7. )When a solid substance absorbs enough heat, it starts to liquefy due to the intense energy of the constituent atoms and molecules. Example melting of ice. When a liquid absorbs heat, it starts to vaporize and escape into the atmosphere.. the ANSWER IS LETTER: A
8.)Boiling point and melting point are extensive properties. Freezing is the change of state of liquid to solid. The density of a substance is an intensive property. C and D ang pwedeng maisagot its up to u.
9.) Boiling water , human, body, fire, ice so C is the answer
10.) When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space. LETTER C IS THE ANSWER
11.) chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. SO THE ANSWER IS A BURNING WOOD.
12.) Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom. D is the answer
13.) When simple sugars such as sucrose (or table sugar) are heated, they melt and break down into glucose and fructose, two other forms of sugar. Continuing to heat the sugar at high temperature causes these sugars to lose water and react with each other producing many different types of compounds. C= A compound
14.) To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions) A= IS THE ANSWER
15.) C is the answer diko na eexplain pero napagaralan konayan.
Answers & Comments
Answer:
7.)A.
8.)C/D.
9.)C
10.)C
11.)A
12.)D
13.)C
14.)A
15.)C
Explanation:
7. )When a solid substance absorbs enough heat, it starts to liquefy due to the intense energy of the constituent atoms and molecules. Example melting of ice. When a liquid absorbs heat, it starts to vaporize and escape into the atmosphere.. the ANSWER IS LETTER: A
8.)Boiling point and melting point are extensive properties. Freezing is the change of state of liquid to solid. The density of a substance is an intensive property. C and D ang pwedeng maisagot its up to u.
9.) Boiling water , human, body, fire, ice so C is the answer
10.) When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space. LETTER C IS THE ANSWER
11.) chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. SO THE ANSWER IS A BURNING WOOD.
12.) Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom. D is the answer
13.) When simple sugars such as sucrose (or table sugar) are heated, they melt and break down into glucose and fructose, two other forms of sugar. Continuing to heat the sugar at high temperature causes these sugars to lose water and react with each other producing many different types of compounds. C= A compound
14.) To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions) A= IS THE ANSWER
15.) C is the answer diko na eexplain pero napagaralan konayan.
sana nakatulog
Answer:
7.b
8.a
9.d
10.a
11.c
12.b
13.d
14.b
15.c
Explanation:
yan oh