Questions by Redwan

Questions by Redwan

Na2SiO3 (s) + 8HF(aq) → H2SiF6 (aq) + 2NaF(aq) + 3H2O (l) How many moles of HF are needed to react with 87.44 mol of Na2SiO3? How many grams of NaF form when 0.94 mol of HF reacts with excess Na2SiO3?

asked Mar 11, 2024

1 answer

4 votes

60.7k views

Examine whether the system described by the following input/output relationships are (i) linear or nonlinear, (ii) time variant or time invariant, (iii) memoryless or with memory, and (iv) causal or noncausal.

asked Mar 7, 2024

1 answer

0 votes

142k views

I’m really stuck on this one can someone please help I would highly appreciate it.:)

asked Jun 10, 2023

1 answer

23 votes

144k views

2. Using the figure, find and y.

asked Jun 6, 2023

1 answer

2 votes

214k views

suppose you are studying an unknown solution based on its precipitation reactions with other solutions, resulting in this data table. na2so4 nacl na2co3

asked Mar 26, 2023

1 answer

3 votes

170k views

Explain how you can use an array to find partial products for 4x36.

asked Mar 15, 2023

1 answer

2 votes

233k views

The function, f(x), is plotted below. Evaluate the limits, if they exist. If not, write DNE. Limit as x approaches negative 1 minusf(x) = Limit as x approaches 3 plusf(x) = Limit as x approaches 1 f(x)

asked Nov 8, 2022

2 answers

1 vote

22.0k views

I really need this answered!

asked Oct 3, 2022

1 answer

5 votes

176k views

Solve for w: 19 + w = 30

asked Sep 23, 2022

1 answer

3 votes

180k views

Simplify: 2x²(4x³-3x²+6x)

asked Sep 8, 2022

2 answers

5 votes

155k views

During this time period how long did it take to get to America from Europe?

asked Aug 27, 2022

1 answer

3 votes

216k views

True or false Europe has a very tropical climate.

asked Jun 1, 2022

1 answer

18 votes

129k views

Deforestation can cause all living organisms to die. * True False

asked Apr 9, 2022

2 answers

3 votes

81.5k views

Twice the sum of j and 4

asked Mar 2, 2022

1 answer

17 votes

123k views

What is the missing number? 22 16 19 38 10 24 14 8 ?

asked Feb 14, 2022

2 answers

5 votes

47.3k views

How far would a baseball travel in 0.5 s if it is thrown at a speed of 20 m/s? 40 s 10 m O 10s 40m

asked Dec 21, 2021

1 answer

0 votes

158k views

ABCD is a parallelogram which statements are true

asked Dec 7, 2021

2 answers

4 votes

178k views

¿Qué hiciste durante el fin de semana? Contesta en pretérito. *

asked Oct 25, 2021

1 answer

3 votes

70.5k views

I am writing an essay. The teacher wrote me an email and gave me some tips. But what does "Provide your source here " mean? Should I add examples? Because my sentence is: "The government even decided about

asked Oct 19, 2021

1 answer

2 votes

41.9k views

A researcher is culturing cells in a petri dish. After a few weeks, she notices that these cells have formed a "sheet," with junctions visible between individual cells. All of the statements are true regarding

asked Aug 10, 2021

1 answer

5 votes

138k views

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