Use the following diagram for questions 8 and 9

Q: thickness of aluminum foil mass of aluminium foil 0.405 g length of aluminum foil 9.5 cm width of…

A: Given data, Length of aluminium foil= 9.5 cm  width of aluminium foil = 9.6 cm  and mass of…

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: Before heating 4 qt. saucepan 8 qt. stockpot 24.5 °C Temp. 24.5 °C Temp. After heating for 5 minutes…

A: Water has specific heat constant of 4.184 J per g per oC which means that 4.184 J of energy is…

Q: Compression is

A: Compression is when volume is decreased. In C and D option expansion takes place so they are wrong

Q: Which is more "correct", a theory or law?

A: Given statement is :  Which is more "correct", a theory or law?

Q: Which of the following is not a physical change? physical state color boiling point bleaching…

A: Physical change - A physical change is a change which affects the form of the chemical substance…

Q: Table salt is soluble in water. O True O False

A: The above statement is true. Sodium chloride ( NaCl)  is known as table salt.Table salt, or sodium…

Q: An automobile gasoline tank holds 41 kg of gasoline. When the gasoline burns, 144 kg of oxygen is…

A: According to the law of mass of conservation, the mass of compound can neither be created nor…

Q: 425 Time Series in the North Pacific 8.30 Mauna Loa Atmospheric CO2 (ppm) ALOHA seawater PCO2 insitu…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: what's the difference between natural law and a theory?

A: The difference between the natural law and a theory with aspects to chemistry is explained in next…

Q: Four marbles have the same volume but are made of different metals. The density of each metal is…

A: The heavy or light nature of a substance depends on its density.  As, Density= Mass/ Volume  So , if…

Q: Food safety guidelines recommend that a beef rib roast (bone-in) should cook for 23.0 minutes per…

A: beef rib roast (bone-in) should cook for 23.0 minutes per pound based on a 325 °F oven setting…

Q: Please explain if the following situation describes a chemical or physical change. Then, nln ploase…

A: A physical change involves only change of physical forms. It doesn't involve any changes in…

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 220 C.…

A: Given : 5 g of Calcium chloride i.e CaCl2 is dissolved in 15 g of water at 22 oC.

Q: Food quality can be measured by both subjective and non-subjective aspects. Describe the…

A: Answer. Food evaluation entails the use of instruments as well as physical and chemical procedures…

Q: A student walks over to the balance area with an Erlenmeyer flask in their hand. Before reaching the…

A: Erlenmeyer flask is a conical flask used for performing titrations in the laboratory.

Q: Classify each statement as an observation, a law, or a theory. Chlorine is a highly reactive gas.

A: A series of similar respective observations leads to the development of a scientific law. A theory…

Q: What does the term "inversely proportional" mean?

A: There are two type of relation, directly proportional or inversely proportional.

Q: Which of the statements below are true of the substance represented in the diagram?

A: Among solid, liquid, and gas, the arrangement of atoms are different. The particles in a solid are…

Q: Write the following metals using Roman numeral notation. Then, explain why the Roman numeral differs…

A:

Q: Which physical property cannot be used for measuring temperature? Color, tensile strength, volume of…

A: Hence, the correct answer is colour and tensile strength.

Q: Determine the velocity of an electron that has 3.41 x 10-21 joules of kinetic energy. The mass of an…

A: Answer:Kinetic energy of a particle is:Here:

Q: What is 1.3 x 0.8

A:

Q: Explain the difference between a law and a theory?

A: Various ideas are formulated by the scientists and some are derived experimentally using various…

Q: What type of change in matter is characterized as having a new substance formed in the process?

A: Given  New substance is formed in the process  Type of Change = ?

Q: What is 393.83 kJ/mol rounded to three significant figures?

A: Based on the significant figures rule, the number to be rounded off is followed by digit zero or…

Q: The mass of the solution totals 20 grams.   C. The temperature of the solution is 350 C.   D.

A: Correct option is C. The temperature of the solution is 35 degreeC. These is due to when calcium…

Q: In essay form asnwer the question As a college student why is it important to study general…

A: It is important to study general chemistry.

Q: An electric current of 52.0 mA flows for 6,0 seconds. Calculate the amount of electric charge…

A:

Q: 1. How many significant figures are in the following measurements? 23 seconds 4.12 grams 202 liters…

A: All non zero digits and zeros between non zero digits are considered significant figures.

Q: Hydrobromic acid reacts with sodium hydroxide.  What is the sum of the coefficients for the…

A:

Q: Part 4 Solve for the wavelength in meters given a frequency of 101.1 M

A:

Q: Are students allowed to place a hot crucible on the balance? (Choose all correct answers) Yes. Hot…

A: The concept behind the answer is that weighing hot objects on a balance can lead to inaccurate…

Q: Part C Convert 99.9 °F temperature to the equivalent reading on the Celsius scale. Tc °C %3D

A:

Q: A sample of butane gas was completely combusted in oxygen to produce energy. If 1.35 x 1024…

A:

Q: What is the molar mass of alanine, C3H7NO2? • Write your answer using ONE decimal place, even if…

A: Given, Molar mass of Alanine, C3H7NO2 = ? Note:  Atomic mass of C = 12.01 g/mol Atomic mass of H =…

Q: Draw the structures for the following haloalkanes. a. 3-bromo-2-methylpentane b.…

A: Since you have posted multiple questions we per guidelines we can solve only one per session . If…

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.