Which of the following is a solid metal under normal conditions: calcium, phosphorus, mercury, or silicon?

Q: How do solids, liquids, and gases differ?

A: Everything that contains specific mass and also occupies certain mass gets considered as "matter".…

Q: If the temperature increases, does the motion of particles increase or decrease?

A: Interpretation - If the temperature increases, then motion of particles increase or decrease is to…

Q: Compare the following: element, a compound, and a mixture.

A: For the given problem we have to differentiate between element , compound and mixture and explain…

Q: Q1. The colour of silver and gold nanoparticles changes according to the particle's ....... OK

A: The color changes depending on the size/shape of the gold nanoparticles.

Q: A blanket of air, made up of gases, liquids, and some solid matter, is called the

A: Atmosphere is the blanket of air around the earth which is beneficial for human being. Gases…

Q: Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure…

A: Given fruit,           Grapefruit

Q: Which physical state is described as having particles closely packed and held rigidly in position?

A: There are three physical states present, namely, solid, liquid and gases. Each state has different…

Q: Which corresponds with the image attached?    A. Liquid B. Crystalline Solid C. Gas D.…

A: In the given diagram, the different Molecules move continuesly and get back to change their initial…

Q: The density of a solid substance is usually greater than its density in a liquid form, yet the…

A: The term density can be defined as the measurement which can be used to compare the amount of the…

Q: Which common inexpensive metal was more valuable than gold in the nineteenth century?

A: Solution:       Aluminum is considered as the third most abundant element in the earth crust after…

Q: Which of the following is a liquid nonmetal under normal conditions: sodium, mercury, -bromine, or…

A: Non-metals have less tendency to lose the electrons. They are highly electronegative in nature and…

Q: Which of the following diagrams represents a homogeneous mixture?

A: Given diagrams: We have to find the diagram that represents a homogeneous mixture.

Q: topic: matter do you think that each sample occupies space? write the reason(s) for each sample…

A: Yes, since the two items listed above is an example is matter which occupies space while the light…

Q: Liquids and gases take the following characteristic(s) of their containers. Which is/are it?…

A: Generally there are three types of substances solid, liquid and gas.

Q: Energy that moves particles of matter is: Temperature

A: Need kinetic energy for particles movement.particles colloid with each other then increase in…

Q: Indicate whether each of the following samples of matter is a heterogeneous, homogeneous mixture,…

A: Heterogeneous mixture - A non-uniform composition throughout the mixture. It also contain two or…

Q: How are the molecules in oxygen gas, the molecules in hydrogen gas, and water molecules similar? How…

A:

Q: When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether…

A: Production of The soap and glycerol from fat on the treatment with NaOH is a chemical change process…

Q: Is stainless steel a heterogeneous or a homogeneous?

A:

Q: Classify each of the following as an element, acompound, a homogeneous mixture, or a…

A: An element contains one kind of atom, while a compound contains two or more kinds of atoms. An…

Q: Provide the elemental symbol of the  following elements: gold, potassium, mercury, iron, platinum,…

A: An elemental symbol is a one or two-letter abbreviation for the element. If the symbol consist of…

Q: In an experiment aqueous solutions of calcium chloride and sodium sulfate are mixed. What type of…

A: Aqueous solutions of calcium chloride and sodium sulfate are mixed.

Q: Suggest how the components of each mixture can be separated. a. Salt and Sulfur b. Copper and Zinc

A: Solution The mixture of salt and sulphur is a mixture of heterogeneous mixture.They can be seperated…

Q: Which of the following is not an example of a homogeneous mixture? Select any that apply: - Sugar…

A: Concept Introduction: Homogeneous mixture: A mixture throughout the solution in which the…

Q: What type of matter is this ?

A: An element is that species that contain atoms of same type. A compound is formed by combination of…

Q: a In which block of the Periodic Table would you find nickel and copper?

A: Atomic number of Nickel = 28 Electronic configuration of Nickel = [Ar] 3d8 4s2 Period Number of…

Q: Two beakers contain clear, colorless liquids. When the contents of the beakers are mixed, a white…

A: This is an example of chemical change.

Q: 5. Hydrogen chloride is decomposed by an electric current to hydrogen (H2) and chlorine (Cl2). Is…

A: The solution is given below -

Q: If limestone is interacted with an acid, it liberates a gas made from: a. water vapor b. methane…

A: Limestone is the common name of the salt CaCO3. It reacts with acid to form corresponding salt along…

Q: Two beakers contain clear colorless liquids, when the contents of the beakers are mixed,a white…

A: Physical change impacts only physical properties such as shape, size, melting point, and boiling…

Q: If salt dissolves in water, is it a chemical or physical change?

A:

Q: Which of the following BEST describes molecules in liquids? A. Can be readily compressed B. Has…

A: Anything that occupies space and has mass is called matter. Now, on the basis of physical state, the…

Q: Which of the following is an element: Brass Zinc Steel             D, Bronze

A: An element is the simplest form of pure substance. On the other hand, a mixture is made up of…

Q: What is the temperature change of water in Celcius?

A: In a calorimeter, water is used since it has high specific heat capacity and retains a high amount…

Q: Water is classified as a(n) a. atom. b. element. c. mineral. d. compound.

A: Is water is atom, element, mineral or compound has to be given.

Q: What are the chemical symbols of the following elements: lithium, sodium, carbon, oxygen, fluorine,…

A: Every element is represented by one letter or two letters from the Latin alphabet. If symbol is of…

Q: In what state of matter is carbon dioxide normally found on earth.

A: Matter is anything and everything that occupies space and whose mass is not zero. Generally…

Q: Type of chemistry

A: In the field of science there are many different types of chemistry. The following page will deal…

Q: Elemental bromine is a dense, dark red, strong-smelling liquid. Are these characteristics of…

A: All the above mentioned properties are physical properties of elemental bromine.

Q: What common state of matter has a definite volume but indefinite shape? liquid

A: Generally there are three states of matter , Solid , liquid and gas

Q: Which of the following is not made of chemicals?

A: a chemicals are compounds or element made up of atoms or molecule so they have both mass and occupy…

Q: description of an element at the particulate level

A: An element is a substance that has only one type of atoms. These atoms are not chemically connected…

Q: what is the current prevailing theory on the most basic unit of matter?

A:

Q: A) gas B) solid C) liquid D) salts E) ice

A:

Q: Which state of matter has a high density and an indefinite shape?

A: High density and an indefinite shape:

Q: 1. In classical Physics and general Chemistry, matter is any substance that has mass and takes up…

A:

Q: which macroscopic characteristics differentiate solid liquid and gas

A: Macroscopic characteristics are those which are visible to the naked eye and not microscopic in…

Q: If iodine melts at 114 degrees C and boils at 184 degrees C, what is its physical state at 120…

A: Given: Melting point of Iodine is 114°C . Boiling point of Iodine is 184°C  To find:  Physical state…