WebWhat is true of a compound? It does not always retain the properties of the substances that make it up. Which of the following two ingredients can combine to make a compound? Hydrogen and oxygen. Which of the following is a heterogeneous mixture? cereal. Which of the following is an example of a chemical element? WebNote that an element: consists of only one kind of atom, cannot be broken down into a simpler type of matter by either physical or chemical means, and; can exist as either atoms (e.g. argon) or molecules (e.g., nitrogen). …
2.5: Classifying Matter According to Its Composition
WebCompounds. A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form … WebNov 28, 2024 · It is possible to have a mixture of 2 different elements, 2 different compounds, or even a mixture of elements and compounds. In addition to those possible combinations that make up mixtures, it ... open meadows foundation grants
Elements, Compounds, and Molecules - ketteringschools.org
WebOct 4, 2024 · For example, you inhale carbon dioxide, nitrogen, and oxygen. Thus air is itself a widespread mixture. All substances can be divided into two types: Pure substance is a combination of elements of the same type. For example, elements such as copper and zinc are pure substances. The fact is that these substances consist of one component: a … WebAnswer (1 of 5): Sure,if the elements don't react with each other. A mixture is a substance which has two or more constituents and possesses the chemical properties of all … WebApr 10, 2024 · Potting mix can have a texture like rolled oats, or even coleslaw, but seed starting mix should be about as fine as cornmeal (with a few bigger perlite chunks.) General purpose seed-starting mix: 4 parts coco coir. 3 parts perlite. 1 part worm castings. 1 tbsp garden soil per 5 gallons of finished potting soil. open meadow alternative school portland