Elements and Compounds

All of the materials and substances that we experience are made up of elements
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Views #: 56
Questions #: 7
Time: 5 minutes
Pass Score: 80.0%
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All of the materials and substances that we experience are made up of 100 of so __________

Missing
POINTS (1)

Correct Answer

Explanation

Choose the right elements

Hydrogen
Oxygen
Carbon
Water
Honey
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Explanation

Most substances we deal with daily are

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Explanation

A __________ is a chemical combinations of two or more elements

Missing
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Explanation

A compound is

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Correct Answer

Explanation

Identify the elements of each compound

  1. Water is composed of and
  2. Carbon dioxide is composed of and
drag and drop the selected option to the right place or type it instead
oxygen
nitrogen
hydrogen
carbon
helium
POINTS (1)

Correct Answer

Explanation

Identify each of these as an element or a compound

  1. (1) transparent water
  2. (2) transparent alcohol
  3. (3) transparent carbon
  4. (4) transparent hydrogen
  5. (5) transparent aluminum

(c) compound (e) element

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c
e
POINTS (1)

Correct Answer

Explanation

0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

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