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
AysviL [449]
2 years ago
8

A characteristic of a substance that may be observed or measured without changing the composition of the substance is a(n) ___ p

roperty.
A)chemical

B)intensive

C)physical
Chemistry
1 answer:
ivann1987 [24]2 years ago
5 0

Answer:

c physical

Explanation:

You might be interested in
Select which of the following are used to determine the age of the Earth. Select 3.
saveliy_v [14]

Meteorites discovered on earth

7 0
2 years ago
Elements that share properties of both metals and nonmetals?
maw [93]
I can help with that!
<span>-Boron (B)
-Silicon (Si)
-Germanium (Ge)
-Arsenic (As)
-Antimony (Sb)
-Tellurium (Te)
-Polonium (Po)
<span>-Astatine (At)</span></span>
7 0
3 years ago
Read 2 more answers
How many grams of Mg are needed to produce 224 g of MgO in the complete reaction of Mg
zmey [24]

Answer:

134.4 g of Mg

Explanation:

reaction:

2Mg + O2 ➡️ 2MgO

1) find the mol of MgO

mol = mass / molar mass

mass = 224 g

molar mass = 24+16 = 40

mol = 224 / 40

= 5.6 moles

2 mol = 5.6 moles

2) find the mass of Mg

mass = mol × molar mass

mol = 5.6

molar mass = 24

mass = 5.6 × 24

= 134.4 g

7 0
3 years ago
Scientists in 1.legal services 2.research and development 3.marketing 4.corporate management
Maslowich

2. research and development

4 0
3 years ago
A 0.245-L flask contains 0.467 mol co2 at 159 °c. Calculate the pressure using the ideal gas law.
lubasha [3.4K]

Answer:

Pressure, P = 67.57 atm

Explanation:

<u>Given the following data;</u>

  • Volume = 0.245 L
  • Number of moles = 0.467 moles
  • Temperature = 159°C
  • Ideal gas constant, R = 0.08206 L·atm/mol·K

<u>Conversion:</u>

We would convert the value of the temperature in Celsius to Kelvin.

T = 273 + °C

T = 273 + 159

T = 432 Kelvin

To find the pressure of the gas, we would use the ideal gas law;

PV = nRT

Where;

  • P is the pressure.
  • V is the volume.
  • n is the number of moles of substance.
  • R is the ideal gas constant.
  • T is the temperature.

Making P the subject of formula, we have;

P = \frac {nRT}{V}

Substituting into the formula, we have;

P = \frac {0.467*0.08206*432}{0.245}

P = \frac {16.5551}{0.245}

<em>Pressure, P = 67.57 atm</em>

4 0
3 years ago
Other questions:
  • A sample of a compound contains 160 g of oxygen and 20.2 g of hydrogen. Give the compound's empirical formula.
    6·2 answers
  • The idea that light can act as packets led to what new field of science?
    5·2 answers
  • Why do ATP molecules store so much energy in their bonds?
    13·1 answer
  • The heat transfer in the picture is most likely:
    8·1 answer
  • Please help! :)
    13·1 answer
  • Which formula represents a molecular compound
    7·1 answer
  • What is the resistance of a fluid on an object?
    6·1 answer
  • What are the three majors factors which affect weather?
    11·2 answers
  • Does the following compound contain a polyatomic ion? CuCl2 *<br> Yes<br> No
    14·1 answer
  • I have a TPO set on me should I disobey it and go see my girl and express my love to her ?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!