Sedimentary rock is the answer <span />
Explanation:
Radioactive dating works on the principle that a radioactive isotope can decay into the stable daughter nuclei at a constant rate. Geologist generally use the principle for half life. Half life is the time required for half of the radioactive substance to decay. This is constant for a particular element.
Answer:
ATP uses the energy from ATP hydrolysis and moves ions across the membranes.
Explanation:
- The mechanism of transportation of proteins and ions across cell membrane uses the ATPase that consume the energy from ATP hydrolysis and moves the small molecules across the cell membrane.
- The energy is used against a established electric potential or simply the chemical concentration gradient.
- This mechanism of transportation of ions is the example of active transport and a coupled chemical reaction.
1 mol 2 mol
84g of N2(g) = 84/28 = 3 mol of N2(g)
From the above reaction 1 mol of N2(g) gives 2 mol 0f NH3(g). So 3 mol of N2(g) should give 6 mol or (6x17) 102 g of NH3(g). But we are getting only 85.0 g of NH3.
Hence %yield of NH3 = 100x85.0/102 = 83.3%
Answer D. is correct.
2. 2HgO (s) --------------------- 2Hg (l) + O2 (g)
2 mol 2 mol 1 mol
4 mol 4 mol 2 mol
As only 1.5 mol of O2 is obtained, so % yield = 1.5x100/2 = 75.0%
Moreover 603 g of Hg = 603/200.59 = 3.00 molof Hg. Considering this also
% yield = 3x100/4 = 75%
You can tell tara that exposed newborns tend to <span>have lower Apgar scores.
Analgesia will reduce pain in the labor, but the pain is causing the release of many hormones that will assist in labor. The absence of those hormones can make the baby have lower Apgar scores after labor.</span>
