Chemistry

The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?
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Calculate mass of an object if its density is 22.6 g/cm3 and it occupies volume of 5 cm3.plz answer quickly if you know the answer... i will mark you brainliest! :)
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what is the density of an object with a mass of 100 grams and a volume of 50 cm
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1. As an electron in an atom moves from a higher energy state to a lower energy state, the atom(A) becomes a negative ion(C) releases energy(B) becomes a positive ion(D) absorbs energy
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Which of the following statements best defines the Law of Conservation of Mass? Mass cannot be created but it can be destroyed under extreme presuresMass cannot be conserved during a chemcial reaction: a little bit of mass is always lostThe mass cannot be created nor destroyedMass can be created and destroyed
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Which element in period 5 has the largest atomic radil
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Which organism on the geologic time scale are now extict
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what is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons A,22, B.23, C34, D 11
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Match the part of the wave to its description
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1. Explain what the process of respiration is.2. List at least 6 of the organs or structures which exist in therespiratory system.3. When we exercise, why do we breathe harder?
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The amount of kinetic energy an object has depends on which feature of the object?
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Complete the sentence.Atoms form chemical bonds to satisfy the rule and to become
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What is epithelial tissue characterized by?closely packed cellssarcomeresmany cell junctionsan extracellular matrix
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Is the following an element, compound, homogeneous mixture, or heterogeneous mixture?Coca-cola
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According to Bohr, why don't the electrons fly off into space?
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help me please im in 4th grade and online is frustrating
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place the items in order from highest to lowest degree of internal organization. tissueorgan systemorgancellPut them in order please PLEASE
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Which element has four times as many protons in its nucleus than are found in Neon?
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Which sublevel comes after 4d orbital
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What is the main point of mutation ? quick please !!
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PWEASE REVIEW ME AND ME MATES TEEF
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A pizza is an example of a heterogeneous mixture. Explain why it is classified as such?
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What is the freezing point on this graph?
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what is the density of if mass equals 4.98 volume is 5
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