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  • Waiting for answer What is an animal that eats other animals?

    An animal that eats other animals is a carnivore. The animal is also called a heterotroph. This means that it eats meat. Additionally, the animal is a hetrotroph because it does not...

  • Waiting for answer What type of mixture can be separated by sublimation ?

    Sublimation can be used to separate a mixture of solids in which one solid sublimes and the others do not. Sublimation is the process in which a heated solid goes directly into the gas phase without passing through the liquid phase. You can use sublimation to separate a mixture of solids, one of w...

  • Waiting for answer Why does and electron have negative charge and proton have p...

    It's really a matter of naming. When electricity was first discovered, they named the current going from the positive pole (e.g. of a battery) to the negative pole, without understanding what current really was. Later, when the electron was identified, and people realised, that current was really...

  • Waiting for answer What compound makes up 60 percent of your body?

    Water, ##"H"_2"O"##. The compound that makes 60% of our body is ##"H"_2"O"##, which is commonly known as water. A water molecule contains one oxygen atom and two hydrogen atoms, he...

  • Waiting for answer A volume of saline solution weighed 25.6 g at 4 degrees C. A...

    The of the saline solution is ##"1.04g/mL"##. ##"density"## = ##"mass"/"volume"## Pure water is at its most dense at ##"4"^("o")"C"##, which is ##"1.000g/mL"##, which is equal to ##"1.000g/cm"^3"##. At this point, the volume in mL or ##"cm"^3"## is equal to the mass of the water sample. So the vo...

  • Waiting for answer Define solubility and write a note on its relation with temp...

    Solubility refers to the concentration of a solution that is reached at the point where the solution becomes saturated. The solubility of most solid and liquid solutes will increase...

  • Waiting for answer A panda eats about 30 kg of bamboo per day. About how many p...

    2,777.83 pounds First you take 30 kg and multiply that by 7 (7 days in a week) to get how much the panda eats per week, you get 210 kg per week Then you take 210 kg and multiply tha...

  • Waiting for answer How does length of a string affect its frequency? Thanks

    All else being equal, the shorter the string, the higher the frequency. When a string is plucked, it starts vibrating. The speed with which it vibrates, depends on the mass of the string (the higher the mass, the slower it will move), the tension (more tension, faster), and on the length of the...

  • Waiting for answer What is an isotonic solution?

    An isotonic solution refers to two solutions having the same osmotic pressure across a semipermeable membrane. This state allows for the free movement of water across the membrane w...

  • Waiting for answer How do you convert 0.75 as a fraction?

    ##75/100## There are a few ways to visualise this but I will chose what I think is the simplest If you know decimal places you can determine what value should be in the denominator...

  • Waiting for answer Why is ether used as the solvent during Grignard reactions?

    Ether is used as a solvent because it is aprotic and can solvate the magnesium ion. A Grignard reaction involves the reaction of an alkyl (or aryl halide) with magnesium metal to fo...

  • Waiting for answer If one mile equals 5,200 feet, how many feet are in 7 miles?...

    36400 feet 7 x 5200 = 36400

  • Waiting for answer The density of balsa wood is about ##170## ##kg####/####m^3#...

    ##"0.17 g/cm"^3## You need to use two conversion factors , one to take you from kilograms to grams and one to take you from cubic meters to cubic centimeters. So, grab a metric pre...

  • Waiting for answer Is a parallel circuit better than a series circuit?

    It would be a little bit simplistic to say that series or parallel configurations of components are universally better. It depends what you want to do in the context of the circuit. One advantage of a parallel circuit is that you can disconnect one component in the circuit without disconnecting the...

  • Waiting for answer What is the measure of an exterior angle of a dodecagon?

    ##30˚## For a regular ##n##-gon, the measure of an exterior angle is ##(360˚)/n##. Since a dodecagon has ##12## sides, an exterior angles is ##(360˚)/12=30˚##.

  • Waiting for answer ##/_1## and ##/_2## are supplementary angles. ##m/_1## is ##...

    First, we should define supplementary angles. Supplementary angles are angles that add up to 180 degrees. Since 1 and 2 are supplementary and we know their values, we just set them equal to 180 degrees ##(4y + 7) + (9y + 4) = 180## Now just solve for one variable ##13y + 11 = 180## ##13y = 16...

  • Waiting for answer Why is diffraction grating more accurate than double slits t...

    When doing lab experiments, the more data you have, the more accurate your results will be. Often when scientists are trying to measure something, they will repeat an experiment over and over in order to improve their results. In the case of light, using a diffraction grating is like using a whole...

  • Waiting for answer The median is called a resistant measure, whereas the mean i...

    Resistant in this case means it can withstand extreme values. Example: Imagine a group of 101 people who have an average (= mean ) of $1000 in the bank. It also happens that the middle man (after sorting on bank balance) also has $1000 in the bank. This median means, that 50(%) have less and 50...

  • Waiting for answer The probability of drawing a green candy from a jar of 20 ca...

    ##10## yellow candies should be added to the jar in order to reduce the probability to ##1/6##. As the probability of drawing a green candy from a jar of ##20## candies is ##1/4##,...

  • Waiting for answer How long is an eon in years?

    Eon has a number of meanings. In Astronomy, an eon refers to 1 billion (##10^9##) years. But it also refers to a very long, unspecified period of time, or specific geologic stages of ....

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