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maks197457 [2]
1 year ago
9

What graph would you use if you wanted to compare similar data for several individual items or events?

Chemistry
2 answers:
Soloha48 [4]1 year ago
5 0

Answer:

A. Bar graph

Explanation:

Bar graphs are used to compare things between different groups or to track changes over time. 

Lena [83]1 year ago
4 0

Answer:

option a, bar graph

Explanation:

- a graphic means of quantitative comparison by rectangles with lengths proportional to the measure of the data or things being compared

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Help please its science
Nookie1986 [14]

Answer: any answer choices

Explanation:

6 0
3 years ago
What pressure will be exerted by 25 g of CO2 at temperature of 25°C and a volume of .50 L?
Grace [21]

Answer:

P = 27.9 atm

Explanation:

Given data:

Mass of CO₂ = 25 g

Temperature = 25°C (25+273.15 K = 298.15 K)

Volume of gas = 0.50 L

Pressure of gas = ?

Solution:

Firs of all we will calculate the number of moles of gas,

Number of moles = mass/molar mass

Number of moles = 25 g/ 44 g/mol

Number of moles = 0.57 mol

Pressure of gas :

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

P × 0.50 L = 0.57 mol × 0.0821 atm.L/ mol.K  × 298.15 K

P = 13.95 atm.L/ 0.50 L

P = 27.9 atm

4 0
3 years ago
Which postmortem parameter reaches a maximum at 12 hours and is gone within 36 to 48 hours?1.rigor mortis2.cloudiness of the eye
Olenka [21]
The cloudiness of the eyes increases to a maximum and then decreases. This is because initially, after death, all the muscles relax, dilating the pupil. Some time later, rigor mortis sets in, contracting the pupil. Thus, the cloudiness fades.
3 0
3 years ago
Convert 19 kcal into joules
il63 [147K]

19~ \text{kcal} = 19 \times 1000 ~\text{cal } = 19000~ \text{cal} = 19000 \times 4.184~ \text{J} = 79496~ \text{J}

7 0
2 years ago
Temperature also affects the motion of atoms in a gas. Given what you know about temperature, pressure, and volume, which statem
vampirchik [111]

Answer:

C) As a gas is heated, the pressure decreases.

Explanation:

From the choices given, the statement that "as a gas is heated, the pressure decreases is false".

When gases are heated, their molecules expands and the volume of the gas increases. In a fixed container, the pressure of the gases will also increases.

  • Gases lack internal cohesion and very weak to no intermolecular forces binding them together.
  • When they are subjected to heat, they gain more energy(kinetic energy) which causes them to begin to spread out.
  • Thus, they take up even more space allowing volume to increase appreciably.

3 0
3 years ago
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