Sb + 3hcl _ sbcl3+ h2 me ayudan esta ecuación en metodo de tanteo los números son pequeños los pequeños solo que no los puedo poner pequeños necesito ayuda ​

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6