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
Nadya [2.5K]
3 years ago
8

Round off the following number to 3 digits 34,560​

Chemistry
1 answer:
Vikki [24]3 years ago
6 0

Answer:

3.46x10⁴

Explanation:

Hello,

In this case, we can see that the number 34,560 has five significant figures, it means that if we want to write it with three, we must take the 3, 4 and 5 only. Nevertheless, since the 6 after the five is greater than 5, we can round such five to 6, so we obtain:

346

However, the decimal places cannot get lost, therefore, we move the given thousand  to the three, so the number turns out:

3.46x10⁴

Best regards.

You might be interested in
What three tests must all theories pass to be considered a "proven" theory?
VladimirAG [237]

 In order to become a scientific theory the three categories that it must pass are the following: 


1) Can the phenomena be recreated in a laboratory setting? 


2) Can variables be changed, yet still result in like observations? 


3) Is the phenomena truly natural or was it the result of a man-made force enacting upon it?

7 0
3 years ago
Is radium flammable?
rewona [7]

Answer:

no

Explanation:

Radium is silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. Radium is luminescent, corrodes in water to form radium hydroxide. Although is the heaviest member of the alkaline-earth group it is the most volatile.

4 0
3 years ago
In a ________ change, such as a change of state, the substance as a whole changes, but its underlying structure remain the same.
pav-90 [236]

Answer:

Im pretty sure it is chemical change

4 0
2 years ago
What is the pressure of 1.50 moles of a gas in a 30.0L tank at a temperature of<br> 285K?
julia-pushkina [17]

The pressure of the gas : 1.1685 atm

<h3>Further explanation</h3>

In general, the gas equation can be written  

\large {\boxed {\bold {PV = nRT}}}

where  

P = pressure, atm  

V = volume, liter  

n = number of moles  

R = gas constant = 0.08206 L.atm / mol K  

T = temperature, Kelvin  

n=moles=1.5

V=volumes = 30 L

T=temperature=285 K

The pressure :

\tt P=\dfrac{nRT}{V}\\\\n=\dfrac{1.5\times 0.082\times 285}{30}\\\\P=1.1685~atm

7 0
2 years ago
How many atoms is 2.34 moles of titanium?
BartSMP [9]
2.34 moles titanium x (6.022 x 10^23)/1 mole titanium = 1.41 x 10^24
7 0
2 years ago
Read 2 more answers
Other questions:
  •  HELP ASAP!!!!!
    11·2 answers
  • What is the molarity of a solution that contains 14 moles of solute and 2 liters of solution?
    13·1 answer
  • How many moles of NaCl are present in 530 ml of a 1.52m NaCl solution
    10·1 answer
  • Nts) How many moles of oxygen gas are needed to react completely with 23.6 mL Mg, which has a density of 1.74 g/mL? unbalanced e
    14·1 answer
  • What's another way to increase the solubility of a solid solute without increasing the temperature?
    7·1 answer
  • Which atom has a configuration that ends in 5s 2?
    6·1 answer
  • A flashbulb of volume 2.70 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 30.0 °C. How many grams of O2(g) doe
    14·1 answer
  • A 1.0mol sample of which of the following compounds has the greatest mass?
    9·1 answer
  • 1. Al+3 has how many neutrons?<br><br>2. thorium-230 has how many protons, neutrons and electrons?
    13·1 answer
  • 32. Why do you think the Cl-ion is larger than a neutral Cl atom?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!