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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: Is dissolving chocolate syrup in milk a physical or chemical change
2 answers
Q: Chemical bonds are formed from the attractive force of atoms for electrons. What is the force called
2 answers
Q: Heterogeneous mixtures can be separated by physical means.
2 answers
Q: Can you use flour and water and borax to make slime
1 answer
Q: What is the difference between a solution and a mechanical mixture
4 answers
Q: What is the oxidation number of Ba in Ba2 plus
1 answer
Q: Reaction involving uranium atoms
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Q: Is XeF2 ionic
1 answer
Q: What is calcite on the pH scale
2 answers
Q: What metal is closest to density of gold
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Q: What examples are there for homogeneous solid
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Q: A scientist makes a saturated solution of a substance by dissolving g of the substance in ml of ethanol what is the solubility of the substance in ethanol
1 answer
Q: Is tamari a acid
1 answer
Q: What is a spacecraft fuel tank material made of
1 answer
Q: You are being briefed in a group concerning a complex assignment. You ask for an extension of the deadline (by which the task has to be completed) in front of the rest of the group. The reaction from
2 answers
Q: Describe the factors which affect chemical reaction rates
3 answers
Q: What fast acting compounds attack oxygen-dependent tissues
1 answer
Q: What is the total number of valence electrons in the Lewis structure of PBr4 plus
2 answers
Q: How many lone pairs are there in the S atom in SO2Cl2
2 answers
Q: Which of the following is a chemical change You melt butter You make cookies You make a pitcher of orange juice from concentrate You blow up a balloon
2 answers
Q: Controls have how many are in an experiment
1 answer
Q: 30 g of iron with a specific heat of 0.45 J per g per deg C at 160 deg C is dipped in 40 g of water at 10 C. If water has a specific heat of 4.184 J per g per deg C what is the final temperature
1 answer
Q: What do you call a person who make detergents
1 answer
Q: Kid friendly definition for atom
1 answer
Q: The movement of water molecules from an area of high concentration to low concentration through a selectively permeable membrane is called what
1 answer
Q: What is the second quantum number of a 1s2 electon in phosphorus 1s22s22p63s23p3
1 answer
Q: Name for any substance that speeds up the rate of chemical reaction
2 answers
Q: What would the final freezing point of water be if 3 mol of sugar were added to kg of water (Kf 1.86
1 answer
Q: Convert 350 degrees Fahrenheit to degrees centigrade
2 answers
Q: What kind of bond is N
1 answer
Q: Why is nitrogen oxide colourless and nitrogen di oxide is brown gas
1 answer
Q: Chlorine and fluorine are located in the same group in the periodic table. If the reaction were performed with fluorine instead of chlorine how many moles of H2 would be required to balance the equati
1 answer
Q: Which chemical in your virtual lab is radioactive
1 answer
Q: You eat 180.0 g of glucose. How many grams of oxygen will you have to breathe in
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Q: What happens to atoms in fireworks when they explode
1 answer
Q: The chlorine is an rare element or abundant
1 answer
Q: How does DCPIP work
1 answer
Q: Electronegativity increases when atoms .
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Q: As you move down a group elements have electron shells than those above them.
3 answers
Q: What is the chemical equation for chromium (III) nitrate and sodium phosphate
1 answer
Q: Substances that change color in an acid or base
1 answer
Q: What is one distinguishing characteristic of a myth
3 answers
Q: What is a way to diagram chemical bonds and compounds
1 answer
Q: What do you call someone who works with precious metals and stone
1 answer
Q: Covalent bonds form due to the attraction between .
2 answers
Q: What substances is likely to be the best insulator
1 answer
Q: The first periodic table of elements Mendeleev created contained only 70 elements.ng
1 answer
Q: Can a substance be both acidic and basic at the same time
1 answer
Q: A(n) is formed when two or more elements are joined together.
2 answers
Q: Will a precipitate form between NaCl Na3PO4 and Ba(NO3)2
2 answers
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