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
Juliette [100K]
4 years ago
10

What is one important step to complete before starting a laboratory experiment?

Chemistry
2 answers:
gtnhenbr [62]4 years ago
6 0

Answer:

ask the teacher

Explanation:

took the test got a 90 i got something wrong but it was a hard question-

Nimfa-mama [501]4 years ago
3 0

Answer:

Ask the teacher

Explanation:

Ask if you have to clean up or if you are not prepared for an experiment

You might be interested in
A helium-filled weather balloon has a volume of 512 L at 18.9°C and 756 mmHg. It is released and rises to an altitude of 2.14 km
vazorg [7]

633.97 L

Explanation:

Well use the combined gas law;

P₁V₁T₁ = P₂V₂T₂

We need to change the temperatures into Kelvin;

18.9°C= 292.05 K

5.9°C = 279.05 K

756 * 512 * 292.05 = 639 * V₂ * 279.05

113,044,377.6 = 178,312.95 V₂

V₂ = 113,044,377.6 / 178,312.95

V₂ = 633.97 L

3 0
3 years ago
Read 2 more answers
If an object absorbs all colors but blue, what color would it appear to be?
denis-greek [22]
The color would be blue
5 0
4 years ago
Read 2 more answers
What is the effect of pressure on boiling point??? 1 mark answer plsss
d1i1m1o1n [39]

Answer:

direct effect

Increasing the pressure increases the boiling point and decreasing the pressure decreases the boiling point

8 0
3 years ago
Read 2 more answers
What is the period number of krypton
RUDIKE [14]

The period number of krypton is 4

4 0
3 years ago
Read 2 more answers
How many valence electrons are in an atom of phosphorus? (atomic number 15) (1 point)?
densk [106]
There are 5 valence electrons in a atom of phosphorus.
5 0
3 years ago
Other questions:
  • A metal cylinder is placed in a graduated cylinder which has been filled with water to the 70.0 mL mark. The water level rises t
    14·2 answers
  • Particles of light are known as​
    11·2 answers
  • Four moles of Argon gas are at a pressure of 1.90 atm, and the temperature is 50 degrees C. What is the volume of the gas?
    14·1 answer
  • What is the term for a substance that acts on proton donor in one reaction and as a proton acceptor in another?
    12·1 answer
  • Will give you know what to first correct answer
    7·1 answer
  • Which of the following is the largest volume? 4.0 x 101 m3 3.8 x 107 cm3 3.8 x 105 dm3 3.8 x 108 mm3
    13·1 answer
  • Which formula contains a metal and a nonmetal? SO2 MgO CO H2O
    15·2 answers
  • Zinc + Hydrochloric acid — Zinc chloride + Hydrogen [Zn +2 HCI → ZnCl2 + H2] is an
    11·1 answer
  • How do core electrons relate to the ionization energy of the atom?
    10·1 answer
  • A model for a potential chemical reaction is shown here. Evaluate the model and the reaction shown. Which statements are correct
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!