No, 100g and 100ml are not the same. 100g refers to the weight of a substance, while 100ml refers to the volume of a substance. Different substances have different densities, so 100g of one substance may take up a different volume than 100ml of another substance. Therefore, it is important to consider the specific density of the substance when comparing weight and volume measurements. **

The longevity of a 100ml perfume can vary depending on the concentration of the fragrance, the quality of ingredients, and individual body chemistry. On average, a 100ml perfume can last anywhere from 6 months to 2 years with regular use. Factors such as how often it is applied, where it is stored, and the type of fragrance notes can also impact its longevity. **

The duration of a 100ml sunscreen can vary depending on how frequently it is applied and the level of sun exposure. As a general guideline, if applied generously and regularly, a 100ml sunscreen can last for about 10-15 applications. However, if used sparingly or in high sun exposure conditions, it may last for fewer applications. It's important to reapply sunscreen every 2 hours or after swimming or sweating to ensure adequate protection. **

The duration a 100ml bottle of perfume lasts can vary depending on how frequently it is used. On average, if used daily, a 100ml bottle of perfume can last anywhere from 3 to 6 months. However, if the perfume is used sparingly or for special occasions, it could last up to a year or more. The longevity of the perfume also depends on the concentration of the fragrance and the number of sprays used per application. **

To dissolve 30g of salt in 100ml of water, start by heating the water in a pot or kettle until it reaches a near-boiling temperature. Then, slowly add the salt to the hot water while stirring continuously. Keep stirring until all the salt has dissolved. Once the salt is fully dissolved, allow the solution to cool before using it. **

You are generally allowed to bring as many 100ml bottles as can fit in a single, clear, resealable 1-quart plastic bag in your carry-on luggage. This is in accordance with the TSA's 3-1-1 liquids rule, which allows each passenger to bring liquids, gels, and aerosols in containers of 3.4 ounces (100ml) or less, all of which must fit in the quart-sized bag. However, it's always best to check with your specific airline and the TSA guidelines for the most up-to-date information. **

Acid is not transparent. In its liquid form, acids are typically colorless or have a slightly yellowish tint. However, they are not transparent as they can be seen and have a distinct appearance. Additionally, some acids can emit fumes or have a cloudy appearance, further indicating that they are not transparent. **

You are allowed to put as many 100ml containers as can fit into a single quart-sized clear plastic bag. The maximum capacity for the bag is one quart, which is approximately 946ml, so you can fit up to 9-10 100ml containers in the bag. However, it's important to note that the total volume of liquids in the bag cannot exceed 1 quart, so you may need to adjust the number of containers based on their individual sizes. **