained the same number of protons and neutrons, but the loss of 2 electrons (with negative charge) means that there are now 2 extra protons compared to electrons, and those 2 protons give a net charge of +2.
Answer:
identify the atoms on each side.
Count the atoms on each side.
Use coefficients to increase the atoms on each side.
Check to make sure you have the same number of each type of atom on each side.
Explanation:
The concept behind balancing chemical equations is to ensure that they comply with the law of conservation of matter. This helps to make chemical equations quantitatively meaningful.
- First, identify the atoms on each side of the expression.
- Then count these atoms.
- Assign appropriate numeric coefficient to the species.
- Then check to make sure there are equal number of each type of atoms on each side.
The subscript of the formula must not be changed in an attempt to balance a chemical equation.
Density = mass/volume
If you have the density and volume of a substance, you can use this relationship to calculate the mass. Here, you have 149 milliliters of ethanol, and there are 0.789 grams of ethanol in every milliliter of ethanol. So the mass of 149 mL of ethanol can be obtained by multiplying: (0.789 g/mL)(149 mL) = 118 grams of ethanol.
Answer:
The state of matter of rain is liquid. Clouds are 2 states of matter, liquid and gas
Explanation:
