1.
which type of matter, that cannot be broken down into simpler substances, makes up all matter in the universe?
2.
elements are made of one kind of ____
3.
which of the following is an element
a.water
b.air
c.gold
d. soil
4. elements and compounds are both pure ___
5. which of the following to ingredients can combine to form a compound
a. salt and water
b. oil and vinegar
c. sugar and tea
d.carbon and oxygen
6.what holds the atoms of a molecule or compound together?
7.two or more atoms of one kind make up a ___ when they combine
8. which statement is true
a. sugar is a compound, but its not a molecule
b. sugar is a molecule, but its not a compound
c. sugar is both a molecule and a compound
d. sugar is an element
9. which of the following statements about compounds is true
a. a compound can be made of one type of element or of different elements
b.a compound has different properties that the individual elements that form the compound
c. all molecules are compounds, and all compounds are molecules
d. the individual properties of each element remains intact when elements form compounds
10
which combination of atoms forms a compound
a. oxygen only
b. both water and oxygen
c. water only
d.neither water not oxygen
what are your answers? We can check them.
Or is this just another homework dump?
im not sure what any of the answers are because my teacher hasn't taught this yet so in a way i guess it could be considered a homework dump
1. The type of matter that cannot be broken down into simpler substances and makes up all matter in the universe is called an element. To find out which element specifically makes up all matter in the universe, one can refer to the periodic table of elements.
2. Elements are made of one kind of atom. Atoms are the building blocks of elements, and each element is characterized by a specific type of atom.
3. Among the options given, gold (option c) is an element. Gold is a chemical element with the symbol Au and atomic number 79.
4. Elements and compounds are both examples of pure substances. A pure substance is a form of matter that has a constant composition and specific properties.
5. Salt and water (option a) can combine to form a compound. When sodium chloride (salt) is dissolved in water, it forms a compound called sodium chloride solution.
6. The force or attraction that holds the atoms of a molecule or compound together is called a chemical bond. Chemical bonds can be ionic, covalent, metallic, or other types.
7. Two or more atoms of one kind make up a molecule when they combine. For example, two hydrogen atoms combine to form a hydrogen molecule (H2).
8. The statement "sugar is both a molecule and a compound" (option c) is true. Sugar, specifically table sugar or sucrose, is a compound made up of carbon, hydrogen, and oxygen atoms. It is also a molecule because it consists of two or more atoms chemically bonded together.
9. The statement "a compound can be made of one type of element or of different elements" (option a) is true. Compounds can be made up of either one type of element (such as oxygen gas - O2) or different elements (such as water - H2O).
10. The combination of atoms that forms a compound is "water and oxygen" (option b). Water, represented by the chemical formula H2O, is a compound composed of two hydrogen atoms and one oxygen atom bonded together. Oxygen alone (option a) does not form a compound, and neither "water only" nor "neither water nor oxygen" (options c and d) accurately describe the formation of a compound.