Test #3 Chapter 2: 1) What is matter? 2) What is mass? 3) Matter that has a uniform and definite composition is called a ______. Give an example. 4) A quality/condition of a substance that can be observed/measured without changing the substance is a ________ __________. Give examples. 5) What are the three states of matter? Put the correct state of matter in each box. 6) What is the difference between gas and vapor? 7) What is a physical change? Give an example. 8) A physical blend
Premium Proton Chemical element Neutron
Chapter 1 * What is Chemistry? -it is the study of the composition of substances and the changes they undergo. * What are the 5 branches of chemistry? * Organic chemistry‚ inorganic chemistry‚ analytical chemistry‚ physical chemistry‚ biochemistry. * What is the difference between a theory and law? -a theory is a thoroughly tested explanation of why experiments give certain results. A scientific law is a concise statement that summarized the results of a broad spectrum of observations
Premium Atom Chemistry Electron
electrons. protons. neutrons. isotopes. Question 2 of 20 The structural unit that retains the properties of an element is the molecule. atom. cell. electron. Question 3 of 20 Which of the following are found in the nucleus of an atom? Protons Neutrons Electrons A and B Question 4 of 20 The component of an atom or molecule that is most important in determining its chemical properties is the isotope. neutron. electron. proton. Question
Premium Atom Hydrogen Oxygen
Chromium‚ Chromiuim‚ Chromium‚ Oh my oh my‚ sweet Chromium What did Nicolas Louis Vauquelin say when he first discovered you? Did he know that you were going to have 24 protons and exactly 24 electrons? Or even 28 neutrons… No? So how did the world figure you all out? Was it because you were such a beautiful silvery transition metal? Or maybe it was your mesmerizing amount of atomic mass… Ya’ know‚ it being 51.996. Are other elements attracted to you because you are simply‚ Odorless
Premium Transition metal Chemical element Silver
Week 2 Quiz Which of these is NOT one of the four general categories of cells that make up the human body? collagen cells muscle cell neuron connective tissue cell epithelial cells What is the term for the developmental process that leads to specialized cell types? homeostasis differentiation positive feedback genomics acclimatization If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant‚ which of these best
Premium Atom Hydrogen Electron
artificially make them in laboratories. [1][3] Explanation- How does the size of an element affect the stability? What does the term ‘stable’ mean? In atoms‚ there is a force that holds the nucleus together. It is called Binding energy. The more protons and neutrons the
Premium Chemical element Neutron Atomic number
maintaining a relatively stable pH 11 : A pure substance‚ made up of only one kind of atom 12 : Dissociate to form equal amounts of hydrogen ion and hydroxide ion 13 : Number of protons in the nucleus; determines the type of atom 14 : Opposite of base 15 : When acids and bases mix and form salts Answer : Proton : Neutron : Atomic number : Element : Molecule : Compound : Water molecules : Base : Acid : Neutralization : Buffers
Premium Atom Chemistry Skin
Section A: Analyse the strategic market environment of Saga Holidays Introduction Saga Holidays was a family-run business which started from year 1948. This business had steadily grown until nowadays. As a result‚ it has recognised reputation as a travel organiser that concentrated serving the older target market only. However‚ the chairman of the Saga Holidays had decided to retire in October 2004. Thus‚ he had sold the organisation to the Charterhouse with an incredible amount of £1.35bn
Premium Marketing Balance sheet Generally Accepted Accounting Principles
explains the atomic structure and ions‚ properties of water and pH‚ organic molecules‚ chemical reactions and enzymes. With atomic structure there are three subatomic particles that form together to create an atom of an element; protons‚ neutrons‚ and electrons. Protons are positively charged and form the nucleus of an atom with neutrons that carry no charge. Electrons are negatively charged and are constantly moving around the nucleus. Ions are created when electrons move from one atom to another
Free Atom Chemical bond Hydrogen
to the carbon family https://www.britannica.com/science/tin. Tin consists of 50 Protons‚ 69 Neutrons and 50 electrons. (my citation for where i got this information is the periodic table you gave to us.) The atomic number of tin is 50 because the atomic number is usually the same number of protons. The atomic mass is 118.71 u. I used my knowledge from the recent years in biology and physical science to use the protons and neutrons to determine the atomic mass. Tin is a metal because it is ductile
Premium Atom Uranium Chemistry