04/18/21

Answer please ...........

The reaction HI(aq) + NaOH(aq) → H2O(l) + NaI(aq) is a(n) _____ reaction. a. acid–base b. single replacement c. decomposition reaction d. None of these e. precipitation

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration.

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration. How do you find the concentration of the NaOH?

04/16/21

What volume of CO2 gas at 1.24 atm and 311 K would be formed when 10.0 mL of 1.0 M HCI is mixed with excess NaHCO3?

Some antacids contain the base sodium bicarbonate, NaHCO3, which reacts with hydrochloric acid in the stomach to yield sodium chloride, carbon dioxide and water.

04/16/21

Slope intercept

Complete the equation of the line whose y-intercept is (0,6) and slope is 3

04/16/21

Chemistry Neutralization Concentration

Consider the neutralization reaction2HNO3(aq)+Ba(OH)2(aq)⟶2H2O(l)+Ba(NO3)2(aq)A  sample of an unknown  solution required  of  for complete neutralization. What is the concentration of... more

04/15/21

How to do this?

What volume of 2.50M NaOH is needed to completely neutralize 80.ml of 1.75m HCL?2.what is the concentration of 500.ml of NaOH if it is neutralized (completely) by 800.ml of 0.50m HCL??3. what... more

Which of the following solutions has the highest concentration of hydroxide ions? a) NaCl b) HCl c) C6H12O6 d) NaOH

Which of the following solutions has the highest concentration of hydroxide ions?a) NaCl b) HCl c) C6H12O6 d) NaOHExplain your answer, in terms of what kind of substance it is:

04/15/21

NH3 water dissolvation

4.84 l of NH3 dissolves on 2 l of water. Find: a) number of moles of NH3 b) the molar percentage of the obtained solution

04/15/21

Eoc Grading Question

Hello! So, if anyone knows how to help me that would be great! I currently have an 88 in my Algebra 1 class. We have an EOC coming up and I'm sure I will not pass. If my EOC is worth 15% and I... more

04/15/21

unit 10 lesson 2

The frequency of a radio wave varies inversely as its wavelength. If a 750-meter wave has a frequency of 400 kilohertz, what is the wavelength of a wave that has a frequency of 200 kilohertz? Round... more

04/14/21

How many grams of iron are created?

1) How many grams of iron are created from 50 moles of FeO?2Al + 3FeO --> 3Fe + Al2O32) How many grams of iron are created from 59 grams of Al? 2Al + 3FeO --> 3Fe + Al2O3

I don’t understand this question

Use the equation 2 Al + 3 Cl2 —> 2 AlCl3. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant

04/14/21

Write the following expression in algebraic language

"three times the quantity x plus y added to the quantity a minus b"

What are the answers to the three questions? And how do you calculate and get those answers?

0.98 g of silver (I) nitrate was dissolved in water and a 0.56 g piece of copper wire was placed in the solution. The color due to silver (I) nitrate soon faded and a precipitate of solid silver... more

04/13/21

NEEDED ASAP: I solved the problem already which is 2/(x+3) + 3/(x-4) = (2x-2)/(x^2-x-12) and I wanted to make sure that i answered it correctly and if whether or not there is an extraneous solution

2/(x + 3) + 3/(x - 4) = (2x - 2)/(x^2 - x - 12) 2/(x + 3) + 3/(x - 4) = (2x - 2)/((x - 4)(x + 3)) ((x - 4)(x + 3))(2/(x + 3)) + (3/(x - 4))((x - 4)(x + 3)) = ((2x - 2)/((x - 4)(x + 3)))((x - 4)(x... more

04/13/21

Algebra 1 - One question, I'm not sure how to solve and it's worth 4 marks. That means there are 4 things I must include in my answer, but I don't know what they are.

The price of a public metro ride rose from $2 to $2.50. If you graphed thefunction f(x) = the cost of x metro rides, how would the graph changeafter the fare rose?

04/13/21

Math Problem #2

Salvador invests $7000 in two different accounts. The first account paid 12 %, the second account paid 2 % in interest. At the end of the first year he had earned $370 in interest. How much was in... more

04/12/21

Find the equation of the line that is perpendicular to the given line and passes through the given point

Find the equation of the line that is perpendicular to the given line and passes through the given pointy = -1/3x -5; (12,,0)

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