Programming, .NET, Silverlight & More

How do you write net ionic equation for the reaction between nitric acid and calcium hydroxide?

admin — Tue, 09 Mar 2010 23:24:31 +0000

I have to write a net ionic equation for nitric acid and calcium hydroxide and all the answers I’ve submitted have been rejected. If someone could explain how to create the equation that would be great.

Write your reactants as ions in solution, as well as your products as either ions or molecules. Then cancel out things that appear on either side of the reaction
So:
2HNO3 + Ca(OH)2 -> Ca(NO3)2 + 2H2O
becomes
2H+(aq) + 2NO3-(aq) + Ca2+(aq) + 2OH-(aq) -> Ca2+(aq) + 2NO3-(aq) + 2H2O(l)

As you can see, 2NO3- and Ca2+ appears on both sides of the equation, so we cancel them out, and they are excluded from the net ionic equation

Net ionic:
2H+ (aq) + 2OH- (aq) - 2H2O (l)

What is a job based on computer programming that makes a lot of money?

admin — Fri, 05 Mar 2010 23:22:35 +0000

Hello, I am fifteen years old, and I have approximately five days to decide my future job.
I am wondering if there is any career in computer programming that provides extremely good money (400,000$+). Also could you please list some courses that I would have to take in order to achieve this.
Thank you for your time. Full points to the best answer.
Most programmers don’t make 6 figures (or barely make 6 figures, if they’ve been at it for a while). For that kind of money, you have to have some pretty good ideas, skills, and business sense. One possibility: creating a startup that get’s bought out by a bigger firm. A great deal of success can be had through independent efforts (think: Google, Facebook), but it’s also rather risky (you’re not likely to be the next Google, or Facebook). If you’re interested in a more corporate setting, upper management positions (senior design leads, etc.) probably make closer to the amounts you’re talking about. And any large software company will have plenty of upper management positions (though not easily attained, necessarily, without a lot of motivation and people skills, on top of programming skills).

The courses you take are almost irrelevant; if they have programming courses at your school you should definitely take them; but it’s more important that you have the desire to learn things on your own. You can learn a lot more about programming by just trying things out than by taking structured courses (experience is everything).

I think you have the wrong perspective here: don’t worry about money or courses or your career, even. Just try to find something you like doing, then afterwards try to figure out how you can make money doing it.

In Dreamweaver, is there a keystroke or a way to add a button for strikethrough?

admin — Wed, 03 Mar 2010 20:33:19 +0000

I use Dreamweaver in a way that I need the command constantly. As far as I can tell, the only ways to make that line appear through the text is by manually coding it in or my using the dropdown menu. Those are both really inconvenient. Is there any way to add a strikethrough button to a toolbar menu? Alternatively, is there a keystroke that could do it for me?

Those tags are deprecated in HTML 4.0.1, meaning they may become obsolete in future versions of HTML. Use CSS to do that:

Have you tried using the Redo Command to see if it would work. My editor has code snippets which are easily added when I need them. Must be the reason why I haven’t opened my DW in ages.

Actually, by default Dreamweaver does not use the traditional and HTML tags for bold and italic, respectively. Instead it uses and (for emphasis). The latter tags are preferred as part of best practices, because they are better handled by screen readers used by visually impaired users. If you want to switch Dreamweaver back to using and , choose Edit > Preferences (Dreamweaver > Preferences), and in the General category of the Preferences dialog, deselect "Use and in place of and ."

Ron

What are the factors influencing the net direction of water movement in animal and plant cells?

admin — Sat, 27 Feb 2010 15:26:28 +0000

And how do they differ with respect to the effects of net water movements?

The osmotic pressure, turgor pressure and the water potential are the factors responsible for the net flow of water, from one cell to another.

WPF button only works when clicking on content?

admin — Sat, 27 Feb 2010 15:26:04 +0000

Using c# windows form, hosting a wpf user control, the buttons on the user control only allow a click on the content of the button, but not on the button’s blank space. Is there a property that changes this?

Have you got the click handler on the content rather than the button? I tend to code buttons as:

(Although that seems unlikely, but it’s possible.)

I’m always caught out by windows that don’t have a fill, even a transparent fill, associated with them. If it isn’t painted, it isn’t clickable!

How do I load different content in Dreamweaver without loading new page?

admin — Thu, 25 Feb 2010 16:42:33 +0000

I’m developing a website using Dreamweaver CS3, the pages all have the same wudgets on (flickr & twitter) and as a result, I’d prefer that the whole page not need to reload when user clicks on navigation. Is there a way that I could have only part of the page load different content?

Just open new instances

Why won’t Microsoft Silverlight install on my mac?

admin — Sun, 21 Feb 2010 19:26:14 +0000

I’m trying to watch Netflix, and it says I need to install Silverlight first. So i did. When I click open, it takes me to where the file is located and then tries to open in the Finder but nothing happens. Its making me really frustrated because I don’t understand why its not working. Can you pleeease help me?

Try this link (If not already)

http://www.apple.com/downloads/macosx/development_tools/silverlight.html

What kind of jobs could an undergrad get in the field of computer programming?

admin — Wed, 17 Feb 2010 22:40:47 +0000

I’ve been working at an electronics shop for a few months, and I do some repair involving replacing parts and things like that, but I’m more interested in the actual programming. I am studying computer programming and I would like to know all possible job opportunities in this field where an undergrad can easily be hired and do real programming work. Just a list will do.

According to the U.S. Bureau of Labor Statistics, the median earning for wage-and-salary computer programmers was $65,510 as of 2006. Meanwhile, the mid-50 percent of wage-and-salary computer programmers were paid somewhere in the range of $49,580 and $85,080 annually. To further compare, the top 10 percent of earners had a yearly salary of more than $106,610 while the bottom 10 percent was paid less than $38,460.

Although the U.S. Bureau of Labor Statistics predicts a decline in employment opportunities in computer programming, there will always be job openings in this field as people retire or leave for other positions.

Computer programmers are an essential part of today’s economy and its industries. Though more than at home in the computer field and related areas, computer programmers can also be found working for places like schools, government agencies, and everyday companies. Wherever there’s a need for a personalized program or software that’s uniquely designed for an industry/company, you’ll find a computer programmer working to make it happen.

Thanks to the PC-driven nature of their jobs, many computer programmers choose to work from their own homes and offices. Referred to as telecommuting, this work arrangement allows computer programmers greater flexibility and efficiency.

If you have a net book without a CD drive how do you install software?

admin — Wed, 17 Feb 2010 22:40:40 +0000

I have a net book and would like to install some anti virus software, however most of it seems to be downloaded from a CD. As my net book does not have a CD drive this is not possible. How else can I install this (and any other) software?

A digital version of the software that can easily be found on the internet.

If you do have older CD’s with things you want to install then getting an external dvd drive is your best option

How can you gain access to a website in Dreamweaver CS4?

admin — Mon, 15 Feb 2010 23:36:18 +0000

I have to work on a website, but im not sure how to edit a website through dreamweaver. Im taking over from someone who was fired, but I dont know what they were using before, and there is no way to find out. Do I need another program so that I can get into the site or something?

Hi! I am intrigued to know why your colleague got fired But on with the answer. I gather that the site is still up and running? Well, before you can access it you will need to know a few things :-
1. Who is hosting the site ( the ISP - Internet Service Provider )
2. The server ID plus the person’s login and password - if you ain’t got these then you are stuffed pretty much I am sorry to say. I do not know if the site was created in Dreamweaver or not - so this answer may be a tad generic if you know what I mean?

I do not know if you have access to the computer in your work where the guy kept all the files for the site but if you have then you will have to open them up ( assuming they have not been created using Dreamweaver ) copy each file and paste it into Dreamweaver. Now you may have a prob with the graphics as their paths may be all to pot - delete all the rubbish from their paths so you just have for example, picture1.gif. If the pics are impossible to get right then you will have to use something like Snagit to capture them from the site - Snagit has a trial period so you can use it to sort your website out without having to pay for it.

If in the unlikely event the guy has lost or taken away the details of the ISP, then there is another way to do this. Bring the site up then right click and view the source code. Copy and paste this directly into Dreamweaver. If the graphics have gone follow the above. Once you have the files in Dreamweaver it should be easy enough for you to edit the site. You will then have to find a new ISP or use the same one if you know who it is. The trouble with this method is that if you have to move ISP then you will need to transfer the domain name of your site. To do this you will need to request a MAC number from the old ISP in order for you to transfer the domain - they have to give it to you so don’t take any crap of them.

Hope that helped a bit.

Good luck!
J