The U.S. is one of several countries committed to reaching “net-zero” carbon emissions by 2050. This means that by 2050, all carbon dioxide emissions must be matched by the amount of carbon dioxide removed from the air. Why is it essential for all countries in the world to meet carbon reduction commitments like this

The reaction between ammonia and oxygen is given below: 2 NH3(g) +2 O2(g) → N2O(g) +3 H₂O(1) We therefore know that which of the following reactions can also occur? N2O(g) +3 H2O(l) → 2 NH3(g) +2 O2(g) 4 NH3(g) +5 O2(g) →4 NO(g) + 6 H₂O(g) 4 NO(g) +6 H2O(g) →4 NH3(g) +5 O2(g) None of the Above

Choose all of the given components that should not be included in a Materials and Methods/Experimental section of a research article. tables of data identifying the amount of product formed by chemical reactions being studied the claims that the author wants to make regarding the research the conclusions that can be made from the data taken in the research project the types of instruments and devices used to conduct the research why the particular instruments were used to conduct the research tables of data identifying the amount of each reactant in the research project figures that include the data collected in the research project O O O

You have a lot of paperwork laying around. A ream of stacked paper is 500 sheets and is 2.0 inches thick.  Let's say you had a mole of paper. (1 mole of paper = 6.022 x 10^23 sheets of paper) and it was all stacked up in 10 stacks of equal height, each containing a tenth of a mole of sheets. The ten stacks sit one on top of the other. How high are they?

A car releases 55.0g of CF2Cl2 each month. How much Cl is emitted into the atmosphere by this car in a year ? Show work please

Suppose a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives product C. A+B D →> Reaction 2 gives product D. The following facts are known about the two reactions: • Reaction 1 is endothermic and Reaction 2 is exothermic. • If a reaction vessel is charged ("filled") with A and B, then at first C is produced faster than D. Use these facts to sketch a qualitative reaction energy diagram for both reactions. Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to have the right relationship to each other. For if one energy is less than another, that fact should be clear in your sketch. energy A + B Reaction 1 reaction coordinate energy A + B Reaction 2 reaction coordinate ☑

Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C(s)+O2(g)→2CO(g)   In the second step, iron(III) oxide and carbon monoxide react to form iron and carbon dioxide:   Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g)   Write the net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide. Be sure your equation is balanced.

How many moles of oxygen are required to completely combust 3.7 moles of C6H14? How many grams of carbon dioxide are produced? Identify the type of reaction.

In 2014, the World Anti-Doping Agency announced that Xenon gas would be added to the list of banned substances for athletes.    Apparently since 2004, Russian athletes had been inhaling xenon while training, with the physiological effect being to boost the capacity of blood to carry oxygen needs for aerobically demanding sports.    If an athlete inhaled an average of 1.75 x 10-4 moles of Xe per breath while sleeping, with an average rate of 13.0 breaths per minute for 8.50 hours how many total GRAMS of Xe(g) were inhaled while sleeping? please show all calculations

An ore sample is known to contain copper sulfate pentahydrate, CuSO4•5H2O. If a 10.392 g sample of the ore loses 0.9630 g of water when heated strongly, what is the maximum mass, in grams, of CuSO4•5H2O that could have been in the sample? (MW of CuSO4•5H2O = 249.55 g/mol)