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
Svetlanka [38]
3 years ago
15

1. How many Chromium atoms are found in 25.8 milligrams of Chromium?​

Chemistry
2 answers:
solong [7]3 years ago
8 0

Answer:

Chromium is a steel-gray, lustrous, hard metal that takes a high polish, is fusible with difficulty, and is resistant to corrosion and tarnishing.

The most common oxidation states of chromium are +2, +3, and +6, with +3 being the most stable. +4 and +5 are relatively rare. Chromium compounds of oxidation state 6 are powerful oxidants.ion:

givi [52]3 years ago
7 0

Answer: 51.9961 g/mol, don't know if it helps :)

Explanation:

You might be interested in
If you add heat to a solid, the particles will... (choose all that apply) *
elena55 [62]

Answer: Expand and speeds up

Explanation:

5 0
3 years ago
An isotope of an element has the following symbol: 131 I How many electrons does it
WINSTONCH [101]

Answer:

D

Explanation:

sorry bout ealier

5 0
2 years ago
Natural gas is a mixture of many substances, primarily CH₄, C₂H₆, C3H8, and C4₄H₁₀. assuming that the total pressure of the gase
olchik [2.2K]

Answer:

A. The partial pressure for CH4 = 0.0925atm

B. The partial pressure for C2H6 = 0.925atm

C. The partial pressure for C3H8 = 0.346atm

D. The partial pressure for C4H10 = 0.115atm

Explanation:

Total pressure = 1.48atm

Total mole = 0.4+4+1.5+0.5=6.4

A. Mole fraction of CH4 = 0.4/6.4 = 0.0625

The partial pressure for CH4 = 0.0625 x 1.48 = 0.0925atm

B. Mole fraction of C2H6 = 4/6.4 = 0.625

The partial pressure for C2H6 = 0.625 x 1.48 = 0.925atm

C. Mole fraction of C3H8 = 1.5/6.4 = 0.234

The partial pressure for C3H8 = 0.234 x 1.48 = 0.346atm

D. Mole fraction of C4H10 = 0.5/6.4 = 0.078

The partial pressure for C4H10 = 0.078 x 1.48 = 0.115atm

7 0
3 years ago
3. The substance that is formed or we finish up with are called.​
skad [1K]
Products. I’m not 100% sure because I don’t fully understand what your asking but if you are talking as in chemical reactions, the answer is a product.
6 0
2 years ago
What causes a liquid to change into vapor
motikmotik

Answer:

The molecules in the water become more separated due to heat.

8 0
3 years ago
Other questions:
  • The ph of a solution prepared by mixing 50.0 ml of 0.125 m naoh and 40.0 ml of 0.125 m hno3 is ________.
    15·1 answer
  • What causes the emission of radiant energy that produces characteristic spectral lines for a given element?​
    6·2 answers
  • A 6.00 g sample of calcium sulfide is found to contain 3.33 g of calcium. what is the percent by mass of sulfur in the compound?
    9·1 answer
  • Diets that are high in ____ are associated with an increased incidence of hypertension.
    12·1 answer
  • Why are models used for understanding cells
    14·1 answer
  • In a reaction between calcium hydroxide, Ca(OH)2, and lithium sulfide, Li2S, which of the
    9·1 answer
  • How do you know that an acid based reaction is completely neutralized?
    5·1 answer
  • How many moles are in 28g of CO2?​
    7·1 answer
  • Answer fast my H.W is hard
    7·1 answer
  • 6) A 14.5 g sample of sodium chloride reacts with excess fluorine gas according to
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!