<span>Niels Henrik David Bohr is the scientist credited with developing the orbital model of the atom. He was Danish physicist who made foundational contributions to understanding atomic structure and quantum theory. He received the Nobel Prize in Physics in 1922</span>
Answer:
Explanation:
When you start to feel you are desiring more than just a casual friendship with your best friend and you’re not sure what to do next, let me offer you some advice that could strengthen both your relationship and your love for each other.
First, don’t rush into a romantic relationship with your best friend…many times people confuse love with that other kind of caring love you feel for all of your other friends.
Second, don’t spill your guts right away. You might feel like you have to share all your thoughts and feelings with the other person as soon as you start to feel something. That’s usually a mistake.
Answer:
Repeat the experiment several times to make sure the results are reliable.
Explanation:
The best way for Chris to validate his results is to repeat the experiment several times to make sure the results are reliable.
For a hypothesis to be accepted it must be testable.
- The more standard data points obtained from an experiment, the more the reliability index increases.
- Chris should not just conclude with one data point.
- In fact, most scientist prefers to use up to 30 data points before reliability can be assumed.
- So, Chris should repeat the experiment as much as possible to make sure the results are reliable.
The three main types of volcanoes are composite<span> or strato, </span><span>shield and dome.</span>
Answer:
CH3COOH would be more concentrated
Explanation:
The higher the concentration value, the more concentrated it is.
The relationship between concentration, moles and volume is given by the equation;
Concentration = No of moles / Volume
5.0 grams of HCOOH dissolved in 189 mL of water
Number of moles = Mass / Molar mass = 5 / 46.03 = 0.1086 mol
Concentration = 0.1086 / 0.189 = 0.5746 mol/L
1.5 moles of CH3COOH dissolved in twice as much water
Volume = 2 * 189 = 378 ml = 0.378 L
Concentration = 1.5 / 0.378 = 3.9683 mol/L
Comparing both concentration values;
CH3COOH would be more concentrated