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Hunter-Best [27]
3 years ago
15

What is a property of all atoms

Chemistry
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

idkeisjdndjdjsjsjssjsj

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What is the molarity of 2 moles of iron oxide,FeO in 8 Liters of water
faust18 [17]

Answer : 0.25 M

explanation :

- Molarity is the number of moles of solute per liters of solvent.

- Molarity (M) = (n) / V (liter) = 2 / 8 = 0.25 M


5 0
2 years ago
Show the calculation of the mass (grams) of a 14.5 liter gas sample with a molecular weight of 82 when collected at 29°C and 740
mote1985 [20]

Answer:

In this conditions, the gaswll weight 46.74 g.

Explanation:

The idal gas law states that:

PV = nRT,

P: pressure = 740 mmHg = 0.97 atm

V: volume = 14.5 L

n: number of moles

R: gas constant =0.08205 L.atm/mol.K

T: temperature = 29°C = 302.15K

n = \frac{PV}{RT} \\n = \frac{0.97x14.5}{0.082 x 302.15 } \\n = 0.57 mol

1 mol gas ___ 82 g

0.57 mol gas __ x

x = 46.74 g

4 0
3 years ago
A 10.50 gram sample of a compound is decomposed to yield 3.40 g Na, 2.37 g S, and 4.73 g O. What is the mass percentage of each
9966 [12]

Answer:

Na = 32.4% , % S = 22.6% and %O = 45.0%

Explanation:

% Na = 3.4/10.5. × 100%

= 32.4%

%S = 2.37/10.5 × 100%

= 22.6%

% O= 4.73/10.5 × 100%

= 45.0%xplanation:

6 0
3 years ago
Question 2<br> Describe the energy in coal and the way in which it’s converted to electrical energy.
Scilla [17]

Answer:

Its rich carbon content gives coal most of its energy content. When coal is burned in the presence of air or oxygen, heat energy is released. This energy can then be converted to other forms of useful energy. Coal-fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity.

Hope this helps! :)

7 0
2 years ago
Match each scientist to their discovery regarding the atom
neonofarm [45]

Answer:

Thomson--atoms cotain electron

Ernest Rutherford--atoms have a positive nucleus

R.A Millikan--electrons have Q=-1

Dalton--atoms are indivisible

3 0
3 years ago
Read 2 more answers
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