To prepare 100g of salt water with a content of 15% w / w dissolve A) 155 salt in 100g of water B) 15g of salt in 85g of water C1 15g of salt in 105g of water. Justify your answer​

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery