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
Dominik [7]
3 years ago
6

Which are precautions to take when working with heat and fire? Check all that apply.

Chemistry
1 answer:
Oduvanchick [21]3 years ago
3 0
Wear face mask and holy the conical flask or test tube away from your face and body and dont put it on directly on fire or it
You might be interested in
This pendulum is suspended on a string. The balanced forces of gravity and the tension force within the string are holding the p
GuDViN [60]

Answer:

The pendulum will begin to swing in the direction of the unbalanced force

Explanation:

The action of an unbalanced force on a pendulum will cause the pendulum to go into oscillation.

It must be stated that an unbalanced force causes acceleration of an object, in the direction of that force. Hence, unbalanced forces always set an object in motion.

5 0
4 years ago
Compare bleach and mercury
Sauron [17]
Bleach is a common disinfectant used in laboratory settings.
mercury is a planet.
8 0
3 years ago
Read 2 more answers
A concrete barrier in a parking lot a structure of mass, frame, or shell? Which one would it be?
slavikrds [6]
Thinking frame not 100% sure
8 0
3 years ago
Darkness conceals hazards such as
Studentka2010 [4]
Same I agree with this mans statement good job bro bro I'm just trynna finish this thing so I got 100 on this app
7 0
4 years ago
A certain alcohol contains only three elements, carbon, hydrogen, and oxygen. Combustion of a 20.00 gram sample of the alcohol p
bagirrra123 [75]

The empirical formula is C₂H₆O.

We must calculate the <em>masses of C, H, and O</em> from the masses given.

<em>Mass of C</em> =38.20 g CO₂ × (12.01 g C/44.01 g CO₂) = 10.424 g C

<em>Mass of H</em> = 23.48 g H₂O × (2.016 g H/18.02 g H₂O) = 2.6268 g H

<em>Mass of O</em> = Mass of compound - Mass of C - Mass of H

= (20.00 – 10.424 – 2.6268) g = 6.9487 g

Now, we must <em>convert these masses to moles</em> and <em>find their ratios</em>.

From here on, I like to summarize the calculations in a table.

<u>Element</u>  <u>Mass/g</u>    <u>Moles</u>    <u>Ratio</u>  <u>Integers</u>  

     C        10.424    0.8680  1.999        2

     H         2.6268  2.606    6.001        6

     O        6.9487  0.4343    1                1

The empirical formula is C₂H₆O.

7 0
3 years ago
Other questions:
  • Lakshmi has a sample of ammonium nitrate (NH4NO3) that has a mass of 40.10 g. She knows that the molar mass of NH4NO3 is 80.0432
    8·1 answer
  • Carefully looking at an object or process
    5·1 answer
  • Consider the following reaction: 2CH3OH ---&gt; 2CH4+O2 delta H= +252.8kJ. Calculate the amount of heat transferred when 22.0g o
    5·1 answer
  • A double replacement reaction occurs when aqueous potassium iodide and aqueous mercury (I) nitrate are mixed. What is the correc
    6·1 answer
  • 2) Write a hypothesis for the Observation and question below. Be sure to use the proper “If…, then…” format in your answer. Iden
    11·1 answer
  • ____ N2 + ___ H2 --&gt; ____ NH3<br> Reaction :
    10·1 answer
  • Balance this equation. Pb(NO3)2(aq)+NaCl(aq) -&gt; NaNO3(aq)+PbCl2(s)
    13·1 answer
  • If 46.3 grams of acetylene are required to run a carbide lamp for 8 hours, how many moles of water are required
    12·1 answer
  • Four forces are exerted on each of the two objects shown below:
    8·1 answer
  • In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!