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
svetoff [14.1K]
3 years ago
13

Select the message that most accurately fits the passage.

Chemistry
2 answers:
Xelga [282]3 years ago
7 0

Answer:

B. Black holes are incredibly powerful cosmic forces.

Explanation:

the passage support this.

Kaylis [27]3 years ago
4 0

Answer:The answer is B

Explanation: I just take I’m sure bc I just got it right

You might be interested in
Describe briefly how to obtain the radial probability of an electron​
Kaylis [27]

Explanation:

The radial distribution function gives the probability density for an electron to be found anywhere on the surface of a sphere located a distance r from the proton. Since the area of a spherical surface is 4πr2, the radial distribution function is given by 4πr2R(r)∗R(r).

I

8 0
2 years ago
What is present in the glucose molecule that is missing in the carbon dioxide molecule?
rusak2 [61]
Hydrogen .<span>carbon dioxide is CO2 and </span><span>glucose is C6H12O6</span>
3 0
4 years ago
Help me pls!!!!!!!!!!!!!!!
tankabanditka [31]
The answer is: 2 NH3 —> N2 + 3 H2
6 0
3 years ago
How many grams of water can be produced from 4.6 grams of Hydrogen and 7.3 grams of Oxygen?
12345 [234]

Answer:

The answer to your question is 8.21 g of H₂O

Explanation:

Data

mas of water = ?

mass of hydrogen = 4.6 g

mass of oxygen = 7.3 g

Balanced chemical reaction

                   2H₂  +  O₂  ⇒   2H₂O

Process

1.- Calculate the atomic mass of the reactants

Hydrogen = 4 x 1 = 4 g

Oxygen = 16 x 2 = 32 g

2.- Calculate the limiting reactant

Theoretical yield = H₂/O₂ = 4 / 32 = 0.125

Experimental yield = H₂/ O₂ = 4.6/7.3 = 0.630

From the results, we conclude that the limiting reactant is Oxygen because the experimental yield was higher than the theoretical yield.

3.- Calculate the mass of water

                   32 g of O₂ ---------------- 36 g of water

                   7.3 g of O₂ ---------------   x

                          x = (7.3 x 36) / 32

                          x = 262.8 / 32

                          x = 8.21 g of H₂O

4 0
4 years ago
An unknown compound has the following chemical formula: where stands for a whole number. Measurements also show that a certain s
nirvana33 [79]

Answer:  This is only a guess:  The "following chemical formula:      " doesn't appear on my screen.  But since you mentioned Mg and Cl, I would guess MgCl2

Explanation:  Mr loses 2 electrons while each Cl gains one each:  Two chlorines for every 1 magnesium.

8 0
3 years ago
Other questions:
  • How many types of nomenclature in the features of organic chemistry? What are they?
    7·1 answer
  • According to Bohr atomic model
    13·1 answer
  • A trend in the periodic table means?
    15·1 answer
  • I need a answer quick. PLEASE<br><br>What is the volume of 2.43 x 1023 molecules of N2 gas at STP?
    8·1 answer
  • What is a current?
    12·1 answer
  • Tijuan mixed a solid and a liquid together in a beaker
    12·1 answer
  • Please help me I don’t know this
    14·1 answer
  • Which of the following powers the water cycle?
    11·2 answers
  • Compare and contrast aldehydes, ketones and alcohols in terms of structure, physical properties and chemical properties.
    5·1 answer
  • In a 0.20 M solution, a weak acid is 3.0% dissociated.(a) Calculate the [H₃O⁺] , pH , [OH⁻], and pOH of the solution.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!