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Q 1/29
Score 0
Living material is primarily made up of four __(((( _____ ))))__: hydrogen (H), __((((______))))__ (C), nitrogen (N), and __((((______))))__ (O), which constitute approximately 96% of all living matter.
30
carbon, protons, netrons
elements, carbon, oxygen
carbon, protons, oxygen
elements, protons, netrons
Q 2/29
Score 0
The remaining 4% is __((((______))))__ of trace elements that are necessary for __((((_____))))__ tissue but are only required in small __((((_____))))__.
30
electron, living, quantities
neutral, living, quantities
composed, living, quantities
shell, living, quantities
29 questions
Q.
Living material is primarily made up of four __(((( _____ ))))__: hydrogen (H), __((((______))))__ (C), nitrogen (N), and __((((______))))__ (O), which constitute approximately 96% of all living matter.
1
30 sec
Q.
The remaining 4% is __((((______))))__ of trace elements that are necessary for __((((_____))))__ tissue but are only required in small __((((_____))))__.
2
30 sec
Q.
Most living things are made up of hydrogen, carbon, nitrogen, and oxygen.
3
30 sec
Q.
What do atoms making elements possess?
4
30 sec
Q.
"What are elements?”
5
30 sec
Q.
About 96% of all living material is composed of four _______.
6
30 sec
Q.
Elements are substances composed of only a single type of _________
7
30 sec
Q.
You can expose these atoms to high heat and get molten ________.
8
30 sec
Q.
About 90% of the 109 total elements are found in _______.
9
30 sec
Q.
Elements are arranged, from lightest to heaviest, on the periodic
10
30 sec
Q.
The number found above the symbol for each element is the atomic_________.
11
30 sec
Q.
Whether you have one aluminum atom or millions of aluminum atoms, nothing can be done to change them into anything other than _______
12
30 sec
Q.
Atoms that combine with others will form compounds.
13
30 sec
Q.
What do some atoms with entirely filled electron shells do?
14
30 sec
Q.
Tiny particles that make up everything around us. Example: Oxygen and hydrogen are elements that combine to form water ____________________________________.
15
30 sec
Q.
A chart that shows all the different elements, arranged from lightest to heaviest. Example: We use it to find information about different elements
16
30 sec
Q.
Substances are formed by combining two or more elements. Example: Water is a compound made up of hydrogen and oxygen ___________________________________.
17
30 sec
Q.
They are related to or derived from living organisms. Example: Fruits and vegetables are organic foods ____________________________________
18
30 sec
Q.
The four elements that make up most living things are hydrogen, carbon, nitrogen, and oxygen.
19
30 sec
Q.
Organic compounds are things in nature that are made up of carbon and can also contain other elements which of the following is correct?
20
30 sec
Q.
What is the basic building block of all matter?
21
30 sec
Q.
What is the term for a substance made up of two or more atoms chemically bonded together?
22
30 sec
Q.
Which of the following represents a molecule?
23
30 sec
Q.
Which of the following organic compounds is known as the 'building blocks of life'?
24
30 sec
Q.
Which of the following is an example of an inorganic molecule?
25
30 sec
Q.
Which of the following is NOT a property of molecules?
26
30 sec
Q.
Which of the following is an example of an organic molecule?
27
30 sec
Q.
What is the term for a molecule that has a positive charge at one end and a negative charge at the other end?
28
30 sec
Q.
Which of the following is the smallest unit of a compound that retains its chemical properties?
