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MrRa [10]
3 years ago
7

Rutherford's gold-foil experiments proved the existence of which of the following?

Chemistry
2 answers:
Anestetic [448]3 years ago
4 0
The answer is the nucleus, because the beam of alpha particles would hit a small, dense positively charged center (nucleus) in the gold foil and bounce back or deflect at angles.
Alexxx [7]3 years ago
3 0
The nucleus i am sure but im not quite positive this is the right answer.
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8. What is the volume of 5.6 moles of carbon dioxide gas at STP?
pshichka [43]

Answer:

125.5 ×10^-3 m^3= 0.1255 m^3

Explanation:

Volume=5.6mol×22.414dm^3

=125.5dm^3

7 0
3 years ago
What is the net ionic equation for 2AgNO3 + 2NaOH = Ag2O + 2NaNO3 + H2O
soldi70 [24.7K]

Answer:

2Ag⁺ (aq) + 2OH⁻ (aq) → Ag₂O (s) + H₂O (l)

Explanation:

Step 1: RxN

2AgNO₃ + 2NaOH → Ag₂O + 2NaNO₃ + H₂O

Step 2: Define states of matter

2AgNO₃ (aq) + 2NaOH (aq) → Ag₂O (s) + 2NaNO₃ (aq) + H₂O (l)

Step 3: Total Ionic Equation

2Ag⁺ (aq) + 2NO₃⁻ (aq) + 2Na⁺ (aq) + 2OH⁻ (aq) → Ag₂O (s) + 2Na⁺ (aq) + 2NO₃⁻ (aq) + H₂O (l)

Step 4: Cancel out spectator ions

2Ag⁺ (aq) + 2OH⁻ (aq) → Ag₂O (s) + H₂O (l)

7 0
3 years ago
What volume is occupied by 0.104 mol of helium gas at a pressure of 0.91 atm and a temperature of 314 K ?
Aleksandr-060686 [28]

Answer:

The volume will be "2.95 L".

Explanation:

Given:

n = 0.104

p = 0.91 atm

T = 314 K

Now,

The Volume (V) will be:

= \frac{nRT}{P}

By putting the values, we get

= \frac{0.104\times 0.0821\times 314}{0.91}

= \frac{2.6810}{0.91}

= 2.95 \ L

7 0
3 years ago
A bottle of an unknown liquid has a volume of 6.3 mL and mass 255.15 g. What is its density? *
TEA [102]

Answer:

40.5 g/mL

Explanation:

Density is a measure of a substance's mass over its volume.

d = m/v

Therefore d = 255.15g/6.3mL = 40.5 g/mL

6 0
3 years ago
When the air inside a school gets warmer (temperature increases), the molecules of air move faster and farther apart. True Or Fa
Elodia [21]
Answer: The answer is false
5 0
3 years ago
Read 2 more answers
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