Answer:
Answers are given below.
Explanation:
Balanced reaction:
So, 3 molecules of react completely with 1 molecule of and produce 2 molecules of .
Hence, 6 molecules of react completely with or 2 molecules of and produce or 4 molecules of
(A) number of molecules = 4
(B) number of molecules = (6-2) =4
(C) number of molecules = (6-6) = 0
Equation (D) represents best this reaction.
Answer:
Cobalt chloride= D cobalt(111) chloride
Data:
V (volume) = 500.0 mL = 0.5 L
T (temperature) = 15.00ºC
(converting in Kelvin) → TK = TC + 273 → TK = 15 + 273 = 288 K
P (pressure) = 736.0 mmHg
R (constant) = 62.363 (mmHg*L/mol*K)
m (mass) = 2.688 g
M (Molar Mass) = ? (g/mol)
Formula: General Gas Equation
Solving:
Product of extremes equals product of means:
Therefore: <span>The gas found to have such a molar mass is
xenon gas</span>
Answer:
See the answer below
Explanation:
A microscope is a laboratory tool that is used to <u>magnify the image of objects</u> This allowed scientists to <u>study tiny organisms that cannot be seen with an ordinary eye</u>. We cannot see some organisms using our naked eyes, such as <u>bacteria,</u> protists, <u>viruses,</u> and <u>microscopic fungi.</u> The main parts of a microscope that magnifies are the <u>ocular</u> and the <u>objective lenses</u>. the <u>lamp </u>serves as the light source. In order to see the specimen clearly the stage needs to be adjusted at the right distance from the lens. this is done using the <u>coarse</u> and <u>the fine adjustment knobs</u>. other parts of the microscope such as the <u>base</u> and <u>the arm</u> serve as primary support for the device.
The microscope is primarily designed to magnify the image of objects and, thus, enables one to see objects that cannot ordinarily be seen with the naked eyes. It magnifies objects using a system of lenses in the ocular and the eyepiece. Microscopic organisms such as protists, bacteria, viruses, microscopic fungi and algae can be seen using the microscope. Slides of objects are prepared and placed on the stage of the microscope and the coarse/fine adjustment knobs used to adjust the stage in order to bring the image on the slide into focus through the ocular. A lamp at the base provides the light source for the light microscope while other parts such as the arm, the head, and the base provide supportive functions for the microscope,