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Chemistry

Delve into the study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. Chemistry is the central science connecting other scientific disciplines.

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Q: If the atomic weight of nitrogen is 14.01 what is the mass of the nitrogen atoms in one mole of cadmium nitrate Cd(NO3)2
1 answer
Q: Toluene (C7H8) is one of the components of crude oil. Which shows the balanced combustion reaction for toluene
2 answers
Q: While conducting an experiment you remove the stopper from a jar of acid. what should you do with the stopper
1 answer
Q: A student needs to measure 15g of a salt. the salt comes in 500g jars. what should the student do first
2 answers
Q: In the covalnt compound C2H6 the greek prefix used to represent the cation is
1 answer
Q: Cyclohexane (C6H12) is one of the components of crude oil. Which shows the balanced combustion reaction for cyclohexane
3 answers
Q: A thief who has stolen large quantities of uranium-235 may have increased the threat of what
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Q: What is the texture for germanium
1 answer
Q: Test to distinguish between butanal and butanone
2 answers
Q: Which shows the possible products of a single-replacement reaction nickel and zinc chloride chlorine and sodium potassium nitrate and lead iodide
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Q: How much does 1 gallon of glycol weigh
1 answer
Q: Which glassware would be used to make a 1.0 m kcl solution
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Q: What is a unit of energy that can identify the amount of energy released or absorbed by a chemical reaction
1 answer
Q: In figure 19 the endothermic reaction that breaks downs mercury (II) oxide into mercury and oxygen can be classified as a reaction.
1 answer
Q: Where does the energy term appear in the equation for an exothermic reaction
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Q: What is the number of molecules of crystallization water per unit of sodium carbonate
1 answer
Q: Cd2 plus (aq) plus 2Cl-(aq) plus 2Na plus (aq) plus S2-(aq) CdS(s) plus 2Na plus (aq) plus 2Cl-(aq)
2 answers
Q: Given the complete ionic equation Cd2 plus (aq) plus 2Cl-(aq) plus 2Na plus (aq) plus S2-(aq) CdS(s) plus 2Na plus (aq) plus 2Cl-(aq)
2 answers
Q: This growth chemical is commonly used among florists who want their plants to bloom at certain times.
1 answer
Q: A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should she do to correct this situation
1 answer
Q: Using the phase diagram for CO2 what phase is carbon dioxide in at -60C and 15 ATM pressure
3 answers
Q: What is an unknown substance in solution is slippery to touch dissolves easily in water and turns litmus paper blue
1 answer
Q: What is the ratio of ions needed to produce neutral potassium chloride
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Q: A crucible and cover are made of .
2 answers
Q: How many ounces of gold are in a 16-karat gold chain that weighs 2.1 ounce
1 answer
Q: The law of conservation of mass is apply to chemical changes
6 answers
Q: What is the mostWhat is the most available explosive agent available explosive agent
1 answer
Q: Aluminium and iodine compound
1 answer
Q: How many oxygen atoms are in nitrogen monoxide
4 answers
Q: A scientist wonders what would happen if 10 million liters of crude oil were dumped into Lake Michigan. Which of the following is the most ethical reason for running a simulation rather than dumping a
2 answers
Q: What is the chemical formular for anhydrous sodium carbonate
1 answer
Q: What are all the uses for rose water
1 answer
Q: Calcuate the mass of sodium chloride produced if 12.3 g of sodium oxide reacts with an excess of calcium chloride
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Q: Would life be different without silver
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Q: Is K2SO4 soluble or insoluble in water
5 answers
Q: If an electron transfers from one atom to another atom what type of bond will most likely form
1 answer
Q: Is manganese sulfate soluble
4 answers
Q: What is shared metallic bond
1 answer
Q: Is air is a compound a mixture an element or a pure substance
14 answers
Q: The research team has discovered a new method for conducting this complicated chemical analysis. Is it a Fact or Opinion
1 answer
Q: Do temperature affects concentration gradients
1 answer
Q: Write the symbol of the ion with a 1 plus charge atomic number 55 and mass number 133
2 answers
Q: A chemical compound that releases OH into a solution is called a(n)
2 answers
Q: What is ionic compound expected to form between the elements sulfur and barium
1 answer
Q: Oxygen tanks can explode if the gas is ignited why is this
1 answer
Q: Two carbon molecule that combines with a four carbon molecule already in the citric acid cycle to produce citric acid
1 answer
Q: What colour would hydrochloric acid be in a UI
4 answers
Q: What is the oxidation state of NH3
1 answer
Q: What is the oxidation charge of hydrogen
1 answer
Q: What is the characteristics of a parent element
2 answers
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