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Questions and task on the subject Chemistry
In addition to sodium give at least five or more metals which in the uncombined form do not have important application but when combined with a nonmetal/radical are found very usef...
Chemistry
25.01.2022 17:20
1 answer(s)
Which element is most likely to conduct het...
Chemistry
25.01.2022 17:20
3 answer(s)
A sample of argon gas occupies 0.82 Lat 1.34 atm. What will be its volume at 0.84 atm of pressure? 1. formula 2. work3. answer...
Chemistry
25.01.2022 17:00
1 answer(s)
Answer this question I will mark brainlist...
Chemistry
25.01.2022 16:40
1 answer(s)
Identify the reactant oxidized and the reactant reduced in the following equations: a. NI(s)+Pb2+(aq) = Pb (s) + NI2+(aq) FeSO4(aq) + Mg(s) → Fe(s) + MgSO4(aq) Cl2(g) + 2 K(s) →2...
Chemistry
25.01.2022 16:30
3 answer(s)
What is the volume of 8 moles of 02...
Chemistry
25.01.2022 16:20
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Which of the following cause delpetion in the water table of the place...
Chemistry
25.01.2022 16:10
2 answer(s)
How many grams of P2O5 can be produced from 4.6 x 1023 atoms of P?...
Chemistry
25.01.2022 16:10
3 answer(s)
What is the theoretical yield, in grams, of LiHCO3 that can be produced from 45.3 grams of LiOH according to the reaction below? LiOH + CO2 → LiHCO3...
Chemistry
25.01.2022 16:00
3 answer(s)
20. A beaker of a liquid with a vapor pressure of 350 torr at 25°C is set alongside a beaker of water, and both are allowed to evaporate. In which liquid does the temperature cha...
Chemistry
25.01.2022 15:50
1 answer(s)
I really need help! ((The balanced equation is attached)) a. Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction &...
Chemistry
25.01.2022 15:40
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State two substances that can be used as a filter in water treatment....
Chemistry
25.01.2022 15:20
2 answer(s)
Nuclear radiation can be used to look for flaws in metal parts of bridges. The process is similar to using Xrays to look at human bones. What type of radioactive decay would work...
Chemistry
25.01.2022 14:50
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What is the mass of 2.49 moles of sucrose?...
Chemistry
25.01.2022 14:50
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How can studying models help geologists learn more about crystals?...
Chemistry
25.01.2022 14:50
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Name the two gases that make up most of the air....
Chemistry
25.01.2022 14:50
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For the following reaction, 36.0 grams of zinc oxide are allowed to react with 6.92 grams of water . zinc oxide(s) + water(l) zinc hydroxide(aq) What is the maximum mass of zinc...
Chemistry
25.01.2022 14:50
2 answer(s)
Can someone please help me with this asap...
Chemistry
25.01.2022 14:40
2 answer(s)
You have a 250 mL sample of a gascous substance at 15°C and 0.862 atm that has a mass of .438 g. What is the molecular weight of this substance? Mm= g/mol...
Chemistry
25.01.2022 14:40
2 answer(s)
What is the percent yield of CO2 if 46.5 grams of CO2 is recovered from the reaction of 21.5 grams of C2H2 according to the reaction below? 2 C2H2 + 5 O2 —> 4 CO2 + 2 H2O...
Chemistry
25.01.2022 14:30
2 answer(s)
Give the mass of 1.3545 X 10^24 atoms of K...
Chemistry
25.01.2022 14:30
1 answer(s)
What is the percent yield of CO2 if 46.5 grams of CO2 is recovered from the reaction of 21.5 grams of C2H2 according to the reaction below? 2 C2H2 + 5 O2 —> 4 CO2 + 2 H2O...
Chemistry
25.01.2022 14:20
3 answer(s)
What is the percent yield of CO2 if 46.5 grams of CO2 is recovered from the reaction of 21.5 grams of C2H2 according to the reaction below? 2 C2H2 + 5 O2 —>4 CO2 + 2 H2O...
Chemistry
25.01.2022 14:10
2 answer(s)
What is the mass in grams of 2.50 mol of ammonia vapor, NH3?...
Chemistry
25.01.2022 14:00
3 answer(s)
How many moles of He are in a 9.57 L He tank?...
Chemistry
25.01.2022 14:00
1 answer(s)
CAN SOMEONE PLEASE HELP ME WITH THIS...
Chemistry
25.01.2022 14:00
2 answer(s)
*Connexus* Which result occurs during an endothermic reaction? * -Heat is absorbed from the environment into the chemical(s). -Heat absorbed from the environment equals heat rele...
Chemistry
25.01.2022 14:00
1 answer(s)
Can someone help me with this...
Chemistry
25.01.2022 14:00
3 answer(s)
When calcium carbonate is heated, it breaks down into calcium oxide and carbon dioxide. CaCO3(s) ➡️ CaO(s) + CO2 (g) You heat 2.0 moles CaCO3. How many moles of carbon dioxide(...
Chemistry
25.01.2022 14:00
2 answer(s)
A 50.0 g sample of liquid water at 0.0°c ends up as ice at -20.0°c. How much energy is involved in this change....
Chemistry
25.01.2022 14:00
3 answer(s)
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