(01.03 MC) Which action best demonstrates the transformation of mechanical energy to heat energy and light energy?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

One similarity and one difference between an element and a mixture of elements