السلام عليكم حدا حل اسايمنت تشبتر 2 للمادة ؟؟؟؟؟؟؟؟
نحنا ما نشرح النا هل تشبتر ونزل الواجب وما عرفانين حله
هي الاسئلة :
Choose the correct answer:-
1. The atomic number represents the number of __________ and the mass number represents the number of _________.
a) Electrons, protonsandneutrons.
b) Electrons; protons.
c) Protons; protons plus neutrons.
d) Protons; neutrons.
2. The number of electrons in the outermost shell of an atom will determine
a) The number of electrons that are located in the inner shells.
b) How many neutrons are contained in the nucleus.
c) The atomic mass of the atom.
d) The type of chemical bond that it may form.
3. In order to replace your body's electrolytes, you would want to consume a compound that originally contained __________ bonds.
a) Singlecovalent.
b) Hydrogen.
c) Ionic.
d) Stable.
4. Which of the following statements does not describe inorganic compounds?
a) Water is a type of inorganic compound.
b) Inorganic compounds may contain ionic bonds.
c) Inorganic compounds typically are simple structurally.
d) Inorganic compounds always contain carbon.
5. Which of the following statements does not apply to water?
a) Water contains ionic bonds.
b) Water acts as a solvent.
c) Water is involved in many of the body's chemical reactions.
d) Water is important in maintaining body temperature.
6. Which category of fats is likely to increase the risk of cardiovascular disease?
a) Polyunsaturated.
b) Saturated.
c) Monounsaturated.
d) essential fatty acids
7. Humans have a large number of different enzymes because each enzyme is:
a) Highly inefficient.
b) Quickly decomposed.
c) Highly specific.
d) Can only be utilized one time.
8. Which of the following statements would not describe DNA?
a) The DNA molecule is double stranded.
b) The building blocks of DNA are nucleotides.
c) It contains the bases adenine, thymine, cytosine, and guanine.
d) DNA contains the sugar ribose.
9. Why is ATP important?
a) ATP is our body's energy-transferring source.
b) ATP regulates our body's PH.
c) ATP is one of our body's most abundant inorganic compounds.
d) ATP comprises our body's genes.
10. 96% of the human body is composed of the elements carbon, hydrogen, oxygen, and:
a) Nitrogen.
b) Calcium.
c) Sodium.
d) Phosphorus.
اسايمنت ch:2
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