Master Chemistry with Fun Quizzes & Brain Teasers!

Georgia discovered a piece of metal. She measured its mass as 14 grams and its volume as 2 cm3. Georgia then compared the metal she found with the metals in the table below. DENSITY OF METALSWhich type of metal did Georgia most likely find?A.Gold B.Lead C.Silver D.Zinc
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I need help pls brainless if right
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If a substance has a density GREATERthan the liquid it's in, then it will
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What is the GCF of 18 and 30
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Which types of reactions would result in a color change?
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please answer these questions properly. I will mark brainiest for the proper answer and pleaaaaaaaaaaaase answer if you know the answer only. if u don't know the answer, leave it please. instead of writing the answer as "sorry I did not understand :)
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help please, thank you !!
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PLES help me for brainless
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. What is the independent variable? (what scientist changes or makes different)Cory wants to see which cup will keep his coffee hottest. He usually drinks coffee out of a Styrofoam cup but decides to compare it to 3 different types of cups. Cory puts 250 ml of his favorite coffee at 95 degrees Celsius into a Styrofoam cup, a plastic cup, a glass cup, and a paper cup. He measures the temperature change of the coffee after 10 minutes.
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Elements in columns with the same number of valence electrons are in the same___
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What compound/element is this? (Easy)
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A cell must work to maintain a stable internal environment. It is also important for the environment around the cell to be stable. What reasoning explains what happens when the concentration of water inside a cell is lower than the concentration of water outside the cell?The cell loses nutrients.The cell splits and creates two new cells.The cell gains too many lipids and carbohydrates.The cell either loses water and dries up or gains too much water and bursts.(science 7th grade)
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HURRY !The number of electrons in an atom decreases as you move from left to right in the periodic table.Please select the best answer from the choices providedT or F
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Which types of reactions would result in the formation of precipitate?
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A 10.0 cm 3sample of copper has a mass of 89.6 g. What is the density of copper?
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consider an iron cube and an aluminun cube. If the two cubes were at the same temperature, how would the average kinetic energy of the particles in iron compare with the average kinetic energy of the particles in aluminun
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What can you conclude from the fact that scientists continue to update the atomic model?ANew information about atoms continues to be discoveredBOld information about atoms is completely uselessScientists did not have any information about atoms until a few years agoDScientists still have no idea what atoms look like
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What is a model and why do scientist use them?
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Which types of reactions would result in the production of gas?
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Conservation of Mass in Chemical Reactions: 7th grade Science Question: In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must beA. More than 10.0 grams B. Exactly 20.0 grams C. Exactly 10.0 grams D. Less than 10.0 grams
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Why are atoms neutral?A They have neutrons in the nucleusB. They have the same number of protons and electronsThey tend to have 8 valence electronsDNone of the above
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Which element is metal?
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Using the formula M=dx v, Calculate the mass of a liquid with a density of17.5 g/mL and a volume of 7mL.
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oxidation is a example of ?the answer choices are are hereA.a financial property,B.a chemical property,C.cool science stuff,D.a physical property
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