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
zubka84 [21]
3 years ago
7

If you set up an experiment with two different independent variables, then the results would be_____.

Chemistry
1 answer:
Romashka [77]3 years ago
5 0
D. somewhat conclusive
You might be interested in
Acetylene (C2H2), an important fuel in welding, is produced in the laboratory when calcium carbide (CaC2) reacts with water: CaC
Anastaziya [24]

Answer:

There are 1.287 grams of acetylene collected

Explanation:

Total gas pressure = 909 mmHg

Vapor pressure of water = 20.7 mmHg

Pressure of acetylene = 909 mmHg - 20.7 mmHg = 888.3 mmHg

1mmHg = 1 torr

22 ° C + 273.15 = 295.15 Kelvin

Ideal gas law ⇒ pV = nRT

⇒ with p = pressure of the gas in atm

⇒ with V = volume of the gas in L

⇒ with n = amount of substance of gas ( in moles)

⇒ with R = gas constant, equal to the product of the Boltzmann constant and the Avogadro constant (62.36 L * Torr *K^−1 *mol^−1)

⇒ with T = absolute temperature of the gas (in Kelvin)

888.3 torr * 1.024 L = n * 62.36 L * Torr *K^−1 *mol^−1 * 295.15 K

n = 0.04942 moles of C2H2

Mass of C2H2 = 0.04942 moles x 26.04 g/mole = 1.287 g

There are 1.287 grams of acetylene collected

6 0
2 years ago
19 The coefficients in a balanced chemical equation represent(l ) the mass ratios of the substances in the reaction(2) the mole
Andrews [41]
2. The coefficients represent to molar ratios in a balanced equation.
8 0
3 years ago
Why aluminum in 1820 had more value than gold​
bonufazy [111]

Answer:

Aluminum had more value than gold in the 1820s, because it was harder to obtain. Hope this helped :)

4 0
2 years ago
4. The equation for the decomposition of hydrogen peroxide is shown. 2H₂O₂(aq) → 2H₂O(l) + O₂(g) 48.0 25.0 cm³ of aqueous hydrog
Maksim231197 [3]

Answer:

Just add what they equal to hope this helps :)

Explanation:

8 0
1 year ago
Valence electrons are important because these are the only electrons involved with an atom's
Salsk061 [2.6K]
<span>Valence electrons are important because these are the only electrons involved with an atom's chemical reactivity.</span>
3 0
3 years ago
Other questions:
  • (True or False) It would be most appropriate to use the noble gas core [He] when writing the shorthand electron configuration fo
    12·2 answers
  • How does the temperature and pressure change inside the earth, moving downward from the crust to the core?
    11·2 answers
  • Name the following organic compounds.
    5·1 answer
  • Arrange the following aqueous solutions in order of decreasing freezing point: 0.10 m Na3PO4, 0.35 m NaCl, 0.20 m MgCl2, 0.15 m
    13·1 answer
  • If a=1/2(a+b)h,express a in terms of A,b and h. pls solve with step by step ​
    15·1 answer
  • Cual es el numero de oxidacion de la respiración​
    6·1 answer
  • How many moles of Oxygen (O) are in 20.15x10^25 atoms of O?
    7·1 answer
  • Is mercury chloride ionic or covalent
    15·1 answer
  • Europium orbital diagram
    14·1 answer
  • How much cesium (half-life = 2 years) would remain from a 10 g sample after 4 years?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!