Chemistry

pls help me out!! perform the mathematical operation and report to the appropriate number of significant figures 0.00325136-1.76527
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how many seconds are there in 15 hours show work
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Can someone label these PLEASE !!! HELPPPPPP! DUE TODAYY
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As you go down group one of the periodic table, the reactions become and more
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periodicity in chemical properties is based on atomic structure." explain.
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What is always true about lenses?
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why is xenon monatomic but bromine is diatomic
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The overall shape of a plant cell is most directly related to which of its parts?
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What is important about the properties of a substance that has undergone a chemicalchange?
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A student makes an aqueous solution of sodium hydroxide. Which statement correctly identifies the two ions present in the solute of this mixture?The sodium ion is negative, and the hydroxide ion is positive.The sodium ion is positive, and the hydroxide ion is positive.The sodium ion is positive, and the hydroxide ion is negative.The sodium ion is neutral, and the hydroxide ion is neutral
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1. If the surface area of liquid is large then evaporation will beA. smallB. largeC. moderateD. slow
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If substances B and C are both in the gas phase and are at the same energy level, which of the two substances will need to have more energy transferred out in order to change to the liquid phase? Substance B or Substance C? Explain your answer below.For Science
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How many atoms are present in a 0.600- mole sample of gold?
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What is formed if two or more atoms join together?A. CompoundB. ElectronegativityC. NucleusD. ElementHELP
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Figure 1 Describe how a frog grows. Why do you think the eggs are found in the water? Where do you think fertilization happens?
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How do i find a ionic formula? for example Ca2+ & S2-
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What is the molarity when 500mL H2O is added to 20mL 6.0M HNO3?
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Which of the following outcomes is a benefit of conventional agriculture?
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Define atomic numbers and mass numbers
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How many moles are in 9.12 x 1023 molecules of sugar?
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An aqueous solution has a volume of 2.0 L and contains 36.0g of glucose. If the Molar Mass of glucose is 180g/mol, what is the molarity of the solutionConvert grams of Glucose to moles of Glucose and then solve for Molarityshow all work.
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Observe the following images. Which of them shows a chemical change happening?I is rusting car, II is water boiling, III is cooking eggs and IV is melting ice creamA. IB. I and IIIC. II and IIII D. I, II, and III
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