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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:

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The actual number of pennies in a jar is 218. You miscounted and came up with 215 pennies. What is your percent error?
Katyanochek1 [597]

Answer:

3%

Explanation:

Substract the actual error from the final and multiply by 100

6 0
3 years ago
Solve this problem using the appropriate law. (Remember that ) What is the pressure of 1.9 mols of nitrogen gas in a 9.45 L tank
dedylja [7]
PV=nRT

You are funding pressure and you have V = 9.45L, n = 1.9 moles, R = gas constant, and T = 228 K

P(9.45L) = (1.9moles)(0.0821)(228K)

Find P

Multiply

9.45P = 35.57

Divide

P = 3.76 L of N

Answer should be 3.76 liters of nitrogen
7 0
4 years ago
Read 2 more answers
WHO IS GOOD AT CHEMISTRY EQUATIONS? I NEED A QUESTION ANSWERED BY TONIGHT! ITS THE ONLY ONE IM STUCK ON:
sattari [20]

Answer:

374 atoms would be present in 22 units of aluminum sulfate.

Explanation:

Formula for Aluminium Sulfate :  Al₂(SO₄)₃

Al = 2

S = 1

O = 4

(SO) = 3

∴ Number of atom in one unit is :  2 + (1+4)3 ==> 17

If there are 17 atoms in one unit, therefore;

Number of atoms in 22 units = 17 x 22

                                                = 374 atoms

4 0
3 years ago
How many stars are in the constellation Andromeda?<br><br> hellllp i give brainlyst!
soldi70 [24.7K]

Answer:

51 stars it said i needed 20 characters because my answer was too short

so yeah.

3 0
3 years ago
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Part A What are plate boundaries at which lithospheric plates that a) move toward each other, b) move past each other, and c) mo
Alex787 [66]

Answer:

a. Convergent boundary

b. Transform boundary

c. Divergent boundary

Explanation:

Convergent boundary are boundary where tectonic plates collide with each other. This kind of boundary might involve a collision between continental and oceanic plates, continental and continental plates and oceanic and oceanic plates. Generally, convergent boundary are regions for mountainous structures . Example of mountain formed through convergence are mountain Everest and Himalayas .

Transform boundary are boundary where tectonic plates move past each other . This kind of boundary is responsible for the creation of Extensive Fault like the San Andrea Fault.

Divergent boundary are boundary where tectonic plates move away from each other.  The diverging movements brings about oceanic ridges. The mid oceanic ridges is where magma rises to the surface to form a new crust. The up welling of this magma causes further separation of this plates.

The picture above illustrate convergent, divergent and transform boundary.

4 0
4 years ago
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