Master Chemistry with Fun Quizzes & Brain Teasers!

What is the density of an object with a mass of 180 grams and a volume of 45 cm3?Plz answer fast
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Vacuoles are round organelles found in both plant and animal cells. Their primary function is to -produce food and energy for the cell.control the activities of the cell.transport materials between parts of the cell.store water, waste, and nutrients for the cell.
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aAaSaveQuestion 6Plant cells have a strong, rigid outer layer known as the cell wall. The function of the cell wall is to -help the cell maintain its shape under changing water pressure.convert energy from sunlight into chemical energy.regulate the transfer of material into the cell.separate genetic material from the rest of the cell.Next Question
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349+1.10 + 100 =and i have to put it in sig fig?
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The only thing that is not matter is energy.TRUEFALSE
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I need help and 25 points and brainliest
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The atoms of compounds are _____________ combined in some way. Often times they come together to form groups of atoms called molecules.
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How does geothermal energy differ from solar energy? (3 points)Geothermal energy is cooler and denser than solar energy.Geothermal energy comes from the internal heat of Earth.Geothermal energy is transmitted through the atmosphere.Geothermal energy results from radiation of electromagnetic waves
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What is the volume of the water in this graduated cylinder?*
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Question in picture below
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Why do nonmetals tend to gain electrons to form negative ions?A. They have low electronegativities. B. They gain electrons to balance the protons in their nuclei. C. They gain the few electrons they need to form full octets. D. They have fewer protons in their nuclei, so they attract electrons.//APEX\\
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help plzzzzzzzzzzzzzzzzzzzzzzzzzzz
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PLEASE HELP DUE TODAY!!!List the liquid mixtures from most sense to least dense using evidence and reasoning:1) 1/2 cup of water2) 1/2 cup of water + 2 tablespoons of salt3) 1/2 cup of water + 2 tablespoons of sugar4) 1/2 cup of water + 2 tablespoons of flour
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A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and water by filtration or centrifuge. What type of mixture is it?A. colloidB. suspensionC. solution
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The following values are measured in the laboratory: 40.0 g +0.7631g +610.70 g. The correct total recorded (with the correct sig figs) by the labtechnician was*651.5 g651.4631 g651.46 g651 g
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distinguish among a mixture, a solution, and a compound.
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A family tested four different brands of spaghetti sauce to determine which one they preferred and would be the best buy for them. Each sauce was rated in a number of categories, with a rating of 4 being best and 1 worst. The results are shown in the table. According to the data, which statement is true?A) Overall, the family found sauce B the best. B) Overall, the family found sauce C the best. C) It would be reasonable for the family to buy sauce C if cost was a major concern. D) It would be reasonable for the family to buy sauce C if flavor was the major concern,
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Which structure is located at the base of the brain and receives neural signals about smell from the sensory receptors? A. olfactory cilia B. olfactory bulb C. olfactory cortex D. olfactory base
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A person is 1.84 m tall. What is their height in inches , if 1 m = 1.0936 yd and 1 yd = 3 ft?
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again with the chemistry questions all help is appreciated :)
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R is the midpoint of FG.FR = 26 find RG
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Which of the following statements is true about the sense of smell? Men and women smell the same number of odors. The amount of odors one can smell is unknown. Women tend to smell more odors than men. People can smell approximately 100 odors.
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Explain transmethylation reaction of amino acids.
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