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postnew [5]
2 years ago
15

What is the atomic mass of 3NaCl

Chemistry
1 answer:
givi [52]2 years ago
8 0

Answer:

35.453

Explanation:

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Does the density of ice affect the melting rate of ice, or does adding objects affect melting rates? I'm going to need evidence
kotykmax [81]
The density of ice does not affect the melting rate. But, adding an object does affect the melt rate. The reason this is is because when there is an object, there is less to melt. Hence, affecting the melting rate.
7 0
3 years ago
Read 2 more answers
1. What pressure would be exerted by 46.0grams of hydrogen gas placed into a 3.00 L container at
dlinn [17]

Answer:

187.34 atm

Explanation:

From the question,

PV = nRT.................. Equation 1

Where P = Pressure, V = Volume, n = number of mole, R = molar gas constant, T = Temperature.

make P the subject of the equation

P = nRT/V.............. Equation 2

n = mass(m)/molar mass(m')

n = m/m'............... Equation 3

Substitute equation 3 into equation 2

P = (m/m')RT/V............ Equation 4

Given: m = 46 g, T = 25°C = (25+273) = 298 K, V = 3.00 L

Constant: m' = 2 g/mol, R = 0.082 atmL/K.mol

Substitute these values into equation 4

P = (46/2)(0.082×298)/3

P = (23×0.082×298)/3

P = 187.34 atm

3 0
2 years ago
Sort each of the following events based on whether the solubility of the indicated gas will increase, decrease, or stay the same
Andre45 [30]
<span>1. the pressure of a gas over a solvent is increase
</span> Gas solubility decreases"<span>

2. the partial pressure of an anesthetic gas is increased 
</span> " gas solubility does not change"<span>

3. air in blood a diver descends 10 M and pressure increases by 1 atm
</span> Gas solubility decreases"<span>

4. the temp is increase
</span>"gas solubility increases"<span>

5. O2 the temp of a body of water rises.
</span>"gas solubility increases"

6 0
3 years ago
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Calculate the net force on the object below.
Anastaziya [24]

Answer:

first we add the same direction. 12N + 32 N=44N .

then we add the forces. 54 up + 44N down= 10N up

8 0
2 years ago
What is the rate of acceleration of a 2,000-kilogram truck if a force of 4,200n is used to make it start moving forward?
butalik [34]

Answer:

The answer to your question is:      a = 2.1 m/s²

Explanation:

Data

Acceleration : ?

Mass = 2000 kg

Force = 4200 N

Formula

Newton's second law of motion    F = ma

                                                        a = F / m

Substitution

                                     a = 4200 N / 2000 kg

                                      a = 2.1 m/s²

                                                     

7 0
3 years ago
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