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
Verdich [7]
3 years ago
6

Specify the number of protons, neutrons, and electrons in the neutral atom iron-56. Enter your answers as integers separated by

commas. The ion has _____ protons and _____ electrons. Enter your answers as integers separated by a comma. What isotope has 14 protons and 14 neutrons? Enter the name of the element followed by a hyphen and the mass number (e.g., uranium-234).
Chemistry
2 answers:
Anastaziya [24]3 years ago
7 0

Answer:

Iron-56 protons: 26 neutrons: 30 electrons:26

WHat isotope has 14 protons and 14 neutrons? Silicon

and i would say Silicon-28

Explanation:

I am Lyosha [343]3 years ago
4 0

Answer:idk

Explanation:

You might be interested in
A yellow tulip and a red tulip are _____.
irina1246 [14]

Answer:

variations of the same species

Explanation:

hope this helps have a good day

7 0
3 years ago
Read 2 more answers
The chemical bonds of carbohydrates and lipids have high potential energy because:
gladu [14]

Answer:

c. Many of their bonds are C-C and C-H

Explanation:

The majority of bonds in  carbohydrates and lipids( being an organic compound) are C-C and C-H. Like glucose, fructose or galactose ,etc.

These bonds are strong and do require a lot of energy to break. Thus, a lot of energy are required to break carbs and lipids into simpler compounds.Therefore, carbohydrates and lipids have high potential energy.

The correct answer is c.

4 0
3 years ago
5. Geologists think that the inner and outer cores of Earth consist of<br> iron and nickel.
wolverine [178]

Answer:

is this true/false? if so its true.

Explanation:

3 0
2 years ago
The density of a 3.37M MgCl2 (FW = 95.21) is 1.25 g/mL. Calulate the molality, mass/mass percent, and mass/volume percent. So fa
Dafna1 [17]

Answer : The molality, mass/mass percent, and mass/volume percent are, 0.0381 mole/Kg, 25.67 % and 32.086 % respectively.

Solution : Given,

Density of solution = 1.25 g/ml

Molar mass of MgCl_2 (solute) = 95.21 g/mole

3.37 M magnesium chloride means that 3.37 gram of magnesium chloride is present in 1 liter of solution.

The volume of solution = 1 L = 1000 ml

Mass of MgCl_2 (solute) = 3.37 g

First we have to calculate the mass of solute.

\text{Mass of }MgCl_2=\text{Moles of }MgCl_2\times \text{Molar mass of }MgCl_2

\text{Mass of }MgCl_2=3.37mole\times 95.21g/mole=320.86g

Now we have to calculate the mass of solution.

\text{Mass of solution}=\text{Density of solution}\times \text{Volume of solution}=1.25g/ml\times 1000ml=1250g

Mass of solvent = Mass of solution - Mass of solute = 1250 - 320.86 = 929.14 g

Now we have to calculate the molality of the solution.

Molality=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent}}=\frac{3.37g\times 1000}{95.21g/mole\times 929.14g}=0.0381mole/Kg

The molality of the solution is, 0.0381 mole/Kg.

Now we have to calculate the mass/mass percent.

\text{Mass by mass percent}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100=\frac{320.86}{1250}\times 100=25.67\%

The mass/mass percent is, 25.67 %

Now we have to calculate the mass/volume percent.

\text{Mass by volume percent}=\frac{\text{Mass of solute}}{\text{Volume of solution}}\times 100=\frac{320.86}{1000}\times 100=32.086\%

The mass/volume percent is, 32.086 %

Therefore, the molality, mass/mass percent, and mass/volume percent are, 0.0381 mole/Kg, 25.67 % and 32.086 % respectively.

8 0
3 years ago
How are conclusions and evidence related
serg [7]
You need evidence to support a conclustion 
3 0
3 years ago
Read 2 more answers
Other questions:
  • How many significant figures are in 28.6 g
    10·2 answers
  • Which term is defined as the region in an atom where an electron is most likely to be located
    7·2 answers
  • Why does light that passes through our windows at home not display the beautiful colors
    9·1 answer
  • An element has 8 protons and 8 neutrons in its nucleus and 8 electrons revolving around the nucleus. What is the atomic number a
    8·1 answer
  • Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pr
    6·1 answer
  • A 54.0 mL aliquot of a 1.60 M solution is diluted to a total volume of 218 mL. A 109 mL portion of that solution is diluted by a
    15·1 answer
  • Which two planets are called "ice giants"? ​
    6·2 answers
  • Examples of accurate but imprecise measurements
    6·1 answer
  • What is the V2O5 coefficient??
    15·1 answer
  • Write the chemical formula of sodium thiosulphate​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!