Yes you can; as a parent, you do what you feel is best for your child.
Mixing two different kinds of powdered baby formula is generally not recommended unless specifically advised by a pediatrician. Different formulas are designed to meet specific nutritional needs and may have varying concentrations of vitamins and minerals. Mixing them could lead to an imbalance or over- or under-supplementation. Always consult with a healthcare professional before making changes to an infant's diet.
solution or mixture
Whip with a fork in a bowl.
Yes
When Thuy correctly mixes the baby formula by adding two scoops of powdered formula to one liter of water and stirring well, she will have a properly prepared bottle of baby formula. It's as simple as following her mother's instructions to avoid any feeding mishaps. So, Thuy better get that formula mixed right, or she'll have a hangry baby on her hands.
powdered drink mix is a mixture. ☺ :D
"solution" or "mixture"
saturated
It is not recommended to mix powdered bleach with developer from a hair dye as they may have different formulations and mixing them could result in an unpredictable chemical reaction. It's best to follow the instructions provided with the hair dye for the best results and to avoid damaging your hair.
mix it with water
put lavender in powder and mix it together.
You should feed it every 2 hours on powdered baby milk. After about 3 weeks add a bit of rusk to the mix to give it something more solid.