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  • Waiting for answer How do wavelengths define light?

    They define the color of the light. The visible spectrum has wavelength ranging from 400nm to 700nm, with the shorter end corresponding to the violet region and the longer end corres...

  • Waiting for answer What was expected of the colonists through the new Quarterin...

    That British soldiers would be quartered in private homes. The British army was increasing its ranks in Boston but had nowhere to house them. To solve that the Quartering Act was pu...

  • Waiting for answer What is the chemical equation for the reaction of potassium...

    K2O + H2SO4 = K2SO4 + H2O Potassium oxide is strongly alkaline oxide. Sulfuric acid is strong acid. There inter action between these two will form a salt - potassium sulfate and wate...

  • Waiting for answer What is the average of 10, 18, and 23?

    ##(10+18+23)/3=51/3=17## The average (known as the "mean" in some circles) is found by adding up the values, then dividing by the number of values. In this case, it's ##(10+18+23)/3...

  • Waiting for answer How do innate and environmental factors interact?

    “Innate” factors may be considered as the “raw material” of individual possibilities. Environmental factors can be enablers or detractors of the innate factors. This is the "Nurtu...

  • Waiting for answer How do you convert 7.5 x 10^4 j into kilojoules?

    The prefix ##k## (kilo) means 1000. So, just like you convert grams into kilograms by diving by 1000: ##7.5*10^4J=7.5*10000J=75000J## ##75cancel(000)cancelJ*(1kJ)/(1cancel(000)canc...

  • Waiting for answer What is an operon, and how does it regulate gene expression?...

    It's a set of is a set of genes regulated by the same promoter sequence, usually coordinating related cell functions. They are transcribed together and codify a single string of mess...

  • Waiting for answer What is assonance?

    Commonly used in poetry, assonance is used to purposely make repetition of vowel sounds in words that are close to one another.

  • Waiting for answer For the circle ##(x-1)^2 + (y+1)^2 = 20## in the ##xy##-plan...

    (1 ,-1) , ##2sqrt5 , 20pi≈62.83## The of a circle is ##color(red)(|bar(ul(color(white)(a/a)color(black)((x-a)^2+(y-b)^2=r^2)color(white)(a/a)|)))## where (a ,b) are the coords of...

  • Waiting for answer What element has the symbol Ag?

    If you look at , you can find it next to cadmium (##"Cd"##) and palladium (##"Pd"##) in the transition metal section. It's below copper (##"Cu"##) and above gold (##"Au"##). ##"Ag"## stands for argentum in latin, which corresponds with the element silver . Its is ##47##.

  • Waiting for answer What is cytokinesis and when does it occur?

    Cytokinesis is when the cytoplasm divides. Cytokinesis occurs after and in animal cells where the cytoplasm divides. The whole process of mitosis is actually composed of many steps...

  • Waiting for answer What is assimilation?

    Assimilation is interpreting our new experiences in terms of our existing schemas Assimilation and accommodation are complimentary. The two theories were uncovered by psychologist Je...

  • Waiting for answer What is a STANDING WAVE? How is an echo formed?

    Standing wave is phenomenon caused by waves interference. A bunch of waves summed together results on a wave that appears to be static. Echo is the wave reflected due to obstacles on their way. For sound we are only able to notice a echo when the reflected wave takes more than 0.7s to come back, ot...

  • Waiting for answer What is the function of the atrioventricular valves of the h...

    To make sure blood flows in the right direction. The purpose of valves is to prevent back flow of blood. In other words, it ensures that blood flows only in one direction . An atrio...

  • Waiting for answer How do you evaluate ##ln (1/e)##?

    It is ##-1##. We apply the properties of the logarithm: ##ln(1/e)=ln(e^(-1))## the first property is that the exponent "exit" and multiply the log ##ln(e^-1)=-ln(e)## the second...

  • Waiting for answer What is the equation to convert ethanol to propanoic acid ?...

    If we start from ethanol, then we can use ##"PBr"_3## in pyridine to turn ethanol into ethyl bromide, which can then be converted to a Grignard reagent by reacting with magnesium solid in dry ether, followed by a reaction with carbon dioxide. ##\mathbf("PBr"_3)## acts as an electrophile for the al...

  • Waiting for answer Is "is" a verb? If not, what is the verb in this sentence: "...

    Yes. Is is a linking verb. Is is a linking verb. It links or connects the subject "school" to the predicate adjective "small". Note: "Although the school is quite small" is a d...

  • Waiting for answer Chlorofluorocarbons (CFCs) damage the ozone layer. Where do...

    they are mostly coming fro m leakages in refrigerators and aerosols/ They break down at stratosphere and damage ozone layer. Modern refrigerators use harmless refrigerants.

  • Waiting for answer What are the cations and anions for the formula CuBr2?

    Cation = ##Cu^(2+)## Anion = ##Br^-## Bromine is a halogen (group 7A, or Group 17 using IUPAC). Halide ions will have a -1 charge. You can use the charge of the bromide ion to deduce the charge of the copper cation. Since must be electrically neutral, the copper must have a charge of +2 since...

  • Waiting for answer How can I draw all possible stereoisomers for 2-chloro-3-hex...

    Step 1. Draw the bond-line structure for 2-chlorohexan-3-ol. Step 2. Identify the chiral centres. There are two chiral centres: C-2 and C-3. So, there are ##2^2 = 4## stereoisomers. Step 3. Convert the bond-line structure to four wedge-dash structures. The combinations will be WW, WD, DW, DD...

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