Draw the Lewis dot Structure for the molecule C2H6
Answers
Answer:
This means that the Lewis dot structure for C2H6 must account for 14 valence electrons, either through bonding between atoms, or through lone pairs. So, the two C atoms are placed in the center of the molecule.
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Electricity is the movement of _____ from one atom to another along a conductor.
Which of the following is not one of da Vinci's contributions to technology?a. effect of the moon on tides b. modern theory on the formations of the continents c. precise observations of human anatomy d. ideas for space travel
in addition to possibly releasing harmful chemicals in the environment, mining is considered? a.the most dangerous job in the United states. b.the most lucrative job in the United states. c.the least dangerous job in the United states. d.the least lucrative job in the United states
What is the speed of a wave yhat has a frequency of 2.0Hz
a. Name the technique that you would use to separate and identify the components of the solution.
b. Provide specific details of the method used.
c. State the advantage of the method you choose.
Answers
b. chromatography is an affinity based separation which means using specific adsorbents, it can separate the component with a higher affinity to the adsorbents.
c. the advantage of which is the precision as well as the simultaneous separation and contents analysis.
Answers
Answers
Answer:
45.6°C
Explanation:
Kinetic energy =
Use m= 1.80kg and v=7.80m/s (mass and speed of hammer).
K = 0,5*1.80kg*(7.80m/s)^2 = K=54.8J
Heat is 60% of Kinetic energy. Q = 0.6*54.8J = 32.9J
As it is stuck 10 times the total heat is 10*32.9J = Total Heat = 329J
Use the equation to find change of temperature:
Q = 329J; m = 8.00g of aluminium; C_v = 0.900J/g°C (For aluminium)
Calculating gives Change of Temperature = 45.6°C
28.45 m/s
34.91 m/s
21.29 m/s
Answers
The initial velocity is 12.34 m/s
Explanation:
The vertical component of the initial velocity determines the maximum height.
The formula to apply is : v²=u²+2as , where
v=y-component, final velocity = 0 m/s
u= y-component of the initial velocity = ?
s= distance traveled = 2.3 m
a=acceleration due to gravity = -9.81 m/s²
Using the values in the equation
v²=u²+2as
0²=u²+2×2.3×-9.81
0=u²-45.126
45.126=u²
√45.126= u
6.7175 m/s
The vertical component of velocity is given by;
velocity*sin(angle with horizontal)
velocity=6.7175 / sin 33°
=12.338 m/s
=12.34 m/s
Learn More
Finding Initial velocity :brainly.com/question/1858995
Keywords : angle, maximum height, initial velocity, friction
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to convey information accurately so scientists can refer to the same quantity no matter the location or language
there is no need to use the same system of measurements around the world
to measure accurately on equipment
so that all measurement systems can be used together
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What are the best units for a scientist to measure the distance between cities?
Question 3 options:
inches
meters
miles
kilometers
Answers
Question 1:
The best option for the benefit of using the metric system and SI Units is:
to convey information accurately so scientists can refer to the same quantity no matter the location or language.
The metric system and SI Units are standardized, allowing for consistent and accurate measurements that can be understood globally, irrespective of language or location.
Question 3:
The best units for a scientist to measure the distance between cities would be:
kilometers
Kilometers are the SI unit for measuring long distances and are universally understood in the scientific community.