Cards in this guide (17)
What happens in a synthesis reaction
two substances combine to form a new substance
What does percent composition tell you about a molecule
It tells you how much of a molecule is made up of each element. - APEX
How does one determine a percent composition from an empirical formula
divide the total mass of the element by the mass of the compound
and multiply by 100%
What is the molecular formula of the compound ch2 with molar mass equals 168 gmol
What best describes a bond formed between two unlike atoms
The type of bond is determined by the difference in
electrongativity of atoms
What type of reaction is NaOH plus HCI-------------- H2O NaCI
Why are prefixes used in naming covalent compounds
The same atoms can combine in more than one ratio.
What are the substances you end up with in a chemical reaction called
Why does the s orbital fill before the p orbitals
The s orbital is lower in energy than the porbital.
What reaction shows a compound breaking apart into separate substances
Which concentration unit is independent of temp
The unit of concentration is Molar = Moles/Litre.
If the reactants of a reaction have one S and four O atoms what will the product have
One S atom and four O atoms
What happens in a double replacement reaction
In this reaction a change of bonds of the reactants occur: the general form is:
AB + CD = AD + BC
What is a following is a decomposition reaction
What does insoluable mean in science terms
Which of the following has the largest radius K plus Na plus Na or K
Potassium has the largest atomic radius.
so3 is an empirical formula for which of the following A. so4B.s2o6C.s4o2D.s2o3