Answer the following problems by showing your complete solutions and interpretations. Please be guided by the given criteria below. PROBLEMS 3. If a sample known to be about 28, 703 years old has 440g of C-14 atoms, how many grams of C-14 were in the sample when the organism died? 4. Scientists found a fossilized bone from an organism in a deep layer of rock. When they took the bone back to the lab, they realized that the bone had only 12.5% of the total Carbon-14 left. Based on the amount of C-14 left in the bone how old is the bone?

Q: Time (s) (w) (avi 0.950 50 0.459 100 0.302 150 0.225 200 0.180 250 0.149 300 0.128 350 0.112 400…

A: The concentration of reactant v/s time data given is,

Q: 21. What must also be present in the Mix of starch and salt. 22. What can you infer about whethe…

A: 21. A potato battery is an electrochemical battery, in which chemical energy is converted to…

Q: 3.00+ 2.50- 2.00- 1.834 atm 1.50- 1.00- 0.50+ 500 1000 1500 2000 2500 3000 seconds O created Is BF,…

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Q: Coal gasification produces an easily-transportable, clean-burning combination of carbon monoxide and…

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Q: Classify each of the reactions. Pb(NO3)2 + NiCl₂ - PbCl₂ + Ni(NO3)₂ O single replacement combination…

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Q: In an aqueous solution, CIO3", reacts to produce, CIO4 and Cl2(g). A plot of [CIO3] vs. time in…

A:

Q: Iron(III) chloride is reduced by tin(II) chloride. 2FeCl3(aq) + SnCl2(aq) → 2FeCl2(aq) +…

A:

Q: CuO + 1. Reaction 4: a. Color of copper(II) sulfate b. Water solubility of copper(II) sulfate 2.…

A: Copper one of the most well-known metallic chemical elements for heat and electricity conductivity,…

Q: what is the equation for Delta E in chemistry?

A:

Q: type

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A:

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A: A question based on kinetics of reactions in solution that is to be accomplished.

Q: Determine the number of molecules of Cr₂O, that form when 1.34 x 10³ g of oxygen completely reacts…

A: Given a reaction ,  4 Cr (s) + 3 O2 (g) → 2 Cr2O3 (s)  We have to calculate the number molecules of…

Q: rate

A:

Q: Experimental data shows that each of the following redox reactions is second order overall: (1)…

A: The concentrations of the reactants raised to some power which contains certain coefficients with…

Q: Which two types of reactions cannot have oxygen as one of their reactions? Briefly explain.

A: To explain: Reactions that cannot have oxygen as one of their reactants

Q: 60 50 40 kcal/mol 30 20 10 course of rx Activation energy is required to make the reaction occur A.…

A: The minimum energy required to cross the energy barrier is known as activation energy.

Q: 0.30 - 0.25 · 0.214 0.20 + M 0.15 - 0.10 - 0.05 500 1000 1500 2000 2500 3000 seconds created Is Br,…

A: The question is based on the concept of chemical kinetics. We have to calculate different rates…

Q: The details of a chemical reaction between A and B, to produce the product C, is shown below. Use…

A: Here we have to determine which data fit best the question asked like the kinetics of the reaction,…

Q: According to the Arrhenius equation, what does the slope of the line on this graph represent? In(k)…

A: here we are required to slope of the line on the graph represent.

Q: In the following reaction represented by the net ionic equation, the rate of reaction of CN– is…

A:

Q: The thermodynamic driving force AG- A,GⓇ + RT InQ of a reaction for a given composition of the…

A: Standard states are the reference states in thermodynamics that are utilized to know thermodynamic…

Q: 2. The proposed steps for a catalysed reaction between Ce+ and TIt are represented below. * Step 1:…

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Q: 17. Allyson and Cami add 25 mL of 3M hydrochloric acid (HCI) to beakers containing 0 mL, 25 mL, 50…

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Q: lodine is used as a catalyst in the decomposition of hydrogen peroxide. How is the concentration of…

A: Catalyst is a substance which can increase or decrease the rate of reaction without itself consumed…

Q: Which of the following equations shows a correct chemical reaction for the following graph? 50 40 30…

A: From the graph, it is clear that the reactants have an energy of 20 kJ whereas the product has an…

Q: Which reactions have a positive A.Srxn? A(g) + 2B(g) → 2C(g) 2 A(g) + 2 B(g) → 5 C(g) A(s) + B(g)…

A: Entropy is defined as the measurement of randomness or disorder of a system. ∆Srxn= ( Number of…

Q: # moles of c2h2 that will burn in the presence of 1.43 mol o2?

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Q: Please answer Part E

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Q: A 10-mm cube of copper metal is placed in 250 mL of 12 M nitric acid at 25°C and the reaction below…

A: we have to calculate the rate at which H+ ions are consumed in the given reaction

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.