1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
2 years ago
10

A scientist compares two samples of colorless gas present at the beginning and end of a lab process. She wants to determine whet

her a chemical reaction has occurred. She tests whether each gas is flammable. Neither has burns when lit. She then measures the amount of gas. Sample one has a volume on 53 cubic cm and a mass of 0.10g. Sample two has a volume of 39 cubic cm and a pass of 0.05g. What are the scientist's findings?
Physics
2 answers:
kompoz [17]2 years ago
8 0

Joseph Priestley was born in Yorkshire, the eldest son of a maker of wool cloth. His mother died after bearing six children in six years. Young Joseph was sent to live with his aunt, Sarah Priestley Keighley, until the age of 19. She often entertained Presbyterian clergy at her home, and Joseph gradually came to prefer their doctrines to the grimmer Calvinism of his father. Before long, he was encouraged to study for the ministry. And study, as it turned out, was something Joseph Priestley did very well.

Aside from what he learned in the local schools, he taught himself Latin, Greek, French, Italian, German and a smattering of Middle Eastern languages, along with mathematics and philosophy. This preparation would have been ideal for study at Oxford or Cambridge, but as a Dissenter (someone who was not a member of the Church of England) Priestley was barred from England's great universities. So he enrolled at Daventry Academy, a celebrated school for Dissenters, and was exempted from a year of classes because of his achievements.

After graduation, he supported himself, as he would for the rest of his life, by teaching, tutoring and preaching. His first full-time teaching position was at the Dissenting Academy in Warrington. (Although obviously brilliant, original, outspoken and, by one report, of "a gay and airy disposition," Priestley had an unpleasant voice and a sort of stammer. That he made a living through lectures and sermons is further evidence of his extraordinary nature.)


 https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/josephpriestleyoxygen.html

melamori03 [73]2 years ago
8 0

Answer:Density calculations show that the gases are different, so a chemical reaction occurred.

Explanation: correct

You might be interested in
A bicycile traves with an average velocty 15km/h north for 20min what is his displasment​
Mila [183]

Answer:

5000 m equivalent to 5 Km

Explanation:

Average velocity =\frac{Displacement}{Time}

so, Displacement =Average velocity × time

We should convert Km/h to m/s so Km/h ⇒ \frac{1000}{60*60} m/s, also convert time to second so, 20min ⇒(20* 60)seconds

Displacement = (15 ×\frac{1000}{60*60}) × (20×60) =5000m OR 5Km

6 0
2 years ago
(3) A Ninja motorcycle is moving down I95 at 160 miles per hour (72 m/s) and a cop uses a radar gun to measure the speed. Using
Virty [35]

Answer:

it does use it at doppler

Explanation:

My dad told me the hes a cop so yw

5 0
2 years ago
You perform the Hooke's Law experiment and create a plot of Displacement vs. Force. You add a linear fit and find the following
balandron [24]

Answer: 0.192 N/m

Explanation:

Well, generally when a Hooke's Law experiment is performed the plot is in fact Force vs Displacement, being the Force (in units of Newtons) in the Y-axis and the Displacement (in units of meters) in the X-axis.

In addition, if we add a linear fit the resultant equation will be the Line equation of the form:

Y=mX+b

Where m=\frac{Y_{2}-Y_{1}}{X_{2}-X_{1}} is the slope and b is the point where the line intersects the Y-axis.

So, if the equation is:

Y=0.192X+0.011

The slope of this line is 0.192 N/m which is also the spring constant k.

7 0
3 years ago
What is the best piece of advice you have ever received or given?
Afina-wow [57]

Answer:Your life is your responsibility.

Explanation:

4 0
3 years ago
Read 2 more answers
A position vector in the first quadrant has an x-component of 18 m and a magnitude of 30 m. What is the value of its y-component
Snezhnost [94]

Answer:

The value is 24meters

Explanation:

Using

r= xi+yj

To get the magnitude of vector x

We say

/r/= √x²+y²

So

30²= √18² + y²

y= √576

Y= 24m

7 0
2 years ago
Other questions:
  • g A ray of light is incident on a flat reflecting surface and is reflected. If the incident ray makes an angle of 28.7° with the
    9·1 answer
  • URGENT HELP PLEASE WILL AWARD BRAINLIEST!!!!!
    15·1 answer
  • your friend is bragging about his motorcycle. he claims that it can go from a stop in position to 50 mph in three seconds. He is
    15·1 answer
  • When an automobile rolls on pavement, the instantaneous center of one of its wheels is located on the wheel axle. True o False
    9·1 answer
  • What is the mass of a cart that accelerates at 3.0 m/s if a 0.5 N force is applied?
    6·1 answer
  • What is also known as a ferromagnetism
    10·1 answer
  • A car is traveling at 19m/s. It slows to a stop at a constant rate over 4.2 seconds. How far did the car travel during the 4.2se
    8·1 answer
  • If element "X" is heavier than element "Y" then...
    12·1 answer
  • A vertical cylinder with a heavy piston contains air at 300 K. The initial pressure is 2.0 x 105 Pa and the initial volume is 0.
    9·1 answer
  • a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 18 hours
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!