please within five minutes Science Assignment Help

please within five minutes Science Assignment Help. please within five minutes Science Assignment Help.


(/0x4*br />

4 HCl + O2 → 2 H2O + 2 Cl2

How many moles of O2 are required to react with 231 moles of HCl?

What mass of O2 can be formed from the decomposition of 35.8 g of NH4NO3?

What mass of N2 can be formed from the decomposition of 35.8 g of NH4NO3?

please within five minutes Science Assignment Help[supanova_question]

please i need the answer within five minutes Science Assignment Help

Calculate the volume of 2.59×10-3-M NaClO4 solution needed to provide 8.47×10-2 g of NaClO4.

Calculate the molality of magnesium acetate in the solution prepared by adding 43 grams of the salt to 128 grams of water. 

[supanova_question]

please i need the answer within five minutes Science Assignment Help

Calculate the volume of 2.59×10-3-M NaClO4 solution needed to provide 8.47×10-2 g of NaClO4.

Calculate the molality of magnesium acetate in the solution prepared by adding 43 grams of the salt to 128 grams of water. 

[supanova_question]

can someone help please Science Assignment Help

What mass of the second-listed reactant in each of the following reactions is needed to react completely with 7.523 g of the first-listed reactant?

4NH3 + 5O2 → 4NO + 6H2O 

CaO + 3C → CO + CaC2 

Balance the reaction of sulfuric acid with sodium hydroxide.

H2SO4 + NaOH → Na2SO4 + H2O

How many moles of sodium sulfate are produced when 33.3 moles of sodium hydroxide completely react with sulfuric acid.

[supanova_question]

can someone help please Science Assignment Help

Balance the reaction of sulfuric acid with sodium hydroxide.

H2SO4 + NaOH → Na2SO4 + H2O

How many moles of sodium sulfate are produced when 34.8 moles of sodium hydroxide completely react with sulfuric acid.

[supanova_question]

[supanova_question]

please i need the answer within five minutes Science Assignment Help

A 118-mg sample of Na2CO3 is dissolved in H2O to give 2.30L of solution. 

What is the concentration of Na+ in parts per million (ppm)?What is the final molarity when 40.00 mL of a 0.803-M HClO4 solution is diluted to 660.00 mL?

please i need the answer within five minutes Science Assignment Help[supanova_question]

can some one please help me please fast fast Science Assignment Help

Carbonyl bromide, COBr2, decomposes to CO and Br2 by the following simple, gas-phase, reaction: 

COBr2(g) ↔ Br2(g) + CO(g)

If a 2.0 liter flask is found to contain 0.093 mol of COBr2 at equilibrium, what will be the equilibrium concentrations of CO and Br2 in the same flask? The equilibrium constant for this reaction is Kc= 0.190. Enter your answer in scientific notation

[supanova_question]

The sides of a triangle are in a 2:3:4 ratio. What is the length of the longest Mathematics Assignment Help

The sides of a triangle are in a  2:3:4 ratio. What is the length of the longest side if the perimeter of the triangle is 63 in.?
 
A. 28 in.
B 14 in.
C 21 in.
D 7 in.

Simplify: -(3a+4b)+5a-4b
 
A.2a+8b
B.2a-8b
C.8a-8b
D. 2a

[supanova_question]

please i need the answer within five minutes Science Assignment Help

A sample of approximately 5 grams of sodium hydroxide (MM 40) was weighed on an electronic balance. Its mass was found to be 4.796 grams. This sodium hydroxide was dissolved in sufficient water to make 320 mL of solution. What is the molarity of the solution? Enter your answer with three significant figures. 

_____is a Glassware used to transfer the 2.159 M NaOH to be diluted

 







 <= Glassware used to measure the final volume of the diluted M NaOH

[supanova_question]

please i need the answer within five minutes Science Assignment Help

A 118-mg sample of Na2CO3 is dissolved in H2O to give 2.30L of solution. 

What is the concentration of Na+ in parts per million (ppm)?What is the final molarity when 40.00 mL of a 0.803-M HClO4 solution is diluted to 660.00 mL?

[supanova_question]

please within five minutes Science Assignment Help

please within five minutes Science Assignment Help

× How can I help you?