Question

Which of the following options correctly describe different samples of matter? Select all that apply.

a) Elements are composed of only one type of atom.
b) Compounds are composed of different types of atoms chemically bonded.
c) Mixtures can be separated into their individual components by physical means.
d) Atoms are the smallest unit of matter that retains the properties of an element.

Answer 1

Correct answers include elements being composed of a single type of atom, compounds having chemically bonded atoms of different types, mixtures being physically separable into components, and atoms being the smallest units retaining element properties. The answer is all options a,b,c and d.

Step-by-step explanation:

The question about samples of matter can be addressed by examining the correct statements among the given options:

• Elements are composed of only one type of atom.
• Compounds are composed of different types of atoms chemically bonded together.
• Mixtures can be separated into their individual components by physical means.
• Atoms are the smallest unit of matter that retains the properties of an element.

Correct descriptions for different samples of matter are:

1. Elements consist of a single type of atom, such as oxygen, which contains only oxygen atoms.
2. Compounds are formed when two or more different types of atoms are chemically bonded, as in water which combines hydrogen and oxygen.
3. Mixtures like Gatorade, which contains various substances like water, sugar, and electrolytes, can be separated physically, for example, by distillation or filtration.
4. Atoms are indeed the smallest unit of matter that retains the chemical properties of an element, and they are involved in chemical changes.

Hence, The answer is all options a,b,c and d.

Answer 2

a) Elements are composed of only one type of atom.

b) Compounds are composed of different types of atoms chemically bonded.

c) Mixtures can be separated into their individual components by physical means.

d) Atoms are the smallest unit of matter that retains the properties of an element.

Step-by-step explanation:

Matter is anything that has mass and occupies space. Elements, the fundamental substances that make up matter, consist of only one type of atom (a). Compounds, on the other hand, are composed of different types of atoms chemically bonded together (b). This chemical bonding involves the sharing or transfer of electrons, resulting in distinct chemical properties.

Mixtures (c), unlike compounds, are combinations of different substances that are not chemically bonded. Mixtures can be separated into their individual components by physical means, such as filtration, distillation, or chromatography. These separation methods take advantage of differences in physical properties like size, boiling point, or solubility.

Atoms (d) are the basic building blocks of matter and are the smallest unit of an element that retains its properties. While atoms can combine to form molecules in compounds, they remain the smallest unit of an element. The understanding of these concepts is crucial in chemistry, as it helps explain the diversity of matter and the principles governing its interactions.