What is the temperature change of water in Celcius?

Q: List the names of the various changes of state for a pure substance?

A: Pure substances in chemistry are those that consist of only one kind of particles. It can be further…

Q: Write the balanced equation with the phases for the following reaction: Sodium nitrate crystals and…

A: Following balanced equation is given by:

Q: Describe the characteristic movement of the particles of solid, liquid and gas and arranged them in…

A:

Q: What is a solid dispersed in either a solid or liquid?

A: Solid dispersed in either a solid or liquid is called:

Q: Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on…

A: The freezing point depression is the one that results in lowering of freezing point of the pure…

Q: How do you know a physical change has occurred when evaporating water produces gaseous water? A A…

A: Physical change : Here, no permanent change occurs. This means no new compound is generated. Here,…

Q: how would you seperate a homogeneous solution of table salt and water into its components?

A: Evaporation: It is the process, which involves transformation of liquid water to water vapour.

Q: Describe how a homogeneous mixture differs from a heterogeneous mixture.

A: The homogenous mixture is a mixture which has only one phase(means of homo) is present or there can…

Q: classify to be solid, liquid or gas     Particles are close together but are not held rigidly…

A: To identify whether the given statement represents solid, liquid or gas.

Q: When measuring water or water-based liquids in a graduated cylinder or other liquid measuring…

A: This due to the surface tension, cohesive force and adhesive force. Surface tension is the tendency…

Q: A chemical change

A: Chemical changes occurs when a substance reacts with another substance which results in the…

Q: a) Which of the following is the lowest temperature? a) 42 C b) 318 K c) 57 F d) all these…

A: The solution requires unit and dimensional analysis .

Q: A student doing the distillation performed in this experiment notices that, while the liquid in the…

A: As per the question asks that boiling temperature is 53 degree Celsius. Thus distillation occurs at…

Q: Is a change in phase a physical change or a chemical change? Explain.

A: A physical change is a reversible change whereas chemical changes are generally irreversible. No new…

Q: Describe the energy changes that accompany changes of state

A: Transferring energy to or from a substance can change its state.

Q: Question 3: Heat Capacity and Latent Heats a. Revolutionary War soldiers made their own musket balls…

A: Given :-   Mass of Lead, Pb= m = 21 g  Initial temperature of Pb = Ti = 25 °C  Final temperature of…

Q: Name of the liquid having solid , gas , liquid at same temperature

A:

Q: At the pool supply store when you buy chlorine it is like tablets/or pebbles you mix with the pool…

A: Chlorine is the main chemical which is used in swimming pools for sterilizing the water and  keep it…

Q: Describe the properties of the solid,liquid, and gaseous states.

A: Solids, liquids and the gaseous states are the types of matter, which surrounds us. Properties of…

Q: Define the phases of matter and phase change?

A: The state of matter that is uniform throughout in physical state and chemical composition is known…

Q: DU SH MOOg piHos e se Sues 120 90 60 30 Time (minutes) What is the melting point of this substance?…

A:

Q: What happens to ice when sugar and ice are added, respectively?

A: Here we will apply the colligative properties of solute in a solvent.

Q: How are the molecules of solid, liquid and gas arranged?

A: Solid, liquid and gas are made up of microscopic constituent units called as particle or atoms.…

Q: 18. How many elements are liquid at room temperature? Name them.

A: The elements which are liquid - Rubidium, Francium, Gallium, Mercury, Bromine.  But we know room…

Q: Air is a mixture of many gases, primarily nitrogen, oxygen, and argon. Could distillation be used to…

A: Air is a mixture of many gases, primarily nitrogen, oxygen, and argon. Could distillation be used to…

Q: Give at least one physical changes that are obviously accompanied by energy change.

A: The physical changes are the changes in which a substance does not change the identity of the…

Q: Direction: Recall the properties and behavior of the three states of matter by answering the…

A:

Q: A 788g sample of water at boiling point 100  Celsius is boiled completely. How much energy was…

A: Latent heat of vapourisation  It is defined as physical property of substance to change one mole of…

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time…

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not…

Q: Q2. Explain the following changes in states of matter. Write two examples for each. (a) Boiling (b)…

A: States of matter

Q: The conversion from solid to liquid is generally (endothermic, exothermic, varies) and is called .…

A:

Q: is sugar water considered to be a heterogenous mixture and if so why

A: A homogeneous mixture is the one in which composition of molecules is uniform throughout the…

Q: If thermal energy is added to a liquid, the following changes occurs.

A: When there is a change in the thermal energy of a system, the state of the system will be altered.…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.