| Chemical properties and changes | Elements and Compounds | Water and Mixtures | Solids, Liquids,and Gases | Cell Division |
|---|---|---|---|---|
|
Group 17 (Halogens)
Which group on the periodic table is the most reactive nonmetal
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18 groups
How many groups are in the periodic table?
|
Homogeneous and heterogeneous mixtures
What are the two main types of mixtures?
|
Melting
The change of matter from the solid state to the liquid state is called:
|
Prophase
What is the first stage of mitosis?
|
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Ionic bond
What type of chemical bond join the atoms of NaCl?
|
Br
What is the symbol for the only liquid nonmetal?
|
Add more solvent
How to dilute a mixture?
|
0⁰C
What is the melting point of pure water is?
|
4
How many cells are produced at the end of meiosis?
|
|
Water and Sodium chloride
What products are formed when HCl reacts with NaOH?
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Neutral
When an atom has an equal number of protons and electrons, then this atom is:
|
Salt
What is the solute in a saltwater solution?
|
Sublimation
The change of the solid state directly to gas state is:
|
Mitosis
By which division the zygote develops into a new an organism?
|
|
Decomposition reaction
What type of chemical reaction is electrolysis of water?
|
Positive
What is the charge of the nucleus of an atom?
|
Filtrate
During filtration, the collected liquid in the flask is called:
|
freezing
The melting point of a substance is the same as its ____point.
|
asexually by budding
How do hydras reproduce?
|
|
Single Replacement Reaction
What is the type of the given chemical reaction?
K + NaCl -----> KCl + Na |
45 atoms
What is the total number of atoms in table sugar?
|
Distillation
Which method separates parts of a mixture by vaporization and condensation?
|
The volume of the gas increases
What will happen to the volume of the gas as temperature is increased at a constant pressure?
|
metaphase I
During _________, pairs of chromosomes line in the middle of the cell.
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