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  • Waiting for answer What is Ka in chemistry?

    This is the acid dissociation constant, which quantifies the extent of acid dissociation in a , typically water. An acid, ##HA##, undergoes the following equilibrium in water: ##HA(...

  • Waiting for answer Is division of rational numbers associative?

    No, it is not; for example, ##(1 divide 2) divide 3=1/2 divide 3=1/6##, but ##1 divide (2 divide 3)=1 divide 2/3=3/2##. I hope that this was helpful.

  • Waiting for answer What is the width of a rectangular prism when the surface ar...

    ##4 meters## Given: ##SA=208 m^2## ##L=6m## ##H=8m## Missing: ##W=?## substitute all the given to the formula for surface area of a rectangular prism is ##SA=2(LW+LH+WH)## ##208...

  • Waiting for answer What is the difference between a parody, a spoof, and a sati...

    parody-statement appears to be absurd but contains a deep meaning satire-a device in literature where you criticize men and manners with the ideas of correcting them

  • Waiting for answer Why is smooth muscle called involuntary?

    Smooth muscle is called involuntary because it is innervated by nerves that do not require conscious thought to perform action potentials to move the muscle. For example, you don't have to think about beating your heart, contracting your diaphragm to breathe, or moving food through the GI tract. Th...

  • Waiting for answer How do homeotic genes regulate development in drosophila?

    Homeotic (selector) genes regulate other genes (realisator genes) to make sure the right structures develop in the right place. The challenge in the development of each multicellula...

  • Waiting for answer If the area of a right triangle is 15, what is its perimeter...

    Cant be determined Let the two sides of the right angled triangle have lengths a b. The third side has length =## (a^2 +b^2)^1/2 ##////// use Pythagoras Theorem Perimeter =## a...

  • Waiting for answer How many protons are in the nucleus of an atom of oxygen?

    The tells us how many protons are in the nucleus for any given element. Oxygen is atomic number 8. Therefore, its nucleus contains 8 protons. Protons are positively charged. On...

  • Waiting for answer How is the number of neutrons in an atom calculated?

    It has already been answered. As the person above said, to get the number of neutrons, you have to subtract the by the . ##"Mass number " - " Atomic Number " = " Number of Neutron...

  • Waiting for answer What is the definition of colloquial language?

    Colloquial language is informal, spoken language. It's the way you speak to friends or family members without giving any thought to what you are saying, as opposed to formal, spoken...

  • Waiting for answer 'Atoms of element X have 6 unpaired electrons. What could be...

    Yes, chromium could be one. Right from the start, you can guess that the unknown element must be a d-block element, or a transition metal. That must be the case because in order...

  • Waiting for answer What is the sin of 30 degrees?

    This is one of the basic right-angled triangles. In an equilateral triangle each angle is ##60^o## (and all the sides have equal length) From the image below: we can see that the ##sin(30^o) = 1/2##

  • Waiting for answer What is descent with modification?

    Populations experience random and systematic changes in genetics over multiple generations (decent) that can lead to adaptations to their environment (modifications). Random changes in genetic sequence occur primarily through . Systematic changes in genetic code exist in many forms: natural variati...

  • Waiting for answer How do you calculate the magnitude of displacement?

    For calculation of displacement, only the end points matter. He ends up 2.5 m above and 1.1 m to the side of his original postion. The displacement magnitude is |s| = √[2.5² + 1.1²] = 2.73 m. This is not the same as the total distance traveled, which is the sum of displacement magnitudes of each leg...

  • Waiting for answer What is the bond polarity of CCL4?

    In order to determine the bond polarity between two atoms, their respective electronegativities must be determined. is the tendency of a bonded atom to attract bonded electrons to itself. The difference in , ##Delta"EN"##, can help predict the bond type. In general, a ##Delta"EN"## of 0.4 indi...

  • Waiting for answer What is the remainder of 27 divided by 4?

    It is ##27=4*6+3## so the remainder is 3

  • Waiting for answer 4 less than a number ##n## is -15. What is ##n##?

    ##n=-11## The sentence means ##n-4=-15## ##n-4+4=-15+4## ##n-4+4=-11## ##n-cancel4+cancel4=-11## ##n=-11## God bless....I hope the explanation is useful.

  • Waiting for answer Which nations signed the Rush-Bagot Treaty?

    United States and Great Britain Both countries signed it over the boarder of Canada

  • Waiting for answer What is the function of DMEM? How does it help scientists cu...

    DMEM, or Dulbecco/ Vogt modified Eagle's Minimal Essential Medium, is a cell culture medium. It helps scientists culture cells by providing a nutrient rich surface for cells to grow on....

  • Waiting for answer How human body temperature is maintained at normal value (37...

    The human body tries to maintain favorable conditions. If you have low blood sugar, you feel hungry and you eat to increase your blood sugar. Body etmperature is like that. For example, shivering produces heat by contracting and releasing muscles rapidly and repeatedly to increase body temperature...

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