Answer:
D.metals
Explanation:
The majority of elements in the periodic table are classified as metals.
Coulomb's law mathematically is:
F = kQ₁Q₂/r²
we integrate this with respect to distance to obtain the expression for energy:
E = kQ₁Q₂/r; where k is the Coulomb's constant = 9 x 10⁹; Q are the charges, r is the seperation
Charge on proton = charge on electron = 1.6 x 10⁻¹⁹ C
E = (9 x 10⁹ x 1.6 x 10⁻¹⁹ x 1.6 x 10⁻¹⁹) / (185 x 10⁻¹²)
E = 1.24 x 10⁻¹⁸ Joules per proton/electron pair
Number of pairs in one mole = 6.02 x 10²³
Energy = 6.02 x 10²³ x 1.24 x 10⁻¹⁸
= 746.5 kJ
Answer:
In the 150 years since Darwin proposed the theory of evolution by natural selection, a mountain of evidence has accumulated ... How can you know what happened millions of years ago if no one was there to see it? Evidence and observation are the building blocks of all scientific inquiry; evolutionary science is no different
Explanation:
Iodate has a charge of -1, this means its chemical symbol
must be IO3(-1) while Lanthanum is La(+3). Therefore making the compound
La(IO3)3.
However sulfate has a chemical symbol of SO4(-2), it has
charge of -2, therefore the formula for lanthanum sulfate is:
<span>La2(SO4)<span>3</span></span>
Answer:
The correct answer is a Receptor ubiquitinylation mechanism is most likely to irreversibly terminate a signal transduction pathway.
Explanation:
Cell signaling or signal trasduction is phenomenon that regulates all physiological and biochemical processes that occur inside our body.Cell signaling take place by the binding of signaling molecule to a specific receptor.
It is also very much important to terminate the signaling pathways after the physiological or biochemical process is completed to maintain body"s normal homeostasis.
Irreversible termination of signal transduction means signaling pathway that is terminated cannot be reversed for further activation. Receptor ubiquitinylation or destruction of receptor by ubiquitin proteins and its associated enzymes helps to irreversibly terminate a signal transduction pathway.