Answer:
Option d. 6.95 g
Explanation:
First of all, we state the reaction:
2NaCl + Pb(NO₃)₂ → PbCl₂ + 2NaNO₃
We determine the moles of each reactant, to state the limiting
Firstly we convert volume frm mL to L
0.200 L . 0.250M = 0.05 moles of NaCl
0.200L . 0.250M = 0.05 moles of Pb(NO₃)₂
Acording to stoichiometry we know that relation is 1:2, so the limiting reagent is the NaCl.
For 1 mol of Pb(NO₃)₂ I need 2 moles of NaCl
For 0.05 moles of Pb(NO₃)₂ I would need, the double → 0.1 moles
(We only have, 0.05 moles of NaCl)
Stoichiometry to the formed product is 2:1
From 2 moles of NaCl I produce 1 mol of PbCl₂
From 0.05 moles I would produce, the half → 0.025 moles
Let's convert the moles to mass → 0.025 mol . 278.1 g / 1mol = 6.95 g
3090000000nm
since there's 1m = 1000000000nm
Answer:
This is because an increase in temperature increases the movement of molecules/particles of reactants which encourages collision and subsequently, reaction.
Explanation:
1. carbon cycle
all of the physical processes and chemical reactions that result in the movement of carbon between the biosphere (living forms) and the geosphere (water, earth, and atmosphere)
Carbon cycle is the cyclic movement of carbon in various form on earth. This process entails both physical and chemical processes that ensures that carbon moves in different spheres of the earth. Carbon is one of the most important element in life. It is the building block of most organic processes on earth.
2. carbon footprint
a calculation that considers an individual's contribution to the process of global warming based on activities leading to greenhouse gas production
Carbon footprint is important in mapping the quota of carbon emitted into the atmosphere
It is the amount of greenhouse gases contributed into the atmosphere by individuals.
3. global warming
an overall increase in world temperatures that may be caused by additional heat being trapped by greenhouse gases
It is the overall increase in global temperature. It has severe consequences.
Global warming results when greenhouse gases in the atmosphere traps outgoing radiation in an anomalous way.
4. greenhouse gas
components of the air mixture that trap infrared (heat) energy
Greenhouse gases are gases that prevents long wave radiation from leaving the earth surface. They absorb the gases in turn, warming occurs on earth.
Learn more:
Greenhouse gases brainly.com/question/4580761
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