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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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Questions
Q: Why is iron a solvent and carbon a solute
1 answer
Q: Using the particle theory of matter to explain what the difference is between a saturated and an unsaturated solution
1 answer
Q: Does baking soda contain metallic and non metallic elements which ones are which
1 answer
Q: Using the terms solute and solvent what is the difference between dilute and a concentrated solution
1 answer
Q: Which process is responsible for returning nitrogen to the air
1 answer
Q: Which chemical change is most likely to involve bubbling or an odor
2 answers
Q: The first stage in the information of coal is
2 answers
Q: What is the pH of dish washing liquid
9 answers
Q: How many atoms are in hs2
3 answers
Q: Do wax sink or float
2 answers
Q: Is MgS insoluble
1 answer
Q: What lld in blood test
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Q: Why do you add distilled water to acid solution
3 answers
Q: An increase in the atomic number the atomic radius moving from left to right across a period.
2 answers
Q: Atoms with many electron shells will let go of their electrons more easily than those with fewer shells.
2 answers
Q: Wax like all matter comes in many phases. What are the three possible phases
2 answers
Q: The periodic table arranges elements by increasing .
2 answers
Q: Pure substances can be separated by physical means. true or false
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Q: How is heat involved in the sublimation of carbon dioxide when it changes from a solid to a gas
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Q: What greenhouse gases contain carbon
1 answer
Q: What ion would the selenium atom shown below bond with to form a stable ionic compound
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Q: Rubidium is in the same group as lithium (Group 1). What is the formula of rubidium nitride
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Q: How is most of the oxygen in earth produced
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Q: Why do lumberjacks wear kevlar
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Q: . Hydrogen bonds and van der Waals forces are types of
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Q: Distilled water is about the only completely neutral solution. What is its pH
3 answers
Q: Smell of chlorine gas
1 answer
Q: A is a device that produces electricity by converting chemical energy into electrical energy
1 answer
Q: A hydrogen fuel cell is more efficient than a combustion reaction because very little of the released energy is released as . When used at home a fuel cell eliminates the need for because the cell is
1 answer
Q: What is the least expensive metal
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Q: A solution of NaOH contains 20g of this compound in 2dm3 of this solution . What is molarity of this solution
4 answers
Q: Lead ii acetate and copper ii sulfate balanced equation
2 answers
Q: What is a simple chemical test to differentiate 2-propanol from acetone
2 answers
Q: The type of bond that will form between this pair of elements Si plus S
1 answer
Q: Using the particle theory of matter what is the difference between a pure substance and a mixture
1 answer
Q: What is the pH level of Oreo's
1 answer
Q: Inferring what could you do to determine whether the gas produced as a result of these reactions is hydrogen
1 answer
Q: What would happen if you forgot to put butter in the baking mixture for buns
1 answer
Q: What color tube do you use to draw Protein electrophoresis
1 answer
Q: What does orange juice do to vinegar
1 answer
Q: Why is the electron transfer in an ionic bond never complete
1 answer
Q: How is the carbon cycle and example of the law of conservation of mass
2 answers
Q: Aluminum metal and sulfuric acid yield aqueous aluminum sulfate and hydrogen gas
1 answer
Q: The interaction of which two systems provides the molecules needed for the metabolic activity that takes place at ribosomes
1 answer
Q: Is potassium a cation or anion
7 answers
Q: What is the ion symbol for bromine
2 answers
Q: Test in which anticoagulant is added to venous blood sample and the distance cells fall in the tube over time is determind
1 answer
Q: Elements used in radioactive dating
1 answer
Q: Is heptane soluble in water and why
8 answers
Q: How much kg is a pallet of sugar
1 answer
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