- Study guides, Class notes & Summaries

Looking for the best study guides, study notes and summaries about ? On this page you'll find 28 study documents about .

All 28 results

Sort by:

Exam (elaborations)

Chemistry BMAT- Separation Techniques Review Questions and Answers
-

-

-

2

June 2024

2023/2024

A+
what are physical differences that elements or compounds may have solubility mp/bp particle size or mass what is the difference between a miscible liquid and an immiscible liquid -miscible mix well with another to form a homogenous solution immiscible liquids cannot mix to give single phase. eg. water and oil as oil floats on top of water What is decantation? -process to seperate mixtures by removing a liquid layer that is free of a solid or another liquid can be used to seperate mixtures of I...
Salano
$9.49 More Info

Exam (elaborations)

Chemistry BMAT Practice Test Questions and Answers
-

-

-

9

June 2024

2023/2024

A+
Quantitative chemistry The sum of atomic mass (Ar) values in a molecule is the molecular mass (Mr) Avogadro's constant gives the number of particles in one mole of a substance: Number of particles = Avogadro's constant x number of moles One mole of a substance has a mass (in grams) equal to the Ar or Mr. Mole = mass x Mr The percentage composition of a particular element in a molecule can be calculated by dividing the Ar of the element by the total Mr of the molecule. The empirical formula is ...
Salano
$9.49 More Info

Exam (elaborations)

BMAT SECTION 2 CHEMISTRY PRACTICE QUESTIONS AND ANSWERS
-

-

-

22

June 2024

2023/2024

A+
Test for hydrogen Squeaky pop Test for a Carbonate anion (CO32-) React with an acid to release carbon dioxide gas. Effervescence is observed and the production of carbon dioxide can be confirmed using limewater. ALTERNATIVLEY: A solution of a carbonate will also be alkaline, which can be shown using universal indicator or a pH probe. Ionic equation when testing for a carbonate anion: 2H+(aq) + CO32−(aq) → H2O(l) + CO2(g) Silver compounds are all ______________ except for ________________....
Salano
$11.99 More Info

Exam (elaborations)

BMAT PREP CHEMISTRY QUESTIONS AND ANSWERS
-

-

-

8

June 2024

2023/2024

A+
SALTS All solid salts consist of positive and negative ions, and some of them contain water molecules as well. The water in a lattice is called water of crystallisation. One mole of a hydrated salt always has a certain number of moles of water of crystallisation shown in the formula. For example, hydrated copper sulphate (CuSO4.5H2O) has five moles of water for each mole of the salt. GROUP 1 Group 1 elements are alkali metals. They are metals that are usually stored under oil or argon to stop t...
Salano
$9.49 More Info

Exam (elaborations)

BMAT Ninja Chemistry- Chemical Bonding, Structure + Properties and Groups
-

-

-

3

June 2024

2023/2024

A+
What is an element a Substance that contains only ONE type of atom. What is a compound 2 or more elements chemically combined What is a mixture A combination of two or more substances that are not chemically combined (can be physically separated) What is the structure of ionic compounds giant ionic lattice with a regular arrangement How are the ions held together in ionic bonding? - by strong electrostatic forces of attraction Why do ionic compounds have high melting and boiling points? ele...
Salano
$9.49 More Info

Exam (elaborations)

BMAT Exam – Chemistry Study Questions and Answers
-

-

-

8

June 2024

2023/2024

A+
Proton = r.m is 1, r.c is +1 Neutron = r.m s 1, r.c. is 0 Electron = r.m is 0.0005, r.c is -1 State the relative mass and charge of: a. Proton b. Neutron c. Electron The number of protons in the nucleus of an atom. What does the atomic number represent? The number of protons and neutrons n the nucleus of an atom. What does the mass number represent? NO OVERALL CHARGE - the number of protons is equal to the number of electrons. What s the overall charge of an atom? 2,8,8 What is the electroni...
Salano
$9.49 More Info

Exam (elaborations)

BMAT Chemistry Study Set with Questions and Answers
-

-

-

11

June 2024

2023/2024

A+
What is the formula of a buckminsterfullerene? C60 What is the ionic equation for acid + carbonate? 2H+ (aq) + CO3 2- (aq) -> H2O (l) + CO2 (g) What is the ionic equation for acid + ammonia? H+ (aq) + NH3 (aq) -> NH4 + (aq) Describe the ionic equation of a precipitation reaction. 1. Only ions used to form precipitate are included 2. The product will be (s) What is the value of Avogadro's constant? 6.022 x 10^23 What is a saturated solution? A solution in which no more solute can diss...
Salano
$9.49 More Info

Exam (elaborations)

BMAT Chemistry Study Questions and Answers
-

-

-

7

June 2024

2023/2024

A+
solubility is a measure of How easily something will dissolve in a solvent What does solubility depend on Strength of the attractions within the substance being dissolved and between the solute and solvent Solubility increases with temperature True or False True What is the only non- metal that is a good conductor Graphite What allows transition metals to be catalysts More than one ion/variable oxidation states Group 1 metal plus water Metal hydroxide plus hydrogen Fluorine properties A v...
Salano
$9.49 More Info

Exam (elaborations)

BMAT Chemistry Q&A Study Guide
-

-

-

5

June 2024

2023/2024

A+
nucleus middle of the atom, contains protons and neutrons, positive charge protons positively charges neutrons no charge electrons negative charge number of protons equals number of electrons atoms of an element have the same number of protons one proton in nucleus hydrogen two protons in nucleus helium horizontal rows periods vertical colups groups elements in the same groupo similar properties group same number of electrons in their outer shell group 18 noble gases - eight electron...
Salano
$9.49 More Info