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]
3 years ago
8

Which do you use to qualify matter?

Chemistry
1 answer:
zepelin [54]3 years ago
6 0

Answer:

c balance

Explanation:

if you weigh something, you prove it's there.

You might be interested in
A mass of gas has a volume of 4 m3, a temperature of 290 K, and an absolute pressure of 475 kPa. When the gas is allowed to expa
Wittaler [7]

<span>To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At number of moles the value of PV/T is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:</span>

P1V1/T1 = P2V2/T2

P2 = P1 (V1) (T2) / (T1) (V2)

P2 = 475 kPa (4 m^3) (277 K) / (290 K) (6.5 m^3)

P2 = 279.20 kPa

Therefore, the changes in the temperature and the volume lead to a change in the pressure of the system which is from 475 kPa to 279.20 kPa. So, there is a decrease in the pressure.

4 0
4 years ago
Find the percent composition of OXYGEN in Manganese (III) nitrate, Mn(NO3)3.
Minchanka [31]

Answer:

Mn(NO3)3 Molar mass = (54.93) + (3 x 14) + (9 x 16) = 240.93g/mol

Total number of Oxygen atoms in formula = 9

Total mass of oxygen atoms theoretically in the formula = 9x16 = 144g/mol

Oxygen's percentage composition:

(144/240.93) x 100 = 59.7% of the compound is oxygen

6 0
3 years ago
Is ammonia a homogeneous mixture?
ki77a [65]
Yes! since its clear, <span>due to formation of ammonium hydroxide in water.</span>
5 0
4 years ago
in the following reaction, how many grams of benzene (C6H6) will produce 42 grams of CO2? 2C6H6 + 15O2 → 12CO2 + 6H2O
Mrrafil [7]

Answer: -

12.41 g

Explanation: -

Mass of CO₂ = 42 g

Molar mass of CO₂ = 12 x 1 + 16 x 2 = 44 g / mol

Number of moles of CO₂ = \frac{42}{44 g/mol}

= 0.9545 mol

The balanced chemical equation for this process is

2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O

From the balanced chemical equation we see

12 mol of CO₂ is produced from 2 mol of C₆H₆

0.9545 mol of CO₂ is produced from \frac{2 mol C6H6 x 0.9545 mol  CO2}{12 mol CO2}

= 0.159 mol of C₆H₆

Molar mass of C₆H₆ = 12 x 6 + 1 x 6 =78 g /mol

Mass of C₆H₆ =Molar mass x Number of moles

= 78 g / mol x 0.159 mol

= 12.41 g

8 0
4 years ago
Nuclear power plants use uranium, a nonrenwable resource, for fuel​
Crazy boy [7]

True. Although nuclear energy itself is renewable, the material (uranium) used in nuclear power plants is not.

7 0
3 years ago
Other questions:
  • What is the maximum mass of ethyl alcohol you could boil with 1000 j of heat, starting from 22 ∘c?
    15·1 answer
  • A solution with a pH = 13 has approximately how many moles of OH– ions per liter?
    11·2 answers
  • What is the total mass of solute in 1000. grams of a solution having a concentration of 5 parts per million?
    12·2 answers
  • 2. A reaction vessel is charged with hydrogen iodide, which partially decomposes to molecular hydrogen and iodine:2HI (g) H2(g)
    9·1 answer
  • Briefly summarise the death of Jesus Christ​
    15·2 answers
  • Aluminum oxide (Al2O3) and iron (Fe) react according to the following
    5·1 answer
  • A skydiver slows down from 65 m/s to 5 m/s by opening the parachute. If this
    6·2 answers
  • Which of the images shows a phase of matter where there is no specific shape or volume?
    15·1 answer
  • Use the dichotomous key below to identify the cell type.
    9·1 answer
  • Happiness and Atoms<br><br> See picture. Answer questions. Thanks
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!