Key Results: 50 mL Beaker 10 mL Grad Cylinder 50 mL Buret Average volume (unit) 3.886 g

Q: True or False. Acetone and alcohol can be used by the human body as energy sources even though in…

A: Exploring the metabolic processes of the human body raises the subject of the use of acetone and…

Q: Please answer question 1 & 2 in your own words: Question 1: Density has obvious importance when it…

A: Buoyancy is a fundamental concept in physics that relates to the upward force exerted on an object…

Q: Describe the types of energy involved when boiling an egg in a pot of water.

A: Eggs are made up of large number of protein molecules. Now small constituent amino acids are joined…

Q: During a What's the invisible line that separates the Earth into What position is summer the Earth…

A: What position is the Earth at during an equinox? During the equinoxes, solar declination is 0°.…

Q: -xt Nunito Sans BIUA 三 三▼三▼三三 11 7. Complete the table below. Use the information given to find all…

A: pH = - log[H+] pOH = - log[OH-] pH + pOH =14 These formulas are used for filling the above chart.

Q: _Li;SO; > 4.677 kilograms of BF3 makes how many grams of LiF? 3)_BF3 +. _B2(SO3)3 + LiF LIF

A: Given chemical reaction: BF3 + Li2SO3  ---->  B2(SO3)3 + LiF Writing down the balanced chemical…

Q: The mass of magnesium used in this experiment is critical to determining the moles of hydrogen gas…

A: The reaction considered is the formation of H2 gas by the reaction of Mg with HCl. The balanced…

Q: Q1/ Complete the sentences with (much or many). 1. Have you got 2. We don't need 3. Is there 4. I…

A:

Q: A researcher would like to determine whether there is any relationship between students’ grades and…

A: To determine whether students who sit in the front of the classroom have significantly different…

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: You are doing a lab on Charles Law and determining if the law is valid or not. However, you are…

A: Charles' law can be summarized like this: V1T1=V2T2

Q: A) It has a covalent double bond.

A: Iodine is 17th(VIIA)group element• it has 7 valence shell electrons• So required single electron to…

Q: It is a type of mixture with particles evenly scattered in a dispersed medium without settling down

A: Mixture is the  combination of  two substance.  There are  two types- 1) Homogeneous  mixture.  2)…

Q: 17. You have 41 mL L of graduated cylinder, it now reads 77 mL. What is the volume of the pebble?

A: Initial water level=41mL Water level after dropping pebble=77mL

Q: 3. What is parallax and why must it be avoided when measuring liquids with a graduated cylinder and…

A: Please find your solution below : Parallax is the apparent displacement or the difference in…

Q: Which of the following statements concerning the SI system is/are correct? 1. Prefixes are used to…

A: We have to predict the correct statement.

Q: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

A: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

Q: Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get…

A: In chemistry, compounds are classified as solid, liquid, or gas based on their physical and chemical…

Q: The length of a day on Earth is determined by the time required for one complete: O rotation of…

A: To determine : The length of a day on Earth.

Q: None

A: The molarity of dieldrin =0.473mM=0.473× 10−3M (Given)(As we know 1mM=10−3M ) The volume of the…

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: Grading Your final exam score will be posted after I have graded the essay question. The exam score…

A: The false statement are as follows: c) A mixture is 2 or more different pure substances chemically…

Q: Every year Jeff Bezos sells 5 billion dollars worth of Amazon stock to fund his commercial space…

A: 5 billion dollars = 5,000,000,000 dollars I had a job making 250 dollars an hour So, total hours I…

Q: The first box is the key. The second box represents.... 00 00 00 00 00 0 00 OO OO Atom Y: O Atom Z:…

A: Pure substances are those substances which are made up of only one type of elements. These cannot be…

Q: Briefly define the phrase “fit-for-purpose” in relation to analytical chemistry.

A: It is an ideal standard in analytical chemistry to obtain data of suitable quality. Both analysts…

Q: Can you help with # 70.  This is not a graded question as it is a practice question . I am 60 years…

A:

Q: 2. What’s the main purpose of the glass shields on an analytical balance? A. To calibrate the…

A: The main purpose of the glass shields on an analytical balance is to remove the air current so that…

Q: A chemical engineer must report the average volume of a certain pollutant produced by the plants…

A: Given ->Volume of Oglala(V1) = 2.742 LVolume of South fork(V2) = 5.13 LVolume of Macon (V3)= 29.0…

Q: In order for people to survive and grow as individuals, they have to overcome their obstacles and…

A: The given thesis statement is, "In order for people to survive and grow as individuals, they have to…

Q: What is the mass, in g, of 2.67 × 10 nickel (Ni) atoms? Enter your answer in scientific notation. 12…

A: The given data contains, Atoms of nickel = 2.67×1012 Molar mass of Nickel = 58.69 g/mol.

Q: What are the three fundamental laws of chemistry?

A: The laws of chemical combinations are the fundamental laws of chemistry.

Q: Can you please help with number four in the picture.This is not a graded question as it is a…

A: It is given that temperature increases on mixing,  which means that the reaction is exothermic

Q: Is it supposed to be 10^-14 which would equal 13.4 or 10^24 which equals 23.4?

A: Given :  Kw at 50°C = 3.95 × 10-14

Q: Determine mass of cube. Record mass in Lab Data.

A: Based on the picture, we can see that the mass of a cube is 0.92 g. It is assumed here that before…

Q: A mixture of 200.5 g of Cl, and 43.8 g of P reacts completely to form PCl, and PCI,. Find the mass…

A:

Q: SAMPLE OF MATTER Series 7. GASES ет2 Chlorine B02 bromine (vapor over liquid) nitrogen dioxide N₂…

A: Basic unit of -  1. metals and noble gases is atom. 2. gases is molecule 3. Ionic compounds is…

Q: ARE significant ARE significant are NOT significant are ambiguous 1. Zeros at the end of a number…

A: Significant figures are also known as significant digits.Significant figures are digits that show…

Q: The scientific methods is applied to natural phenomena. What is natural phenomena? Give two examples…

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Q: The study of detecting small quantities of substances in samples would most likely be performed by a…

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Q: Chemical properties include (choose the best answer) Melting and boiling point Density O Reactivity…

A: When two or more substance reacts with each other to form a new substance having different…

Q: Assuming equal concentrations, arrange these solutions by pH. Highest pH Lowest pH Answer Bank…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Find the weighted average of these values. Value Weight 5.00 75.0% 6.00 15.0% 7.00 10.0%

A:

Q: CHEMISTRY Calculating Density Density is the compactness of matter. Density describes the quantity…

A:

Q: What observations did Antoine Lavoisier make? What law did he formulate?

A: Antoine Lavoisier make an observation that in a chemical reaction matter is neither created    nor…

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.