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
hodyreva [135]
3 years ago
7

An atomega has a mass of 53 an an atomic number of 26. How many neutrons does it have

Chemistry
1 answer:
Ghella [55]3 years ago
4 0
26, protons and nuetrons will always be the  same

You might be interested in
Many fundamental concepts are at the heart of chemistry. Match the description to the name.
Lisa [10]

Answer:

you dony have a picture for me to match them

Explanation:

4 0
2 years ago
How do I balance a chemical reaction like one of these NaBr + Ca(OH)2 ➡️ CaBr2 + NaOH
mojhsa [17]
2NaBr + Ca(OH)2 ➡️ CaBr2 + 2NaOH
3 0
3 years ago
HELP ME WITH ONE OR BOTH OF THESE QUEATIONS PLEASEEEE
marta [7]

Answer:

2. 181.25 K.

3. 0.04 atm.

Explanation:

2. Determination of the temperature.

Number of mole (n) = 2.1 moles

Pressure (P) = 1.25 atm

Volume (V) = 25 L

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =?

The temperature can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

1.25 × 25 = 2.1 × 0.0821 × T

31.25 = 0.17241 × T

Divide both side by 0.17241

T = 31.25 / 0.17241

T = 181.25 K

Thus, the temperature is 181.25 K.

3. Determination of the pressure.

Number of mole (n) = 10 moles

Volume (V) = 5000 L

Temperature (T) = –10 °C = –10 °C + 273 = 263 K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =?

The pressure can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

P × 5000 = 10 × 0.0821 × 263

P × 5000 = 215.923

Divide both side by 5000

P = 215.923 / 5000

P = 0.04 atm

Thus, the pressure is 0.04 atm

6 0
3 years ago
What are the starting materials in a chemical reaction called?
Irina18 [472]
A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
8 0
3 years ago
The density of ethanol is 0.788 g/mL. What is the mass of 157 mL of alcohol?
Lina20 [59]

Answer:

<h3>The answer is 123.72 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume = 157 mL

density = 0.788 g/mL

We have

mass = 0.788 × 157 = 123.716

We have the final answer as

<h3>123.72 g</h3>

Hope this helps you

6 0
3 years ago
Other questions:
  • Do you think there is a time when we will run out of fossil fuels to burn. why or why not?
    8·1 answer
  • What is an isotope? a. A form of an element with a different number of electrons c. A form of an atom with a different amount of
    9·1 answer
  • We apply the same amount of energy to 10.0-g samples of aluminum, iron, and silver which begin at the same temperature.
    8·1 answer
  • What chemical change causes cake to rise?
    10·1 answer
  • Ted used a balance scale to weigh a 2.233 g sample of copper sulfate. Which of these measurements made by Ted is the most accura
    6·1 answer
  • The standard enthalpy change for the following reaction is 873 kJ at 298 K.
    6·1 answer
  • Treatment of butanedioic (succinic) anhydride with ammonia at elevated temperature leads to a compound of molecular formula C4H5
    15·1 answer
  • You push on the side of a toy truck rolling along the floor. What will happen to the motion of the truck?
    8·1 answer
  • The growing of plants, burning of wood, and decomposition of living matter demonstrate how carbon can be in the _______ at the s
    10·2 answers
  • What elements did the first periodic table stop on?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!