Questions by Sylwia

Questions by Sylwia

In the determination of iron in an ore, the ore (mostly Fe2O3) is first dissolved in HCl(aq). A slight excess of Sn2 is added to reduce Fe3 to Fe2 . Enter the net ionic equation for the redox reaction.

asked Jul 11, 2020

1 answer

5 votes

135k views

Name four wave properties that are common to all members of the electromagnetic spectrum?

asked May 23, 2020

1 answer

0 votes

128k views

Why did the daguerreotype process eventually decline in popularity?

asked Oct 1, 2019

1 answer

0 votes

190k views

Which of these statements if true about viruses? A) it is unicellular in nature and it reproduces asexually B) it can reproduce only within other cells C) it’s hereditary material is in the form of a capsid

asked Jun 7, 2019

1 answer

1 vote

29.9k views

What is the best explanation for why it is important to identify sources in your research plan ?

asked Jan 28, 2019

2 answers

1 vote

140k views

Which of the following can be found in a word etymology entry? (multiple answers) 1. pronunciation of the word 2. the languages that have used the word through the years 3. the name of the first person

asked Sep 15, 2018

1 answer

3 votes

91.1k views

A double star has two components of equal brightness, each with a magnitude of 8.34. if these stars are so close together that they appear to be one object, what is the apparent magnitude of the combined

asked Aug 9, 2018

1 answer

3 votes

62.4k views

Accelerating rate of 2m/s. Initial velocity is 20m/s. What's velocity after 30 seconds

asked Mar 28, 2018

1 answer

2 votes

161k views

If three pencils cost total of 75cents, how much would six pencils

asked Jun 18, 2016

2 answers

0 votes

194k views

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