Mendeleev - Study guides, Class notes & Summaries

ABCTE Elementary Education Exam 206 Questions with Verified Answers Magna Carta - CORRECT ANSWER (1215) a charter of liberties (freedoms) that King John "Lackland" of Englad was forced to sign; it made the king obey the same laws as the citizens of his kingdom 13th Ammendment - CORRECT ANSWER officially abolished slavery, prohibits involuntary servitude. Articles of Confederation - CORRECT ANSWER 1st Constitution of the U.S. (weaknesses-no executive, no judicial, no power to tax, n...

atoms small fundamental units, the smallest unit of an element that retains the properties of that element macroscopic large enough to be seen with the naked eye Brainpower Read More microscopic small enough to only be seen with a microscope submicroscopic too small to be seen with a microscope Aristotle Which Greek philosopher claimed that matter is continuous and made of a combination of four fundamental qualities? Democritus Which Greek philosopher...

What is the charge of a proton? - ANSWER-+1 What is the charge of a neutron? - ANSWER-0 What is the charge of an electron? - ANSWER--1 What is the relative mass of a proton? - ANSWER-1 What is the relative mass of a neutron? - ANSWER-1 What is the relative mass of an electron? - ANSWER-Very small How many types of atoms do elements contain? - ANSWER-Only one type What are compounds? - ANSWER-Substances containing two or more different elements that are chemically bonded toge...

How do isotopes of the same element differ? They have different number of neutrons Which scientist was responsible for developing the format of the modern periodic table? Mendeleev Current, or the amount of electricity that is flowing, is measured in Amperes or Amps What property of motion explains why passengers in a turning car feel pulled toward the outside of the turn? inertia According to the Ideal Gas Law, if a certain amount of gas is being held at a consta...

GCSE EDEXCEL TRIPLE SCIENCE CHEMISTRY PAPER 2 2024/2025 QUESTION PAPER ALREADY PASSED What does 'aq' mean? - answer Aqueous - it is dissolved in water Water - formula - answer H20 Ammonia - formula - answer NH3 Carbon Dioxide - formula - answer CO2 Hydrogen - formula - answer H2 Chlorine - formula - answer Cl2 Oxygen - formula - answer O2 Ammonium (ion) - formula - answer NH4 (+) Hydroxide (ion) - formula - answer OH (-) Nitrate (ion) - formula - answer NO3 (-) Carbonate (ion) -...

AQA GCSE Chemistry - Paper 1 questions and answers well illustrated. What is the charge of a proton? - correct answers.+1 What is the charge of a neutron? - correct answers.0 What is the charge of an electron? - correct answers.-1 What is the relative mass of a proton? - correct answers.1 What is the relative mass of a neutron? - correct answers.1 What is the relative mass of an electron? - correct answers.Very small How many types of atoms do elements contain? -...

Matter is measured in _____. - kilograms Energy is measured in? - joules or electron volts Atoms and molecules are the fundamental building blocks of? - matter Radio waves, light and x-rays are all examples of ____energy. - Electromagnetic A moving object has _____ energy. - kinetic The energy of x-rays is _____. - electromagnetic The basic quantities measured in mechanics are _____, _____, and _____. - mass, length, time An example ...

Question Answers Extra information Mark AO / Spec. Ref 01.1 any one from: • so elements / iodine / tellurium were in groups with similar properties • iodine has similar properties to Br / Cl / F / Group 7 • iodine has different properties to Se / S / O / Group 6 ignore reference to atomic structure ignore references to Cr, Mn and Mo allow corresponding argument in terms of tellurium 1 AO1 4.1.2.2 01.2 Mendeleev had predicted properties of missing elements element...

RTF Chapter 4 Questions Bank with 100% Correct Answers 1. An unknown substance dissolves readily in water but not in benzene (a nonpolar solvent). Molecules of what type are present in the substance? A) neither polar nor nonpolar B) polar C) either polar or nonpolar D) nonpolar E) none of these - Answer️️ -B) polar 2. The interaction between solute particles and water molecules, which tends to cause a salt to fall apart in water, is called A) hydration B) polarization C) dispersi...

There are ________ unique substances (elements) arranged on an amazing chart that reveals their hidden secrets to anyone who knows how to read it. 118 All the gold ever mined would fit into a single cube about _______ feet on a side. 60 Three-quarters of the elements are ________________. metals How an atom reacts chemically depends on how willing it is to share _________________ with others. electrons How much would a 60 pound block of gold be worth in dollars? $...