Obtain an ice cube and add salt to it. What happens to the area of ice where the salt is applied? Why is salt applied to icy sidewalks or roads in the winter? What does salt do to the freezing point of water?

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

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

Q: What is electrolyte? If a sport drink contains electrolytes what did the maker of sports drink add…

A: Potassium in sports drinks helps to maintain electrolyte balance and can aid in muscular contraction…

Q: A student is presented with a sample of an unknown substanceand asked to classify the substance as…

A: A molecule is consisting of two or more atoms bound together by chemical bond. All living organism…

Q: . define acid and base and interpret the pH scale;

A: pH is considered as the potential or power of hydrogen ion.

Q: Compare the characteristics of an acid, a base, and a salt.

A: Acid is a chemical compound which is naturally present in fruits, vegetables, and can be derived…

Q: Identify as many materials as you can in the dust. If you cannot identify a particular material,…

A: Dust is made up of fine particles of solid matter. It consists of particles from the atomosphere…

Q: ______ Can Separate Particles and Molecules That Differ in Mass or Density.

A: BASIC INFORMATION MATTER Everything that are present in our surroundings can be regarded as matter.…

Q: The emergent property of water that contributes to surface tension is ?

A: The emergent property of water that contributes to its surface tension is cohesion. When the…

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: Explain the concept of pH, and how the pH of a solution relates to its acidity.

A: The pH of a solution is a proportion of its acidity or alkalinity (base).  This pH test estimates…

Q: Which mineral serves as a cofactor in glucose, fatty acid, and amino acid breakdown during energy…

A: Answer:  Magnesium

Q: Describe the pH scale and how it was derived; define acid, base,and neutral levels.

A: pH is an important quantity that reflects the chemical conditions of a solution. The pH can control…

Q: Convert between mass and moles using the molar mass of a substance.

A: Molarity is defined by a number of moles of a substance in a solution (in litres). Molar mass is…

Q: Buffers are mixtures of a weak acid and a weak base that combine with a strong acid or base to limit…

A: A solution is a homogeneous mixture of two or more things. The minor component of a solution is…

Q: What determines whether a substance is an acid or a base? Brieflyoutline the pH scale.

A: pH is the figure that represents whether the given solution is acidic or alkaline on a logarithmic…

Q: “Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

A: "Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

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: The second part of the question was asking if there would be any other areas in our body that would…

A: The body works in a specific pH. pH in the body of an individual is an essential factor to…

Q: If 65 percent of your body mass is water, determine how many kilograms of water you contain.

A: Water is the main component of the human body and it forms nearly 60% of body mass. Different organs…

Q: What do you mean by ground substance?

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

Q: what are two similarities and differences between sodium and potassium and between sodium and…

A: Sodium and potassium belongs to same group, hence they are very similar in properties. Sodium and…

Q: In your textbook, read about acid precipitation. Refer to the map of the United States and the key.…

A: Acid rain denotes to any kind of precipitation with acidic particles.

Q: Describe how different types of solutes dissolve in water. Explain whata solution is.

A: Water is a universal solvent because of its capability to dissolve many substances. It is due to its…

Q: acid is produced when milk gets sour

A: Milk packed with necessary nutrients like Ca, phosphorus, B vitamins, potassium and vitamin D. Plus,…

Q: Explain why water has a high specific heat. Hint: Think about hydrogen bonds and how temperature…

A: The quantity of energy necessary to raise the temperature of 1 g of any substance by 1oC is called…

Q: describe the unique properties of water

A: Unique properties of water: Water is capable of dissolving a variety of different substances, which…

Q: waters ability to stick to other polar or ionic things is called?

A: Hydrogen bonds are defined as "not true" bonds similar to covalent bonds & ionic bonds. Hydrogen…

Q: Explain what causes ice to float on top of liquid water.

A: The density of the substance is calculated as mass per unit volume. Density= massvolume

Q: In A, describe the movement of water as solute is added to the right side. H,0 Pure water Negative…

A: Osmosis is the diffusion of water from its high concentration to its low concentration through a…

Q: Does a flour dissolves in water

A: A solvent is a compound that dissolves a solution, leading to a solution. A solvent is typically a…

Q: Compare and contrast an acid from a base.

A: Acid and base both are chemical compounds that react to form water and salt by the neutralization…

Q: Highest melting point CH; (CH,)COOH CH;(CH, ),,COOH 12 CH; (CH, ),CH=CH(CH, ),COOH CH;CH, (CH=CHCH,…

A: A fatty acid is one of the most important biomolecules in our system. A fatty acid contains a…

Q: Why is it essential for the body to maintain a normal pH? Explain or expand your answer.

A: The pH of blood ranges from 7.35-7.45 but the pH of other body fluids is different. pH depends on…

Q: efer to the table below: Saponification Number 179 260 193 185 lodine Number 102 10 111 79 Oil…

A: Introduction Iodine number defined as the number of grams of iodine that are consumed by 100 gram…

Q: What is Moderation of Temperature by Water

A: Have you ever tried to cool down hot substances by immersing them into water? It is seen that the…

Q: Give reason why potato cubes when placed in water become firm and increase in size.

A: Osmosis is a process through which the movement of water takes place through a semi-permeable…

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: Which mineral serves as a cofactor in glucose, fatty acid, and amino acid breakdown during energy…

A: Metabolism is the process, during which biomolecules are broken down into smaller units or small…

Q: They counted the number of spatuals of sugar or salt added to the water until no more would…

A: A solution is generated when a solute is dissolved in a solvent. A solvent is a liquid that…

Q: Convert the hydrogen ion concentration (moles per liter) of a solution to a pH value and describe…

A: Suppose a solution has a hydrogen ion concentration of 20 mM. One needs to calculate the pH of the…

Q: Determine the effect of temperature changes on the solubility of a solute in a solution.

A: Temperature affects solubility.

Q: What factors affect the hardness of water? What is the effect of hardness of water to health?

A: The hardness of water: According to the WHO, the hardness of water is the measurement of the…

Q: How might a buffer help maintain homeostasis? Explain your answer.

A: Biological buffers are organic substances that help in maintaining a constant pH over a given range…

Q: Choose the combination of answers that most accurately completes the statement. A chemical with…

A: chemical with sporicidal properties is phenol.

Q: What happens to the area of ice where salt is applied? Why is salt applied to icy sidewalks or roads…

A: The question asks the effect of salt on the area of the ice. The reason for the salt application on…

Q: Which element is a metal? A. C B. Rn C. CI D. Cr

A: The classification of chemicals into different groups and understanding their properties individual…