05/08/21

chem question please help asap
The combustion of octane, C8H18,proceeds according to the reaction shown.2 C8H18(1) + 25 O2(g) ------ > 16 CO2(g) + 18 H20(1)If 5.30 X 10^2 mol of octane combusts, what volume of carbon dioxide... more
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05/07/21

How do I solve 1/3x + (2x+8) +x = 205
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05/07/21

How many grams carbon dioxide can be formed from 29 grams of methane (carbon tetrahidride)?
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05/05/21

GRAM to gram mole ratio stoichemetry pratice #6 worksheet
GRAM TO GRAM MOLE RATIO STOICHMETRYCopper I iodide , Cul , is not stable enough to last long in storage , so it is generally made just prior to use . In can be prepared from copper sulphate and... more
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05/05/21

As the elevation increases, what happens to the psi?
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05/05/21

What volume of O2(g) is required to react with excess CS2(l) to produce 10.0L of CO2(g)? (Assume all gases are measured at 0°C and 1atm.)
What volume of O2(g) is required to react with excess CS2(l) to produce 10.0L of CO2(g)? (Assume all gases are measured at 0°C and 1atm.)CS2(l) + 3O2(g) → CO2(g) + 2SO2(g)Show all calculations and... more
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05/04/21

The variable y varies directly as x. When x = 20, y = 12. What is the value of y when x = 15?
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05/04/21

In the balanced equation for the following, what is the correct molar coefficient for LiI? Li (s) + I2 (s) --> LiI (s)

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05/03/21

Hola please understand that I have needed help with my homework for weeks please someone actually respond and help me

1.) For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 17 moles of methane, CH4 ?Round your answer to the nearest tenth. If you answer is a whole number like 4,... more
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05/03/21

Need help on Chem. question fast!
The volume of a gas at 26◦C and 0.38 atm is 43 mL. What volume will the same gas sample occupy at standard conditions? Answer in units of mL.
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05/03/21

In the laboratory you are asked to make a 0.112 m magnesium nitrate solution using 355 grams of water. How many grams of magnesium nitrate should you add?
In the laboratory you are asked to make a 0.112 m magnesium nitrate solution using 355 grams of water.How many grams of magnesium nitrate should you add?
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05/03/21

What mass of P2O5 is produced from 45 g p?

The equation is: 4P+5O2=2P2O5
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05/02/21

I think its c Am i Correct ?
When table sugar is burned in presence of oxygen, carbon dioxide and water vapor are produced according to the unbalanced chemical equation: C12H22O11(s) + O2(g)→ CO2(g) + H2O(g) How many moles of... more
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05/02/21

i need immediate help with chemistry homework quickly please because no has actually helped me
2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2OIn the above equation, how many grams of N2 can be made when 18 moles of CuO are consumed?Round your answer to the nearest tenth. If you answer is a whole number... more
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05/01/21

How many atoms are in 1.14 mol of SO3 molecules?
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05/01/21

How many moles of hydrogen gas are present at STP if you have 0.200 L of hydrogen gas?
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05/01/21

If 0.35 moles of silver nitrate eacts fully, how many moles of copper will react with it. cu + agno3 → cu(no3)2 + ag
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05/01/21

if 6.3 moles of ethylene (C2H4) reacts with excess O2 how many moles of water will be produced? C2H4 + 3O2 -> 2CO2 + 2H2O
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05/01/21

A sample of gas has a pressure of 2.1 atm in a 4.5L container, if the container size is reduced to 3.1 what is the new pressure?
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05/01/21

Find the number of protons, neutrons and electrons in Mg+2
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05/01/21

Limiting Reactant
If 11.54 grams of pure sodium is reacted in the presence of 21.4grams of chlorine gas The limiting reactant in this situation is.... a. NaCl b. Na c. Cannot tell from information given d. Cl2
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05/01/21

(NEEDED ASAP) question is in the description

given the reaction at equilibrium N2(g) + 3H2(g) ↔ 2NH3(g)what is the mole-to-mole ratio between nitrogen gas and hydrogen gas? 1: 2 1: 3 2 : 2 2 : 3
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05/01/21

Chemistry. How much energy (in kJ) is required to boil 729 g of water? 1 mol water = 40.67 kJ
1 mol water = 40.67 kJ
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05/01/21

Given t(x) = x^-2 and r(x) = 42x^-4, find v such that t(v) = r(v)
Given t(x) = x^-2 and r(x) = 42x^-4, find v such that t(v) = r(v)
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05/01/21

What is the mass of 6.53 X 10^23 atoms of Ag?
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