Which of the following is NOT TRUE about water? It has a high specific heat. O Ice floats in liquid water. It becomes less dense as it goes from liquid to solid. O It is non- polar.

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: number of molecules in 1.0 micromole of water

A: 1.0 mole of water = 6.02 X 1023 molecules

Q: The number of protons in a neutral (no charge) atom equals the number of O elements. electrons. O…

A: An ion is a an atom or molecule which is charge, either positively or negatively, based on the…

Q: Sodium chloride is dissolved in water to make a _________________________. In here, sodium chloride…

A: Sodium chloride (NaCl) is an ionic compound in which sodium (Na+) and chloride (Cl-) ions are held…

Q: Which of the following is the reason why water freezes?

A: The correct answer is option C. Its temperature is decreased.

Q: Which of the following can be attributed to water’s high specific heat? A- oil and water do not mix…

A: Specific heat definition : Amount of heat required to raise the temperature of 1 gram of a substance…

Q: hen dissolved in water a blank donates H+ and blank  accepts H

A: An acid is compound when mixed in a solution, it releases hydrogen ions (H+). Acid such as HCl is a…

Q: The amount of energy needed to raise one gram of water one degree Celsius is calleda. a calorie. b.…

A: BASIC INFORMATION ABOUT ENERGY CURRENCY OF THE BODY  ATP  It stands for Adenosine Tri - phosphate.…

Q: Water can absorb a large amount of heat without much change in temperature because it has a high…

A: An important property of water is that it is a polar molecule. The hydrogen atoms and the oxygen…

Q: The atomic number of potassium (K) is 19 and the mass number is 39. How many neutrons does potassium…

A: Atomic number is defined as the number of protons in the nucleus of an atom . Mass number is defined…

Q: If burning 1 gram of cornflake (in a calorimeter) caused the temperature of 23.0°C water (100 mL) to…

A: Calorie: The calorie is the energy required to raise the temperature of 1 gram f water by 1°C. Its…

Q: We say that water molecules are because they have a positive and negative end. Elements O a O b Weak…

A: Because of the unequal distribution of electrons among the atoms and the molecule's asymmetrical…

Q: Water resistant temperature change because ____. A) large bodies of water cannot store heat B)…

A: Water is an inorganic chemical substance. It is the main constituent of the hydrosphere of the earth…

Q: The mass number of an atom depends primarily on the number of protons and neutrons. positrons.…

A: An atom is the smallest unit of any matter. It has three subatomic particles; neutrons, protons, and…

Q: The charge____________ of a proton is exactly balanced by thecharge of a (an) ____________.a.…

A: An atom consists of proton, electron and neutron. Proton is positively charged. Electron is…

Q: Hydrogen will react with other atoms to get eight electrons in its outer energy level. True or false

A: hydrogen is an important atom in biology. Many of water's crucial, life-sustaining characteristics…

Q: Water makes up about which percentage of the human body mass? * 20% 40% 60% 80%

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Because water has high specific heat... A. Water can change temperature more quickly than other…

A: Water is an transparent, tasteless, transparent and almost colourless substance which is the main…

Q: A buffer donates OH- ions when conditions become too basic and accepts OH- ions when…

A: Buffer is a solution of a weak acid and its conjugate base or weak base and its conjugate acid used…

Q: In a solution the part of the solution that is doing the dissolving (such as water in our cells and…

A: Every solution has two different parts,  Solute Solvent

Q: what is the basic unit of matter

A: Anything that has mass and is capable of occupying space is considered as matter. Different or…

Q: Why does salt melt ice? O a it lowers the freezing point of water O b it heats up the ice O c it…

A: Normally water freezes at 0°C to form ice.This is the normal freezing point of ice. Upon additon of…

Q: I need help with this asap it’s a question for my biology homework and I have to explain why it’s…

A: Water molecules develop a crystalline structure when it freezes, which is sustained by hydrogen…

Q: Carbon has several isotopes including 12C and 14C. These isotopes differ in the number of: O a.…

A: When two or more atoms of same element have the same atomic number (number of protons or number of…

Q: When someone uses a 10% glucose solution, what is actually in this solution? Fill in the blanks with…

A: The concentration of a solution is a measure of strength of the solution. It is the amount of solute…

Q: Which of the following is the only option that does not have atoms? O carbon dioxide O organic…

A: Atom is the smallest unit of matter that form a chemical element and they are present in every…

Q: As water is chilled, its molecules slow their movement, and H-bonds form and hold water molecules…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Magnesium has an atomic number of 12 and an atomic mass of 24. Which of the following statements is…

A: Magnesium is a chemical element with the symbol Mg and atomic number 12.

Q: Whenever chemical bonds are broken, energy is Whenever chemical bonds form, energy is O required,…

A: Energy is a physical system 's capacity to do the job. The common Energy symbol is upper case letter…

Q: Precipitation is one of the main processes involved in the water cycle. It involves the formation of…

A: Precipitation- Falling of water from the cloud in the form of rain, hail or sleet During formation…

Q: Acids Check any of the commonly encountered solutions below that are acidic. Check All That Apply…

A:

Q: when 3 animo acid molecules are bound together two form a large molecule it requires the

A: In the cell, the DNA is the genetic material that is responsible for maintaining the heredity. DNA…

Q: Notice that the difference between the freezing and boiling point of water is 180 degrees in the…

A: The temperature of a body is measured using different scales such as Celsius,  Fahrenheit and…

Q: So you have a solid substance. So you start to add heat to it. What happens as you start to do this?…

A: There are 3 forms of matter Solid, Liquid and Gas.  when increasing the temperature or giving heat…

Q: Two or more chemical compounds that have the same formula, but have different structures are known…

A: Any substance made up of similar molecules made up of atoms from two or more chemical elements is…

Q: A slice of pizza has 500 kcal. If we could burn the pizza and useall the heat to warm a 50-L…

A: Specific heat is a physical property of substance. It is the amount of heat needed per unit mass to…

Q: The number of protons in a neutral (no charge) atom equals the number of ions. isotopes. neutrons…

A: An ion is a an atom or molecule which is charge, either positively or negatively, based on the…

Q: Which of the following terms describes when weak forces are broken, drastically changing the shape…

A: Proteins are biomacromolecules which play very important role in maintaining most of the cell…

Q: A sunburn is a familiar example of the effect of ionizing radiation, like ultraviolet light, where…

A: The "flow of energy" in the ecosystem is one of the most important aspects of the survival of such a…

Q: Together, just four elements make up more than 95percent of the body’s mass. These include…

A: BASIC INFORMATION The proteins formed in our body is made up of chains of amino acids which has the…

Q: Lemon juice has a pH around 2.5. Milk has a pH around 6.5-7. Which of the following statements about…

A: A universal indicator is a mixture of different indicators or dyes which has many different colors…

Q: What is the quality of water that our bodies use to cool us down during sweating? O cohesion high…

A: Water is a Solvent which is required by all the organism to live in . It is formed by combination of…

Q: is a property of water characterized as a resistance to flow and results in liquids having varying…

A: Correct answer is option d.

Q: This atom (group) is removed and converted to an ammonium ion, which ultimately is excreted from the…

A: The organs involved in the human excretory system make it easier to remove nitrogenous waste…

Q: Sodium and Chloride make salt by forming bonds. These weak bonds are easily broken by the chemical…

A:

Q: 11

A: Ans- B

Q: Marble is composed largely of calcium carbonate (CaCO3). Spilling tomato juice on a slab of marble…

A: Etching is a process which happens due to chemical reaction between two species. The surface of one…

Q: Which of the following is most likely to be found evenly distributed in water in a homogeneous…

A: A homogenous mixture has a uniform composition. The salt water is considered a homogenous mixture.…

Q: The acidity of our skin (pH~4.5-5.5) helps maintaining the skin's cells and prevents the growth of…

A: Since we only answer 1 question in case of multiple questions, we’ll answer the first question as…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.