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
zhannawk [14.2K]
3 years ago
8

Drag each label to the correct location on the table. Each label can be used more than once. Ms. Evans records the test scores f

or both of her Algebra classes and displays the data in the provided histograms. Given the shape of each distribution, determine which measures of center and spread are appropriate for her to use to summarize the data from each class. interquartile range standard deviation mean median
Chemistry
1 answer:
Sidana [21]3 years ago
8 0

Answer: here's a picture with the answers

Explanation:

You might be interested in
Q Q 3. (08.02 MC)
AnnyKZ [126]

Answer: A volume of 455 mL from 0.550 M KBr solution can be made from 100.0 mL of 2.50 M KBr.

Explanation:

Given: V_{1} = ?,         M_{1} = 0.55 M

V_{2} = 100.0 mL,        M_{2} = 2.50 M

Formula used to calculate the volume of KBr is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute the values into above formula as follows.

M_{1}V_{1} = M_{2}V_{2}\\0.55 M \times V_{1} = 2.50 M \times 100.0 mL\\V_{1} = 455 mL

Thus, we can conclude that a volume of 455 mL from 0.550 M KBr solution can be made from 100.0 mL of 2.50 M KBr.

7 0
3 years ago
Read 2 more answers
How do neutral metal atoms form ions?​
stira [4]

Answer:

Neutral atoms can be turned into positively charged ions by removing one or more electrons. ... Atoms that gain extra electrons become negatively charged. A neutral chlorine atom, for example, contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl- ion with a net charge of -1.

4 0
3 years ago
Acetylene burns in air according to the following equation: C2H2(g) + 5 2 O2(g) → 2 CO2(g) + H2O(g) ΔH o rxn = −1255.8 kJ Given
professor190 [17]

Answer:  -227 kJ

Explanation:

The balanced chemical reaction is,

C_2H_2(g)+\frac{5}{2}O_2(g)\rightarrow 2CO_2(g)+H_2O(g)

The expression for enthalpy change is,

\Delta H=\sum [n\times \Delta H_f(product)]-\sum [n\times \Delta H_f(reactant)]

\Delta H=[(n_{CO_2}\times \Delta H_{CO_2})+ n_{H_2O}\times \Delta H_{H_2O})]-[(n_{C_2H_2}\times \Delta H_{C_2H_2})+(n_{O_2}\times \Delta H_{O_2})]

where,

n = number of moles

\Delta H_{O_2}=0 (as heat of formation of substances in their standard state is zero

Now put all the given values in this expression, we get

-1255.8=[(2\times -393.5)+(1\times -241.8)]-[(1\times \Delta H_{C_2H_2})+(\frac{5}{2}\times 0)]

-1255.8=[(-787)+(-241.8)]-[(1\times \Delta H_{C_2H_2})+(0)]

\Delta H_{C_2H_2}=-227kJ

Therefore, the enthalpy change for C_2H_2 is -227 kJ.

7 0
3 years ago
Which components of an endothermic reaction have a higher heat content?
trasher [3.6K]
The answer is B. products
5 0
3 years ago
Read 2 more answers
What do normal people call it?​
irina [24]

Explanation:

crystal rocks blue ig

.

.

7 0
3 years ago
Other questions:
  • Question seven. Please HELP!
    8·1 answer
  • The images represent three samples of identical gas molecules at the same internal pressure. Which sample would you expect to ha
    5·1 answer
  • Given this equation: 3 MgCl2 + 2 AL - 3 Mg + 2 AlCl3, if 278 grams of magnesium chloride
    7·1 answer
  • Convert 12.8 cm to km.
    9·2 answers
  • 1. Which is not an example of a physical change to a wooden stick?
    12·1 answer
  • An 8 oz. bottle of energy drink contains 6.0 g of protein, 2.0 g of fat, and 16.3 g of carbohydrate. The fuel value of this ener
    13·1 answer
  • Why can characteristics properties be used to identify unknown substances
    11·1 answer
  • In an atomic model that includes a nucleus, positive charge is
    15·1 answer
  • A 5.0 L sample of gas at 300. K is heated to 600. K. What will the new volume of the gas be?
    11·1 answer
  • THE GEOCENTRIC MODEL
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!