If 4 grams of water is to be heated from 24.0°C to 53°C to make a cup of tea, how much heat must be added? The specific heat of water is 4.18 Please don't give me an offsite download link, give me an actual answer and explanation

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

In which situation can a mixture always be called a solution

What is the molar mass of ca(cio4)2