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
AveGali [126]
2 years ago
15

How long is a bench? Select the best estimate.

Chemistry
1 answer:
Alenkinab [10]2 years ago
8 0

Answer:

4 meters

Explanation:

4 centimeters and millimeters are too small, while 4 kilometers is too large.

You might be interested in
The level of a liquid (i.e. distilled water) in laboratory glassware is determined by sight. The level corresponds to a specific
Sati [7]

Answer:

c. when the meniscus is between marks, estimate the reading to the nearest tenth of a division (ie, estimate to 0.01 mL if buret has 0.1 ml divisions)

Explanation:

When we put a liquid in a pipette, we can see that the surface of that liquid will have a curve. This curve is called the meniscus and it has the correct volume that an aqueous solution has. However, for this, it is necessary that the meniscus is observed at eye level and that its edges and center are clearly visible.

7 0
2 years ago
The critical role of the atmosphere is best described as ?
olchik [2.2K]

Answer:

I would say to keep the oxygen we breathe in or to filter out the bed uv rays from the sun like radiation.

Explanation:

im guessing

5 0
3 years ago
For the oxidation-reduction reaction equation given here 4ga+p4 indicate how many electrons are transferred in the formation of
sergij07 [2.7K]
The reaction given is:

4Ga + P4 ---> 4GaP

The oxidation number of the reactants is zero, because they are pure elements.

The P in compounds may have oxidation states 3- or 5-. Gallium may only have oxidation state 3+.

Then, to be neutral in GaP the oxidation states are 3+ for Ga and 3- for P.

And the transference of electrons can be see in this oxidation - reduction equations:

Ga (0) - 3 e-    ----> Ga (3+)

P (0) + 3e- ---> P (3-)

So, for one formula unit, 3 electrons have been transfered from each Ga atom to P atom to form one GaP unit.

Answer: 3 electrons.
3 0
3 years ago
Can you store cuso4 in an aluminum container? explain your reasoning
mash [69]

We can store the copper sulphate solution in alumiun container, if cover on alumiun is present.

<h3>Can you store cuso4 in an aluminum container?</h3>

Aluminium is more reactive than copper so the Aluminium will displace copper sulphate from its solution by reacting with it but if there is cover on the aluminium then the alumium can't react with copper.

So we can store the copper sulphate solution in alumiun container.

Learn more about container here: brainly.com/question/11459708

3 0
2 years ago
HELP WILL GIVE BRANLIEST
Elodia [21]

Answer:

Boron (B) Atomic Mass: 10.811

Explanation:

The number of protons and electrons are the same, always. You can find the atomic mass by looking at the periodic table for that atom: 10.811

6 0
2 years ago
Other questions:
  • Who is credited with creating the first accurate model of DNA
    15·2 answers
  • What happens to the total current provide by a battery as bulds add to a parallel Circuit
    14·1 answer
  • How many ml of 0.01-m naoh will be required to titrate 0.061-g of khp to it's endpoint?
    10·1 answer
  • Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is for
    5·1 answer
  • What would be the original temperature of a gas that has a volume of 2.0 L and a pressure of 2.0 ATM and an unknown temperature
    7·1 answer
  • Balancing Chemical Equations
    7·1 answer
  • How many grams of CaCl2 are need to prepare 250 mL of a 0.15M solution?
    6·1 answer
  • For the reaction Cu2S(s)⇌2Cu+(aq)+S2−(aq)Cu2S(s)⇌2Cu+(aq)+S2−(aq), the equilibrium concentrations are as follows: [Cu+]=1.0×10−5
    13·1 answer
  • Phosphorus reacts with oxygen to produce different kinds
    11·1 answer
  • Please help this test is do in 13 mins.(Science)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!