An element is a pure substance that cannot be broken down into other substance by physical or chemical means. True O False

Q: Solidification is the process of changing the state of the material from .. ........ powder to solid…

A: Matter is something that consumes space and has mass. All matter is made out of components,…

Q: Define and distinguish between matter, elements, and compounds.

A: Matter, element and compound, these three things form the universe.

Q: the making and breaking of chemical bonds is called

A: A chemical bond is defined as an attraction present between the atoms either due to electron sharing…

Q: Water is a mineral

A: Water is not a mineral since it lacks crystalline form and is a liquid rather than a solid.

Q: two substances from one another based on their appearance

A: All substances are normally manifested by a certain series of physical and chemical properties in…

Q: Which of the following is/are true regarding salts? O they are an ionic compound O they are…

A: Salts are ionic compound, molecules ,electrolytes and dissociate in the presence of water.

Q: Chiral compounds, have identical chemical properties but differing in certain physical and…

A: Chiral compounds contain atleast asymmetric carbon it means chiral carbon is attached with four…

Q: The geometry and structure of large molecules, like proteins, is dictated by

A: The structure and geometry of large biomolecules like proteins is governed by the types of amino…

Q: A _____________ is a type of mixture in which small particles are evenly distributed throughout…

A: When two or more substances mix with each other without participating in a chemical change, the…

Q: displayed on the card below. * The human body is made of: 51% 49% OTHER ELEMENTS WATER

A: The figure shows a pie chart. A pie chart is a circular representation of proportion of specific…

Q: A difference in chemical concentration between one point and another is called a concentration…

A: When concentration of particles is higher in one side of the cell membrane and the other side of…

Q: Which of the following is not an equivalent to ppm? a.mg/L b.ug/g c.g/ton d.uL/mL x 106

A: The abbreviation of ppm is ‘parts per million'. It is also expressed as milligrams per litre (mg/L).…

Q: Which of the following is NOT TRUE about water? It has a high specific heat. O Ice floats in liquid…

A: Water is the most abundant compound that is present on Earth’s surface(71%). In nature, it can exist…

Q: How many grams of NaOH would you need to make 7,252 mL of a 230 mM NaOH solution (m.w. = 40.00…

A: Answer- Here molarity of the solution is provided and requires the amount of weight of NaoH.

Q: Which of the following is a characteristic property of matter that could be used to identify an…

A: Physical and chemical qualities exist in all matter. Physical attributes, such as mass, colour, and…

Q: Which of the following is not a sterol? a. sex hormones b. vitamin D c. lecithin d. cholesterol

A: Sterol is a group which is helpful for the cell development and production of energy in human…

Q: Which of the following is not a deprotonated substance: a) KOH b) LiOH c) HA d) B

A: Protonation is the addition of proton and deprotonation means the removal of the proton.

Q: If an argon atom is neutral, it contains 18 protons and it also contains 18 electrons. O True False

A: An atom has an equal number of electrons and protons, Thus, it has an equal number of negative…

Q: What types of quantities have unlimited significant figures? physical quantities measured…

A: Important Digits-Number of digits in a calculation representing a measurement 's precision rather…

Q: What do you mean by ground substance?

A: The extracellular matrix is a 3-D network of extracellular molecules, such as collagen,…

Q: Which elements would be more likely to make a compound with another element

A: In chemistry an element very basic part of any molecule and it is a pure substance consisting only…

Q: Choose an element from the periodic table that is found in the human body, and write five sentences…

A: All the living organisms are composed of mainly CHON. P and S are second most important elements.…

Q: A ____ is a substance that is dissolved in a liquid.

A: Mixture is a material which is formed by mixing two or substances. If something is dissolved in the…

Q: A 12-ounce can of soda contains the equivalent of O 1 teaspoon of sugar O 4 teaspoons of sugar O 7…

A: 4.) 10 teaspoons of suger

Q: the following? A. Thiamine B. Selenium C. Zinc

A: The clinical scenario is suggestive of keshan  disease which is an endemic cardiomyopathy found in…

Q: Classify the following forms of matter: Blood Homogeneous mixture Silver Elemental atomic pure…

A: An element is a pure substance that cannot be broken down into different types of substances.

Q: lidocaine

A: 2 % lidocaine means 2000 mg / 100ml which is equal to 20 mg/ml. Ordered dose = 100 mg Available dose…

Q: A stromalite is a structure

A: Microbiology is a study of microorganisms that are studied under a microscope. The microorganisms…

Q: True or false: Solid objects are made of molecules that are moving

A: Within the human body different macromolecules at present that perform specific function in the…

Q: Purines are characterized by triple hydrogen bonds. The statement is    TRUE OR FALSE

A: Nitrogenous bases like purines and pyrimidines are the important molecules in the formation of DNA…

Q: Include the number of the blank in your answer.For example, Blank#1 = 15. Substance c (cal/goC) c…

A: 1 Calorie = 4184 Joule

Q: true or false The bonds linking bases and sugars are covalent.

A: Nucleosides are glycosamines. They are composed of a nitrogenous base and a sugar molecule.  The…

Q: s of 13.77 grams. Find t

A: Volume=5.10cm3 Mass=13.77 gram Density= Mass/Volume=13.77/5.10 =2.7g/cm3

Q: A mineral is a naturally occurring solid that is composed of many inorganic materials. Which of the…

A: Features of minerals Naturally occurring substance. Should not be man made Is  Composed of…

Q: physical properties

A: All substances are indicated by their distinctive collection of physical and chemical properties.…

Q: If a substance contains two or more elements of different types, it isconsidereda. a compoundb. a…

A: An "element" is a pure substance that made up of only one type of atom and cannot be broken down by…

Q: A condition in some metals and nonmetals where they can have more than one crystal structure.

A: Above their melting point, the atoms of metals and nonmetals are randomly arranged and are…

Q: Which mineral is a carbonate a compound that contains a -co3 group

A: Carbon dioxide is soluble in water. In a reversible reaction, it makes carbonic acid with water…

Q: Element Characteristics Easy to bend and shape • Good conductor of heat • Good conductor of…

A: The metals are substances that has high conductivity and high electricity.

Q: True or False: Solid water is more dense than Liquid water.

A: Solid water is less dense than liquid water because, when liquid water molecule freeze into solid…

Q: A Base is a measure of the quantity of

A: bases are chemicals which tent to taken protons and gives hydroxyl ions . they are also chemicals…

Q: Which of the following fats has the lowest melting point? O 16:3 A6.9. 12 16:2 A6.9 18: A4 O 18:0…

A: Saturated fatty acids occur in solid state at normal room temperature. Oils are unsaturated fats and…

Q: Substances that cannot be broken down or transformed chemically into other substances are called…

A: Everything around us is made up of matter. The matter is composed of different substances that…

Q: Substances those are partially dissolved in water are commonly known as

A: Molecules that are dissolved in water completely are called polar substances. Polar molecules get…