問題一覧
1
what is the proper formula of the ionic compound that forms between ammonium and sulphite ions?
(NH4)2SO3
2
which of the following reactions represents the balanced neutralization reaction of sulphuric acid with sodium hydroxide?
H2S04(ag) + 2NaOH (aq) - -> Na2S04(ag) + 2H20(1)
3
what are the products of the single displacement reaction between AlBr3(aq) and Cl2(g)?
AlCl3(aq) and Br2(l)
4
match
1. G 2. H 3. A 4. B 5. I 6. J 7. C 8. K
5
Unspecialized cells in the human body are called?
stem cells
6
Which letter(s) represent the female part of the flower?
V, W, and X
7
List four signs/clues that indicate a chemical reaction has occurred.
1. colour changes 2. precipitate is formed 3. gas bubbles are produced 4. heat/light is given off
8
which of the following substances is not an acid?
NaOH
9
what name is the ionic compound Mg3P2?
magnesium phosphide
10
If a microscope has a 40x objective lens in place and a 10x ocular lens, the total magnification of the mi under these conditions is___
400x
11
Which of the following is not an advantage of using X-rays as a medical imaging tool?
The high energy radiation can cause mutations to the DNA of exposed cells.
12
The two organ systems in plants are:
roots and shoots
13
what is the name of the acid H3PO4(aq)?
phosphoric acid
14
The tissue type found in the stem of plants that is responsible for transporting materials throughout the plant is the___
vascular tisse
15
what are the reactants in a neutralization reaction?
an acid and a base
16
coffee has a ph of 5.0, while milk has a pH of 6.0. which of the following statements is true?
coffee is 10 times more acidic than milk
17
Two different aqueous solutions sit on a laboratory bench and appear identical. One is HCI (aq) and the other is NaOH (aq), but unfortunately the labels of the solutions have fallen off. Explain how litmus paper, and the acid-base indicator phenolphthalein could be used to identify each solution.
Acid: Litmus paper is red and phenolpithalein is clear. Base: Litmus paper is blue and phenolphthalein is pink.
18
diagram #4
A. Mesophyll B. Guard C. Cuticle D. Epidermal E. Vascular
19
The ionic compound K3PO3 contains a polyatomic ion. what is the name of this compound?
potassium phosphite
20
which of the following equations is a double displacement reaction?
(NH4)2CO3(ag) + Ca(OH)2(aq) --> 2NH4OH(aq) + CaCO3(s)
21
The cell theory is a list of ideas that describe the functions and importance of cells in living organisms. Which of the following statements is not a part of the cell theory?
cells can form from non living matter
22
what would be the general chemical equation(GCE) for a synthesis reactions?
A + B —> AB
23
Diagram #2
A. vacuole B. cell wall C. endoplasmic reticulum D. nucleus E. chloroplast
24
what is the term for the substances listed on the left side of a chemical equation?
reactants
25
H202 is commonly called hydrogen peroxide. what is the chemical name for this compound?
dihydrogen dioxide
26
WHAT IS THE NAME OD THE ACID H2S(ag)?
hydrosulphuric acid
27
What type of reaction almost always gives off large amounts of heat and light?
combustion
28
The male reproductive parts of the flower are called the___
stamen
29
what is the general chemical equation (GCE) for a of single displacement reactions?
AB + C —> CB + A
30
a chemical change occurs when:
propane is combustion in a BBQ
31
which ionic compounds includes a polyatomic ion?
NH4Cl
32
diagram #3
A. Esophagus B. liver C. Gallbladder D. large intestines E. small intestines
33
What type of animal tissue consists of cells that are tightly packed together to form a protective barrier?
epithelial tissue
34
What type of tissue is blood?
connective tissue
35
Diagram #1
A. ribosome B. cytokeleton C. Gologi Body D. Nucleolus E. Lysosome
36
To measure the strength of acids and bases, the pH scale is used. what does the abbreviation "pH" stand for?
the power of hydrogen
37
Air to Mitochondria
Air, nose/mouth, trenchea, bronchi, bronchioles, alveoli, pulmonary vein, left atrium, left ventricle, aorta, artery, arteriole, capillary, cell membrane, cytoplasm, mitochondria
38
he correct order of food passage through the digestive system is__
esophagus, pancreas, small intestine, rectum, large intestine.
39
What is the proper order for the stages of cell division, from earliest to latest?
Prophase, metaphase, anaphase, telophase
40
which of the following methods provides the most non-specific measurement of pH?
litmus paper
41
Which of the following is an example of a molecular element?
I2
42
What is the purpose of the arteries?What is the purpose of the arteries?
to carry blood away from the heart
43
Mitochondria to air
Mitochondria, cytoplasm, cell membrane, capillary, venules, vein, vena cava, right atrium, right ventricle, pulmonary artery, alveoli, bronchioles, bronchi, trenchea, nose/mouth, air
44
Calcium power reacts with zinc chloride to form calcuim chloride and zinc. what kind of reaction is this?
single displacement
45
which set coefficients correctly balances the following?__S8(s) +_ P4(s) --> P4S3(s)
3,8,8
46
The tube that connects the mouth to the stomach is the___
esophagus
47
What term is used to describe groups of cells that function together to perform specialized tasks?
tissues