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
Vadim26 [7]
2 years ago
11

Someone help out plz?

Chemistry
1 answer:
Fiesta28 [93]2 years ago
7 0
The temperatures increased
You might be interested in
HELP I HAVE 14 MINUTES!!
ki77a [65]

Answer:

2 one

Explanation:

is right coz I think

4 0
3 years ago
Read 2 more answers
What are some questions about light pollution?
devlian [24]

Answer:

is there a way of reducing light pollution at the edges of a forest work?

6 0
2 years ago
Ammonia NH3 is a common ingredient. If you have a cleaning agent containing 3.47 mol NH3, how many grams of NH3 are in the clean
8090 [49]
NH3 has a Molar mass of 17g
3.47 * M(NH3) = 58.99g of NH3 in the cleaning agent
6 0
3 years ago
Carry out the following operations as if they were calculations of experimental results and express each answer in standard nota
Shalnov [3]

Answer:

1. 10.6\; \rm m (one decimal place.)

2.0.79\; \rm g (two decimal places.)

3. 16.5\;\rm cm^2 (three significant figures.)

Explanation:

<h3>1.</h3>

The first and second expressions are additions and subtractions. When adding two numbers, the accuracy of the result is given by the number of decimal places in it. The result should have as many decimal places as the input with the least number of decimal places.

For example, in the first expression:

  • 5.6792\;\rm m has four decimal places.
  • 0.6\; \rm m has only one decimal place.
  • 4.33\; \rm m has two decimal places.

Therefore, the result should be rounded to one decimal place. Note that these units are compatible for addition, since they are all the same. The result should have the same unit (that is: \rm m.)

Therefore:

\rm 5.6792\; m + 0.6\; m + 4.33\; m \approx 10.6\; \rm m. (Rounded to one decimal place.)

<h3>2.</h3>

Similarly:

  • \rm 3.70\; \rm g has two decimal places.
  • 2.9133\; \rm g has four decimal places.

Therefore, the result should be rounded to two decimal places. Its unit should be \rm g (same as the unit of the two inputs.)

\rm 3.70\; g - 2.9133\; g \approx 0.79\; \rm g. (Rounded to two decimal places.)

<h3>3.</h3>

When multiplying two numbers, the accuracy of the result should be based on the number of significant figures in it. The result should have as many significant figures as the input with the least number of significant figures. In this expression:

  • 4.51\; \rm cm has three significant figures.
  • 3.6666\; \rm cm has five significant figures.

Therefore, the result should have only three significant figures.

The unit of the result is supposed to be the product of the units of the input. In this expression, that unit will be \rm cm \cdot cm, which is occasionally written as \rm cm^2.

\rm 4.51 \; cm \times 3.6666 \; cm \approx 16.5\; \rm cm^2. (Rounded to three significant figures.)

7 0
3 years ago
One phosphorus, three chlorine, one oxygen
4vir4ik [10]
Phosphoryl chloride :

POCl3
<span>
hope this helps!.

</span>
5 0
3 years ago
Other questions:
  • Suppose you held two magnets a short distance apart,then let go. what would happen?
    7·2 answers
  • The main type of attractive forces between molecules of ammonia (nh3) are ________. ionic bonds hydrogen bonds polar covalent di
    7·1 answer
  • The summer is caused by __________.
    15·1 answer
  • Energy release is to condensation as energy input is to _________.
    10·2 answers
  • If 42.389 g of Fe3Br2 is dissolved in enough water to give a total volume of 750 mL, what is the molarity of the solution
    9·1 answer
  • Using PEP or PrEP can reduce the chances of becoming infected for a person exposed to HIV.
    10·2 answers
  • How many hydrogen atoms are in 89.5 g of<br> C6H6 ?<br> Answer in units of atoms.
    8·1 answer
  • Lana is testing her hypothesis that marigolds grow faster in red light than in yellow light. If the plants in yellow light grow
    14·1 answer
  • Elemnt name, atomic number, atomic mass, protons, neutrons, elsctrons 1-10
    7·1 answer
  • How do the equations differ for the neutralization reaction between a strong acid/strong base and a weak acid/strong base
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!