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Roman55 [17]
3 years ago
9

What is true of atoms?

Chemistry
2 answers:
Marianna [84]3 years ago
7 0
B they are to small to see
They are the smallest element
Paladinen [302]3 years ago
5 0
The answer is B I’m sure it is
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determine the maximum amount of NaN03 that was produced during the experiment. Explain how you determined the amount
Angelina_Jolie [31]

Answer:

9 moles of NaNO3 is obtained

Explanation:

The balanced chemical reaction equation for the reaction is;

Al(NO3)3 + 3NaCl-------> 3NaNO3 + AlCl3

Now, we have to determine the limiting reactant. The limiting reactant yields the least amount of NaNO3.

1 mole of Al(NO3)3 yields 3 moles of NaNO3

4 moles of Al(NO3)3 yields 4 * 3/1 = 12 moles of NaNO3

Also,

3 moles of NaCl yields 3 moles of NaNO3

9 moles of NaCl yields 9 * 3/3 = 9 moles of NaNO3

Hence, NaCl  is the limiting reactant and 9 moles of NaNO3 is obtained.

7 0
3 years ago
Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C & occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

The answer to your question is 2.32 atm

Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

T = 61°C

R = 0.082 atm L/mol°K

Formula

PV = nTR

solve for P

P = nRT/V

Process

1.- Calculate the temperature in K

°K = °C + 273

°K = 61 + 273

    = 334

2.- Substitution

P = (0.214 x 0.082 x 334) / 2.53

3.- Simplification

P = 5.86/2.53

4.- Result

P = 2.32 atm

4 0
3 years ago
If you drop a ball and know how high it bounces what is Bounce height
blondinia [14]
36inches in the air first bounce second bounce 15
5 0
3 years ago
Which layer of the atmosphere is between the stratosphere and the thermosphere
kumpel [21]

ang is a Malay and Indonesian word for "person".

<span>An Orang Mawas, a southeast Asian primate cryptid, about 2.5 meters tallAn Orang Pendek, a southeast Asian primate cryptid, about 1 meter tall<span>An orangutan</span></span><span>
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8 0
3 years ago
What is the total number of molecules in 11.2 liters of N2 gas at STP
scoray [572]
Molar volume at STP = 22,4 L

1 mole -------------- 22,4 L
 x mole -------------- 11,2 L

x = 11,2 / 22,4

x =  0,5 moles of N2

1 mole --------------- 6,02.10²³ molecules
0,5 moles ------------ y molecules

y = 0,5 . 6,02.10²³

y = 3,01.10²³ molecules 

7 0
3 years ago
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