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
Allushta [10]
3 years ago
10

Question 2 (1.5 points)

Chemistry
1 answer:
Irina18 [472]3 years ago
7 0

Answer

The answer is: a hidden element, such as a valuable collectible item, or novelty item

Explanation:

You might be interested in
Please answers the question​
frozen [14]
That is correct hope that helps
8 0
3 years ago
A chemical plant produces ammonia using the following reaction at a very high temperature and pressure. Which design issue is mo
Lorico [155]

Answer:

D. The equipment needed to accommodate the high temperature and pressure will be expensive to produce.​

Explanation:

Hello!

In this case, for the considered reaction, it is clear it is an exothermic reaction because it produces energy; and therefore, the higher the temperature the more reactants are yielded as the reverse reaction is favored. Moreover, since the effect of pressure is verified as favoring the side with fewer moles; in this case the products side (2 moles of ammonia).

In such a way, the high pressure favors the formation of ammonia whereas the high temperature the formation of hydrogen and nitrogen and therefore, option A is ruled out. Since the high pressure shifts the reaction rightwards and the high temperature leftwards, we would not be able to know whether the reaction has ended or not because it will be a "go and come back" process, that is why B is also discarded. Now, since hydrogen and nitrogen would be the "wastes", we discard C because they are not toxic. That is why the most accurate answer would be D. because it is actually true that such equipment is quite expensive.

Best regards!

6 0
3 years ago
A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
Igoryamba

Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

Explanation:

Step 1: Given data

  • Mass of Mg(NO₃)₂ (solute): 42.0 g
  • Volume of solution: 259 mL = 0.259 L

Step 2: Calculate the moles of solute

To calculate the moles of solute, we need to know the molar mass of Mg(NO₃)₂, 148.3 g/mol.

42.0 g × 1 mol/148.3 g = 0.283 mol

Step 3: Calculate the molarity of the solution

M = moles of solute / liters of solution

M = 0.283 mol / 0.259 L

M = 1.09 M

7 0
3 years ago
Select the correct answer.
zalisa [80]

Well, this is somewhat difficult, because an electron already creates an electric field.  However, I know that when an electron moves it then creates a magnetic field.  So, I'm going to safely assume that when an electron moves, it creates an electric, a magnetic, and a gravitational field.  

I hope that helps!

8 0
3 years ago
Read 2 more answers
The molar mass of NH3 is 17.03 g/mol. The molar mass of H2 is 2.0158 g/mol. In a particular reaction, 0.575 g of NH3 forms. What
Arlecino [84]

The balanced chemical reaction is:

N2 + 3H2 = 2NH3

 

We are given the amount of ammonia formed from the reaction. This is where we start our calculations.

 

0.575 g NH3 (1 mol NH3 / 17.03 g NH3) (3 mol H2 / 2 mol NH3) ( 2.02 g H2 / 1 mol H2) = 0.10 g H2

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why cant magnesium ions be detected in a flam test?
    15·1 answer
  • Hormones are chemicals secreted by the
    5·1 answer
  • CHEMISTRY HELP PLEASE!
    10·2 answers
  • Which element is found in nature only in compounds? A. sodium B. helium C. oxygen D. nitrogen
    11·2 answers
  • Does everything that you can see fit the definition for matter?
    13·1 answer
  • Label each of the descriptions below as theoretical
    5·2 answers
  • A liquid is placed in a closed container and time passes until
    11·1 answer
  • Not following hazardous material safety policies and procedures can result in which of
    13·1 answer
  • Gas occupies 30 Liters at 2.0 atm pressure and 27° Celsius. How many moles of gas are present
    15·1 answer
  • When equal moles of an acid and a base are mixed, after reaction the two are compounds are said to be at the _______________. Se
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!