Fixed-Price. A fixed-price agreement is not a cost-reimbursement contract. The contractor estimates the total cost of materials and labor, and includes that in his bid price, and the contract is generally awarded to the lowest bid.The total pay the contractor receives covers these costs.ixed-Price. A fixed-price agreement is not a cost-reimbursement contract. The contractor estimates the total cost of materials and labor, and includes that in his bid price, and the contract is generally awarded to the lowest bid.
Swirl to mix. By adding the soap after the water, you won't end up with a lot of bubbles at the top. Fill the rest of the dispenser with water, leaving a little space at the top of the container for the pump. Screw on the lid/pump and shake. Pump the dispenser a few times to get the foaming started.
Best Answer: Soaps are the sodium or potassium salts of fatty acids. The tails of the soap molecules are chemically equivalent to fat or oil, i.e. they are both hydrophobic and non-polar. Therefore, soap can dissolve in oil. The heads of soap molecules, however, are hydrophilic and ionic in character. This allows them to dissolve in ionic and polar substances, e.g. water. When oily dirt is immersed in a soap solution, the tails attach themselves to the oil.