1.15 g of a metallic element reacts with 300 cm3 of oxygen at 298 k and 1 atm pressure, to form. an oxide which contains o2– ions. what could be the identity of the metal? a calcium. b magnesium. c potassium. d sodium

What is the percentage of hydrogen in nitrogen trihydride

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

At element makes up all organic compounds?