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
astra-53 [7]
3 years ago
11

What is the solution to the problem expressed to the correct number of significant figures? 2.13 + 1 = ?

Chemistry
1 answer:
Paha777 [63]3 years ago
7 0

So,

With addition, we the last digit we keep will be the one which is known for both individual values.

We know 2.13 to the hundredths, but we only know 1 to the ones.  Therefore, we will round off in the ones place.

2.13 + 1 = 3.13 (unrounded)

= 3 (rounded)

Hope this helps!

You might be interested in
Which of following statements is true about scientific knowledge? Scientific ideas are not subject to change, so scientific know
Romashka [77]

Answer:

The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions. To develop a deeper understanding, students need to investigate the context of the time in which science ideas were developed.

Explanation:

7 0
3 years ago
Read 2 more answers
Can someone please comfort me because i feel like i am going to cry and now i am crying so much right now, maybe i should cut ag
olya-2409 [2.1K]
Please dont harm yourself. whatever youre going through, you will get through it. i wish i could give you hug. you deserve so much happiness. but please dont hurt yourself.
3 0
3 years ago
Read 2 more answers
Sodium chloride procedure​
MAVERICK [17]

Answer: Dissolve approximately 3 mg of Sodium Chloride in 2 mL of water.

Add 0.4 mL of silver nitrate TS and acidify with diluted nitric acid.

8 0
2 years ago
Which of the following could be considered a scientific statement?
Taya2010 [7]
X rays have a lower frequency than microwaves would be the scientific statement.
7 0
3 years ago
Read 2 more answers
At 298 K and 1 atm, bromine is a liquid with a high vapor pressure, whereas chlorine is a gas. This provides evidence that, unde
Galina-37 [17]

Explanation:

In liquids, the molecules are held by less strong intermolecular forces of attraction as compared to solids. Due to which they are able to slide past each other. Hence, they have medium kinetic energy.

In gases, the molecules are held by weak Vander waal forces. Hence, they have high kinetic energy due to which they move rapidly from one place to another leading to more number of collisions.

So, when at 298 K and 1 atm Br_{2} exists in liquid state and Cl_{2} exists as a gas then it means there occurs strong force of attraction between the molecules of Br_{2} due to which it exists in liquid form.

Thus, we can conclude that at 298 K and 1 atm, bromine is a liquid with a high vapor pressure, whereas chlorine is a gas. This provides evidence that, under these conditions, the forces among Br_2 molecules are greater than those among Cl_2 molecules.

3 0
3 years ago
Other questions:
  • What is fry's reagent used for?
    10·1 answer
  • A horizontal tube carrying hot water has a surface temperature of 355.4 K and an outside diameter
    12·1 answer
  • a student balanced the chemical equation for the reaction of magnesium with oxygen by writing Mg + O2 ----> MgO2. What is wro
    12·1 answer
  • Balance the reactions which form ions. Choose "blank" if no other coefficient is needed. Writing the symbol implies "1."
    13·2 answers
  • G determine the concentration of an hbr solution if a 45.00 ml aliquot of the solution yields 0.6485 g agbr when added to a solu
    15·1 answer
  • One liter of air contains about 0.21 L of oxygen. When filled, the human lungs hold about 6.0 L of air. How much oxygen is in th
    8·1 answer
  • Is supports combustion a chemical or physical property
    9·2 answers
  • Whyyyyyy you do this to meeeee I’m soo sad that I Can’t talk to my best friend on Brainly.com
    12·1 answer
  • What is the process of a gas changing back into a liquid called<br><br> PLEASEEEEEE HELP MEEEEEEE
    7·2 answers
  • What volume (ml) of fluorine gas is required to react with 1. 28 g of calcium bromide to form calcium fluoride and bromine gas a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!