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  • Waiting for answer What SI units are used to measure density?

    SI units are used to measure density is ##"kg/m"""^3## . = mass / volume Unit of density = unit of mass / unit of volume Unit of density = kg / ##m^3##

  • Waiting for answer What is mechanical advantage and mechanical efficiency??

    For a simple machine mechanical advantage (MA) = ##"load"/"effort"## Efficiency =##"Mechanical advantage"/"Velocity ratio"xx100## Mechanical advantage = ##"Load"/"Effort"## So if w...

  • Waiting for answer Explain why the square root of 89 must be between 9 and 10?

    ##9 sqrt(89) 10## We have ##81 = 9^2 89 10^2 = 100## and ##sqrt(x)## is monotonic for ## 0 x infty ## which means that if ##0 x_1 x_2- sqrt(x_1) sqrt(x_2)## then ##...

  • Waiting for answer What are neurotransmitters?

    they are endogenous chemicals that enable neurotransmission. They are chemicals that enable communication from the brain throughout the body. they are released from one neuron to ano...

  • Waiting for answer What does a cell membrane do for animal cells, and what do t...

    Semi Permeable membrane is semi permeable , means it will allow only few substances to enter or leave the cell . It contains various Receptors for various enzymes also In , since t...

  • Waiting for answer What is the concavity of a linear function?

    The concavity of a linear function is zero. Concavity measures the rate at which the slope of a graph increases ("concave up") or decreases ("concave down"). Since the slope of a linear function is constant, it is neither increasing nor decreasing at all, so its concavity is zero! In terms of der...

  • Waiting for answer What were the terms of the Convention of 1800?

    Agreements that would ensure a peaceful relationship between parties. The Convention of 1800 was to write a treaty between the United States of America and France that would settle t...

  • Waiting for answer What are the parts of the tundra ecosystems?

    The details will depend on which tundra ecosystem one is referring to, but tundra are characterized by cold temperatures, little precipitation, and no trees. Tundras are found in th...

  • Waiting for answer How would you find the percent abundance of 2 isotopes of an...

    See explanation. The average of is calculated by: ##Mass_(avrg.)=sum("isotope mass")*("percent abundance")## For example, suppose we want to find the percent abundance of chlorin...

  • Waiting for answer How do you calculate molality from molarity?

    See explanation. If all you are given is , then you also need to know the of the solution to calculate , m (mol/kg solvent). The easiest way to understand the process is to assu...

  • Waiting for answer Benzene is a hydrocarbon, a compound of carbon and hydrogen...

    The is ##(CH)_n## and the is ##C_6H_6##. Since we know that a hydrocarbon only contains carbon and hydrogen, we can use the percent of hydrogen given to determine how much carbon the compound contains ##%"carbon" = 100%-7.74% = 92.26%## The next step in determining the empirical formula is to d...

  • Waiting for answer What is the area of this regular hexagon?

    The area is approximately ##86.6 "cm"^2##. As this hexagon is regular, you can divide it into ##6## triangles. Please note that all those triangles are isosceles. All angles of the...

  • Waiting for answer When a ball is thrown upwards, what is the relationship betw...

    can neither be created or destroyed. It can only be converted from one form to another. Moreover the mechanical energy (sum of its potential and kinetic energy ) remains same. Now let us analyse the problem in steps. When the ball in on the ground its velocity is zero. and its height above the gro...

  • Waiting for answer What is the main function of carbohydrates, lipids, proteins...

    They function as the main compounds that create the living beings and are present in most of the reactions that take place in them. Carbohydrates are main foods of living beings and...

  • Waiting for answer If first order reaction x tend to y 40% of given sample of c...

    The rate constant ##k## is ##3.39**10^-4## ##s^-1##. We are given that the reaction is a first order reaction, meaning that it can be expressed through the first order reaction integ...

  • Waiting for answer How is Le Chatelier's Principle used in the Haber process?

    It helps us predict the yield of ammonia, when the pressure or the temperature is changed. According to Le Ch√Ętelier's principle, if the conditions of a closed system at equilibrium...

  • Waiting for answer Where is the x-axis and y-axis located?

    In a graph the x-axis is the horizontal line and the y-axis is the vertical one. The x-axis is the horizontal line in a diagram of a coordinate graph, and the y-axis is the vertical...

  • Waiting for answer Where do the light reactions of photosynthesis occur in plan...

    The entire process of can be classified into two parts. 1. Light Reactions 2. Dark Reactions. Light reactions of Photosynthesis takes place in Grana of Chloroplasts.

  • Waiting for answer How many NaOH is required to neutralize 1500##cm^3## of 0.1N...

    The answer is b) 6 g Start by writing the balanced chemical equation for this ##NaOH_((aq)) + HCl_((aq)) - NaCl_((aq)) + H_2O_((l))## Notice that you have a ##1:1## between sod...

  • Waiting for answer What are some examples of producers in nature?

    Examples of producers are , plants, algae, and sunlight.

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