What is the mass of 3.30 × 10 ²³atoms of silver, Ag? (Sec. 8.4) (a) 0.549 g (b) 25.8 g (c) 59.1 g (d) 85.7 g (e) 197 g

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

A: Given fruit,           Grapefruit

Q: Which of the following are extrinsic properties? being made of paper O being to the left of a…

A: An extrinsic property is not essential or inherent to the subject that is being characterized.

Q: 11. Pb(NO), # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

A:

Q: To raise the temperature of 75.0 g of a particular metal by 1.50 °C requires 107 calories of heat.…

A: Specific heat: It is defined as the amount of heat required to raise the temperature by 1gm of a…

Q: What is the key difference between an element and a com-pound?

A: The differences between  element and a com-pound are:

Q: Difference between minor and major constituent

A: A question based on solution that is to be accomplished.

Q: is carbon dioxide classified as an element?

A: Given name is Carbon dioxide  We need to explain can cabon dioxide be classified as an element or…

Q: 6. The question is shown in the image attached.

A: Option --C

Q: 17. C,HFCOOH Name of element:

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Arrange the values to the magnitude. Which one is the greatest to the least?

A: Given :- values are :  1.4 × 105  51000  3.5 × 10-2  9.0 × 10-6  7.9 × 10-6  To arrange :- the…

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: The representation of atoms below best represents a mixture of ____ different pure element(s) and…

A: Applying definition of pure substance and compounds we can determine the components in the…

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

A:

Q: I have the chem 101 app and the question is:     An atom of a particular element has a volume of 7.8…

A: The unit of given volume is to be converted from m3 to cubic nanometres (nm3).Volume = 7.8 ×10-31 m3

Q: In a reaction, 34.0g of chromium(III) oxide reacts with 12.1g of aluminum to produce chromium and…

A: 34.0g of chromium(III) oxide 12.1g of aluminum Both of these react to produce 23.3g of chromium and…

Q: Which of the following accurately describes the number of aluminum and oxygen atom A 3 atoms of…

A: Al2O3 is named as Alumina. It is a compound of aluminium.

Q: Elemental fluorine is a non-metallic, yellow, pungent-smelling gas. Are these characteristics of…

A: Elemental fluorine is a non-metallic, yellow, pungent-smelling gas. Whether these characteristics of…

Q: Which is an example of fuel that takes the shape of container and has definite volume?

A: The fuel that takes the shape of container and has definite volume, it should be in liquid phase.

Q: A chemist is trying to identify an unknown metal, and finds that 25.0 cm³ of the substance has a…

A: Given: Volume of the metal, V=25 cm3 Mass of the metal, m=224.43 g Temperature, T=20°C

Q: what is the total mass of metal present in the container

A: For addition, calculate the significant figures of all the numbers. The sum, will have the least…

Q: 3. What is the volume of a aluminum ball at 10°C if its volume at 160°C is 300cm3 ?

A: Case: I (initial)Initial temperature, T1= 10∘CInitial volume,V1= ?Case:ii  (final) Final…

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

A: The solution is given below -

Q: What is a molecular element?

A: A compound refers to the molecule which contains at least two different type of elements bonded…

Q: Which of the following best describes the system depicted in the diagram? Mixture of elements…

A: We have to say about the diagram.

Q: Classify the following molecular diagram:      element            compound            homogeneous…

A: The given terms are explained as follows: element -  represented by single atom compound -…

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: If the same amount of electricity that is used to produce 500g copper metal is used to produce…

A: Number of moles can be determined by dividing the given mass of the atom or molecule by the molar…

Q: A sulfur atom and a sulfur molecule are not identical. What is the difference?

A: Given that the sulfur atom and a sulfur molecule are not identical   Atom is a single entity but…

Q: What is the molecular (formula) mass for ZnSO4 (Zinc sulfate), to three significant digits.

A: What is the molecular (formula) mass for ZnSO4 (Zinc sulfate), to three significant digits.

Q: The mass of a proton is 1.67 times 10-27kg. What is the mass of a proton in gigagrams?

A: The mass of a proton is 1.67 times 10-27kg. This mass of a proton is to be converted into gigagrams.

Q: In your own word, define the following terms:

A: Solutions measured interms of concentration Concentration : no. of moles of solute per unit volume…

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: Each scene below represents a mixture. Describe each one interms of the number(s) of elements and/or…

A:

Q: Discuss one of the Philosophers and his contributions to science history;Give at least 10 sentece

A: We all have learn about one of the greatest and very attractive philosopher and his name was…

Q: A compound is a pure substance whose smallest representative is identified as?

A: Applying definition of compounds.

Q: You're in a diet that calls for eating no more than 1200 Cal/day. What is this energy in joules?

A: The energy form Calories can be converted into energy form of joules.1200 Calories/day means 1200…

Q: pH = 2.52 Express your answer with the appropriate units. HẢ ? [H3O*] = Value Units

A:

Q: PHYSICAL

A: Oxygen is gas and it is a diatomic homonuclear molecule and it is formed from Oxygen element.…

Q: 2-86 When each of the following measurements are length is convert to inches, using a conversion…

A: The conversion factor used in the unit conversion has infinite number of significant digits. In the…

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: soda Choose. salt water Choose. + brass Choose. +

A: In multipart questions, we solve only first three subparts according to the Bartleby guidelines.…

Q: OF2 expressed as an Integer?

A: The number of electron groups can be determined by the summation of bond pair and summation of lone…

Q: Which of the following will be homogeneous mixture?    (A) All of them (B) N2 and Ar (C)…

A:

Q: The symbol of K+ represents one?

A: + sign indicates loss of electrons.

Q: 2. Discuss the effect of temperature to density.

A: The density of a substance is it's mass per unit volume

Q: Physical and Chemical Properties

A: As we know, density, evaporation rate, flash point,pH are physical and chemical properties of…

Q: , which among GaAs, LiBr, C, and Li will be the greatest conductor

A: Substance which has more number of ions have more electrical conductivity.  So, strong electrolytes…

Q: Identify the following statements as true or false.

A: Statement 1- A 2.0 % NaCl solution has a higher vapor pressure than pure water. when a non-volatile…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.