1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DIA [1.3K]
3 years ago
15

The atomic mass can be smaller than the atomic number

Chemistry
1 answer:
madreJ [45]3 years ago
8 0
That answer is true. bleh bleh bleh bleh 
You might be interested in
When 8.30 mol Mg react with 13.5 mol HCI, what is the limiting reactant and how many moles of H2 can be formed?
vovikov84 [41]

6.75 moles of H₂

Explanation:

We have the following balanced chemical reaction:

Mg + 2 HCl → MgCl₂ + H₂

From the chemical reaction we deduce that if 1 mole of Mg is reating with 2 moles of HCl then 8.30 moles of Mg is reaction with 16.60 moles of HCl, quantity which is over our available 13.5 moles of HCl. The limiting reactant is HCl.

Knowing this we devise the following reasoning:

if         2 moles of HCl produces 1 mole of  H₂

then    13.5 moles of HCl produces X moles of  H₂

X = (13.5 × 1) / 2 = 6.75 moles of H₂

Learn more about:

balancing chemical equations

brainly.com/question/13898428

#learnwithBrainly

4 0
3 years ago
Just vibin yall how about you
Vlada [557]

Answer:

Not much just operating brainly and waiting for my friends :)

4 0
3 years ago
Read 2 more answers
An isotope contains 26 protons, 24 electrons, and 32 neutrons
Anestetic [448]
The correct option is 58 Fe 2+.
A neutral atom normally has the same number of proton, neutron and electrons, if the number of electrons differ from that of proton, that means that the elements has given some electrons away or it has gained some electrons from another element.
In the question given above, the atomic number of the element is 26 [because the proton number is 26], which means the element is iron. Iron has 24 electrons because it has given two away, so it will have +2. The iron has 32 neutrons instead of 26 so it is an isotope.
3 0
3 years ago
Read 2 more answers
1. The pressure of a gas is 100.0 kPa and its volume is 500.0 ml. If the volume increases to 1,000.0 ml, what is the new pressur
marta [7]

Answer:

1) The new pressure of the gas is 500 kilopascals.

2) The final volume is 1.44 liters.

3) Volume will decrease by approximately 67 %.

4) The Boyle's Laws deals with pressures and volumes.

Explanation:

1) From the Equation of State for Ideal Gases we construct the following relationship:

\frac{P_{2}}{P_{1}} = \frac{V_{1}}{V_{2}} (1)

Where:

P_{1}, P_{2} - Initial and final pressure, measured in kPa.

V_{1}, V_{2} - Initial and final pressure, measured in mililiters.

If we know that P_{1} = 100\,kPa, V_{1} = 500\,mL and V_{2} = 1000\,mL, then the new pressure of the gas is:

P_{2} = P_{1}\cdot \left(\frac{V_{1}}{V_{2}} \right)

P_{2} = 500\,kPa

The new pressure of the gas is 500 kilopascals.

2) Let suppose that gas experiments an isothermal process. From the Equation of State for Ideal Gases we construct the following relationship:

\frac{P_{2}}{P_{1}} = \frac{V_{1}}{V_{2}} (1)

Where:

P_{1}, P_{2} - Initial and final pressure, measured in kPa.

V_{1}, V_{2} - Initial and final pressure, measured in mililiters.

If we know that V_{1} = 3.60\,L, P_{1} = 10\,kPa and P_{2} = 25\,kPa then the new volume of the gas is:

V_{2} = V_{1}\cdot \left(\frac{P_{1}}{P_{2}} \right)

V_{2} = 1.44\,L

The final volume is 1.44 liters.

3) From the Equation of State for Ideal Gases we construct the following relationship:

\frac{P_{2}}{P_{1}} = \frac{V_{1}}{V_{2}} (1)

Where:

P_{1}, P_{2} - Initial and final pressure, measured in kPa.

V_{1}, V_{2} - Initial and final pressure, measured in mililiters.

If we know that \frac{P_{2}}{P_{1}} = 3, then the volume ratio is:

\frac{V_{1}}{V_{2}} = 3

\frac{V_{2}}{V_{1}} = \frac{1}{3}

Volume will decrease by approximately 67 %.

4) The Boyle's Laws deals with pressures and volumes.

8 0
3 years ago
Which of these is an example of a physical change?
Goryan [66]
Is it a multiple choice?
4 0
4 years ago
Read 2 more answers
Other questions:
  • Which food is not a heterogeneous mixture?
    9·2 answers
  • Can anyone help me if possible?
    5·1 answer
  • Jeremy left his bike outside overnight. When he woke up in the morning, there were water drops on the seat. When he went to ride
    12·1 answer
  • How many moles of each element are in this sample p2o3
    11·1 answer
  • What is true about equinox? A.Day and night are equal in length. B. Shadows in the afternoon are longest. C. Nights are longest.
    11·1 answer
  • China is the leading producer of​
    8·2 answers
  • What is pollution?<br>when the tip of<br>a<br>plant is cut, it does not grow tall, why​
    9·1 answer
  • 12. (06.01 MC)
    6·2 answers
  • Which is one way that scientists ensure that data is reliable?
    8·1 answer
  • The nuclear disintegration series of ________ is the source of radon-222 in soil.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!