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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: Materials have unique properties because each one is made up of different kinds of which particle
2 answers
Q: To be classified or maintained as classified information must meet all of the following criteria
2 answers
Q: The flame in a gas fired furnace is burning with heavy yellow tips. what is the problem
1 answer
Q: The mass number of a nucleus decreases during which nuclear reactions
1 answer
Q: Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time
1 answer
Q: What is the role of phytoplankton in the oxygen cycle
1 answer
Q: Human blood has an approximate pH of 7.3. Which substance is more basic than human blood
8 answers
Q: Iodine dissolve readily in tetrachloromethane
2 answers
Q: Is nitrogen tribromide ionic or covalent
1 answer
Q: According to Dalton if 2 grams of element X combine with 4 grams of element Y to form compound XY how many grams of element X would combine with 28 grams of element Y to form the same compound
4 answers
Q: Chemical energy in fossil fuel is most often released by what process
1 answer
Q: What color tube is a bmp
1 answer
Q: How many electrons are there in 0-2
2 answers
Q: Most metals have high melting points. Which type of bonding accounts for this property
2 answers
Q: What is a chemical equation that includes the enthalpy change
1 answer
Q: Can you use chlorine to clean concrete pavers
1 answer
Q: What happen when ammonium sulfate and calcium hydroxide are mixed together in a moist soil
1 answer
Q: What word is used when something doesnt corrode in air or water
4 answers
Q: The specific gravity of a product can be found in the MSDS. How do you know if the product will float in water
2 answers
Q: What is the pH of the weakest acid listed in figure 2-5
1 answer
Q: What organelle converts sunlight to chemical energy
1 answer
Q: Noun form of vaporise
2 answers
Q: What is the amount of energy required to raise the temperature of one gram of water by one degree celsius
7 answers
Q: Gases have a tendency to expand. what's the best synonym for expand
2 answers
Q: Is water vapor matter
2 answers
Q: Does SO3 have ionic bonds
1 answer
Q: Is compound HBro iconic
1 answer
Q: Is HBro ionic or covalent
1 answer
Q: In what compounds is copper commonly found in
1 answer
Q: What is the freezing point of 25.5 C7H11NO7S in 1.00 x 10 2g H2O
3 answers
Q: Where is oxygen transferred into the blood
1 answer
Q: How many atoms are in calcium hydroxide Ca(OH)2
2 answers
Q: The terms base and alkaline refer to solutions that
2 answers
Q: Luciferin is a molecule that when broken down in fireflies produces heat and light. The rate at which luciferin is broken down in cells is controlled by
1 answer
Q: Which gas contains the same number of molecules as 9 g of water
6 answers
Q: Gallium uses in everyday life
1 answer
Q: Modern antiquated weak
2 answers
Q: Why are biological and chemical a problem in contaminants water
1 answer
Q: Chemical symbol for dilute sulphuric acid
2 answers
Q: What only metal is liquid at room temp
9 answers
Q: Two chemical are mixed together and a gas is produce is it chemical or physical
2 answers
Q: Maria and rsquos father started a fire in the fireplace. He crumpled some paper lit a match and soon the logs in the fireplace were burning. In this case the stored chemical energy in the logs was cha
1 answer
Q: A student draws a picture of the products and reactants of a chemical reaction. What if anything is wrong with the drawing
1 answer
Q: What is dodecane a compound or element or mixture
1 answer
Q: Carbon dioxide is a molecule made up of a single carbon atom double bonded to two oxygen atoms. The electrons are shared equally between the carbon and the two oxygen atoms. What type of bonding does
2 answers
Q: Does nobelium have luster
1 answer
Q: Describe an example of cohesion and adhesion that you might observe during your daily life
2 answers
Q: Does yellow absorb green and red
2 answers
Q: The known laws of chemistry and physics can explain the origin of matter.
2 answers
Q: What kind of reaction is Zn(C2H3O2)2(aq) plus Na2S(aq) -- and gt ZnS(s) plus 2NaC2H3O2(aq
2 answers
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