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
kumpel [21]
3 years ago
10

The number of protons in the nucleus is always equal to the number of neutrons. True or False?

Chemistry
2 answers:
vekshin13 years ago
7 0
False. The number of neutrons can be more or less than the number of protons.
goldfiish [28.3K]3 years ago
4 0
The answer is false , the printing in the nucleus equal to the atomic number
You might be interested in
Options:
Inessa [10]

Answer:

saturated fats

Explanation:

bcoz it is solid at room temperature and does not have double bonds between carbons

8 0
2 years ago
Use the following equation to answer the questions below:
Gala2k [10]

Explanation:

The equation of the reaction is given as;

Be + 2HCl → BeCl2 + H2

What is the mass of beryllium required to produce 25.0g of beryllium chloride?

1 mol of Be produces 1 mol of BeCl2

Converting to mass;

Mass = Molar mass  *  Number of moles

9.01g of Be produces 79.92g of BeCl2

xg of Be produces 25g of BeCl2

Solving for x;

x = 25 * 9.01 / 79.92

x = 2.82 g

What is the mass of hydrochloric acid required to produce 25.0g of beryllium chloride? g

Converting 25.0g of beryllium chloride to moles;

Number of moles = Mass / Molar mass

Number of moles = 25 / 79.92 = 0.3128 mol

2 mol of HCl produces 1 mol of BeCl2

x mol of HCl would produce 0.3128 mol of BeCl2

solving for x;

x = 0.3128 * 2 = 0.6256 mol

Converting to mass;

Mass = 0.6256 * 36.5 = 22.83 g

What is the mass of hydrogen gas produced when 25.0g of beryllium chloride is also produced? g

25g of BeCl2 = 0.3128 mol of BeCl2

From the equation;

1 mol of H2 is produced alongside 1 mol of BeCl2

This means;

0.3128 mol of H2 would also be produced alongside 0.3128 mol of BeCl2

Mass = Number of moles * Molar mass

Mass = 0.3128mol * 2.0159 g/mol = 0.6306 g

3 0
3 years ago
Help me please thanks
Evgesh-ka [11]

Then answer would be D. Answer D is correct because you would need to use a better solvent to see the ink separate on the chromatography paper. Hope that helps. :)

6 0
3 years ago
A gas has a pressure of 1.34 atm when the temperature is 237K. The gas is then heated until the temperature measures 312K. What
alexandr1967 [171]

The answer for the following question is answered below.

  • <em><u>Therefore the new pressure of the gas is 1.76 atm.</u></em>

Explanation:

Given:

Initial pressure of the gas = 1.34 atm

Initial temperature of the gas = 273 K

final temperature of the gas = 312 K

To solve:

Final temperature of the gas

We know;

From the ideal gas equation

P × V = n × R × T

So;

from the above equation we can say that

    <em>P ∝ T</em>

     \frac{P}{T} = constant  

     \frac{P_{1} }{P_{2} } = \frac{T_{1} }{T_{2} }

Where;

P_{1} = initial pressure of a gas

P_{2} = final pressure of a gas

T_{1} = initial temperature of a gas

T_{2} = final temperature of  a gas

    P_{2} = \frac{1.34*312}{237}

    P_{2}  = 1.76 atm

<em><u>Therefore the new pressure of the gas is 1.76 atm.</u></em>

6 0
3 years ago
When this happens the inward force of gravity is exactly balanced with the outward force created by _______ and _____________.
4vir4ik [10]
Sw ocjhohz hug tú the funny ohhzubutgrrfuY
8 0
3 years ago
Other questions:
  • Compare and contrast the compositions of binary ionic and binary molecular compounds
    15·1 answer
  • What are the four characteristics of a mineral?
    15·2 answers
  • Which types of matter are made of atoms
    13·2 answers
  • A photon with a wavelength of less than 50.4 nm can ionize a helium atom.
    13·1 answer
  • Part of making comparisons involves contrasting unlike characteristics.
    11·2 answers
  • What is the correct formula for potassium sulfite? khso khso4 k2so4 k2so3
    11·2 answers
  • What is acid rain? Please answer it as fast as possible....I really need it......
    9·2 answers
  • Which substance is least soluble at 90°C?
    12·1 answer
  • Why cant you see individual atoms without a special tool​
    14·2 answers
  • What is the volume (ML) of water
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!