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
mart [117]
3 years ago
15

Solve the problems. Express your answers to the correct number of significant figures.

Chemistry
2 answers:
skad [1K]3 years ago
7 0

Ans: 1) 1.41

        2) 119.3

While adding two numbers, the rule of significant figures requires that the number of decimal places in the final answer is equal to that of the term with the least decimal places

In the given examples:

1) 0.09 - has 2 decimal places

1.324- has 3 decimal places

Sum = 0.09 + 1.324 = 1.414

Round off to 2 decimal places = 1.41

2) 41.0 - has 1 decimal place

78.3- has 1 decimal place

Sum = 41.0 + 78.3 = 119.3

Final answer will also have 1 decimal place = 119.3

Scilla [17]3 years ago
4 0

1.    1.141

2.  119.3

HOPE THIS HELPS.


You might be interested in
Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hyd
cupoosta [38]

Answer:

my answer is num:3 Hydrogen and oxygen.

8 0
3 years ago
This formula equation is unbalanced. P4(s) + Cl2(g) mc030-1.jpg PCl3(l) Which coefficient should be placed in front of PCl3 to b
Sunny_sXe [5.5K]
To balance a chemical reaction, we need to remember that the number of each atom in the reactant and the product side of the equation should be equal. So, from the reaction <span>P4(s) + Cl2(g) = PCl3(l), there are 4 P atoms in the reactant, the P atoms in the prodcut side should be 4 as well. We balance as follows:

</span> P4(s) + 6Cl2(g) = 4PCl3(l)
<span>
Therefore, the coefficient of the PCl3 should be 4.

</span>
6 0
4 years ago
Describe how each way to separate a mixture works Magnetic attraction: Evaporation: Filtration: Distillation:
jeka94

Answer:

Evaporation is great for separating a mixture (solution) of a soluble solid and a solvent. The process involves heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue. ... This method is best for separating a liquid from a solution.

Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Due to the magnets, magnetic particles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an ore concentrate).

Explanation:

That's your answer.

5 0
3 years ago
Convert 26.8 grams of water into moles
andrezito [222]

Answer:1.4876260596560256

Explanation:

7 0
3 years ago
Read 2 more answers
13
tankabanditka [31]

Answer:

Electrical

Explanation:

7 0
3 years ago
Other questions:
  • What is the frequency (in reciprocal seconds) of electromagnetic radiation with a wavelength of 1.07 cm?
    9·2 answers
  • What are six characteristics all living things share
    7·2 answers
  • What is the rate law for the uncatalyzed reaction?
    13·2 answers
  • Which of the following does not illustrate a complete circuit?
    12·1 answer
  • an airplane flies with a constant speed of 540 miles per hour how long will it take to travel a distance of 1350 MI
    11·2 answers
  • ¿Cómo consideras que sería la vida actual sin la ciencia?
    11·1 answer
  • You are determining the mass of an object using a triple beam balance. When the pointer is lined up with the zero mark, the ride
    5·2 answers
  • What is known as a double covalent bond?
    12·1 answer
  • Earth magnetic poles are not in the same place as the geographic poles. True or false
    14·1 answer
  • Why does the water seem cooler in the day and warmer at night?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!