What would you expect to observe about your anhydrous copper(II) sulfate on a hot, humid day? it will weigh more, absorb water it will weigh more, lose water it will weigh less, absorb water it will not change in mass

Q: Calcium chloride is 36.11% calcium. How many grams of calcium are present in 2.55 x 103 g of calcium…

A: The mass percent of the calcium in calcium chloride is = 36.11 % The mass of calcium chloride is =…

Q: P.S. 6. A miner was digging up some ore (rock). The ore contains 84% lead(II) sulfide by mass. How…

A:

Q: the symbol of the halogen with the most electrons Express your answer as a chemical symbol. ΑΣφ ?

A:

Q: You have a super powerful microscope in your lab!  You are able to zoom in on your sodium phosphate…

A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

Q: lithium carbonate contains 18.8 lithium and is used in the treatment of mental illnesses such as…

A: The percent mass composition is also known as the mass percent also called as the percent by weight.…

Q: Which of the following substances always has the same proportion (i.e. a fixed ratio) of its…

A: Proportion can be fixed or be varied in various substances.

Q: why is the arrangement of the constituent atoms or molecules more important in determining the…

A: Three state of matter solid , liquid and gas. The arrangement of atoms or molecules in the lattice…

Q: Why is it important to be aware of the ingredients of the food you eat? Is fish good for your…

A: To grasp: Knowledge of foods we eat and characteristics of elements present in it

Q: How many grams of Pb2+ are presented in 2.65 grams of lead (II) nitrate?  How many grams of lead…

A: a) Pb2+ are presented in 2.65 grams of lead (II) nitrate = 1.66 gram b) grams of lead (II) nitrate…

Q: At first, it seemed like the poisoned Russian agent might have ingested thallium in the form of…

A: the minimum amount of thallium to kill an average adult= 8*102 mg concentration= 0.45m conc = no of…

Q: Let's start by finding the location on the periodic table for the atoms for substances that conduct…

A: In general ionic compounds formed between metal and non metal conducts electricity when dissolved in…

Q: hydrochloric acid + magnesium → hydrogen gas + magnesium chloride List two physical / chemical…

A: The question is based on the concept of chemical reactions. we have to write physical and chemical…

Q: (BASIC QUESTIONS) Choose or tick the phase of matter that is being described CHOICES: GAS LIQUID…

A: Matter is divided into three different category named as solid, gas and liquids depending on the…

Q: How many water molecules are in 6.00 raindrops? Assume that there are 20.0 raindrops in 1.00 mL of…

A: Density is defined as: It is the ratio of mass per unit volume 1 mole of any chemical species…

Q: What is the relationship between calculating the amount of iron in a vitamin pill and physical…

A: The analysis of present iron in a supplement tablet can be done by a redox titration reaction. Iron…

Q: There are two gas compounds that are made out of element  A and B. This is the mass percentage of…

A: Given: Mass percentage: Compound 1: 30.43% A, 69.57% B Compound 2: 63.64% A, 36.36% B

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A:

Q: Tartaric acid is the white, powdery substance that coats sour candies such as Sour Patch Kids.…

A: To solve this problem first we find the mass of C , H and O  Then the number of mole of each to get…

Q: Suppose you have a bucket of sand containing 1.5 billion grains of sand ( 1.5×109 grains). Most of…

A: Total number of grains = 1.5 ×109 grains Concentration of brown sand is = 4.0 %  The number of brown…

Q: 1. A mixture (shown below) contains the following components: (1) salt, (2) water, and (3) gasoline.…

A: We are given a mixture of three components i.e salt + water + gasoline.

Q: d) Which of the following substances can be considered chemically pure? • Brass ● ● Seawater Air…

A: Given 5 substances • Brass , • Seawater ,  • Air , • Apple juice  ,    • A bar of 24-karat gold We…

Q: What chemical test(s) could you use to distinguish solid barium chloride from solid barium sulfate?

A: The barium Chloride is Soluble in water . The barium sulfate is not Soluble in water . By using the…

Q: Dichlorodifluoromethane (CF2CI2) is an Ozone-depleting substance. It belongs to a class of compounds…

A: Atomic Weight of C = 12.01g/mol Atomic mass of Fluorine = 19.0g/mol Atomic mass of Chlorine =…

Q: Hydrated coppper (II) sulfate is heated, how do you know when the dehydration is complete? Group of…

A:

Q: what is the balanced chemical equation for potassium nitrate mixed with sodium chloride in water?

A: When Potassium nitrate (KNO3) is mixed with Sodium chloride (NaCl) in water, it gives Potassium…

Q: Chemical equation involved: Baking soda + Vinegar Sodium Acetate + Heat Write the correct chemical…

A: We have given that  Chemical equation involved: Baking soda + Vinegar ------> Sodium Acetate +…

Q: A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride: Li + F2 →…

A: Given, A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride:Li +…

Q: Are the physical properties of a substance, such as color, sufficient to identify the substance? Why…

A: Physical property: It is a property of a compound that can be observed or measured without changing…

Q: Natural gas is odorless; to alert people to gas leaks, the gas company inserts an additive that has…

A: The speed of the gas molecule is inversely proportional to the mass of the gas molecule. The…

Q: AATT You are a researcher in a geochemistry laboratory. A colleague brought to you a new mineral…

A: Here we are required to find the mass percent.

Q: Certain antacids are composed of calcium carbonate, CaCO3. How many grams of calcium are present in…

A: The objective of this question is to determine the amount of calcium present in a 400 g bottle of…

Q: If you take one teaspoon of salt and dissolve it in one cup of water, what would that look like?…

A: homogeneous solutions are those solutions which have uniform composition throughout the solutions.

Q: 4. Two engineers are serving as trainees in a laboratory of a pharmaceutical company. One of their…

A: Given: % of C in the sample = 59.0 % % of H in the sample = 5.0 % % of N in the sample = 22.9 % % of…

Q: A large number of atoms of the same kind is

A: Matter is classified into following types  1 Pure  substances        2. Mixture    1. In Pure…

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: ▼ ▼ sulfate Express your answer as an ion. Part C ΑΣΦ A chemical reaction does not occur for this…

A: An atom that has either lost or gained  one or more electrons  so that it gets an electrical…

Q: What is mass in gram of 2.16x10^21 sulfur dioxide molecule

A:

Q: 1) Suggest a mechanism for the following aldol condensation. Show approximate pKa-numbers for the…

A: suggest amechanism :

Q: An ice freezer behind a restaurant has a freon leak, releasing 39.92 g39.92 g of C2H2F3CIC2H2F3Cl…

A:

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.