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
lozanna [386]
2 years ago
11

An atom with 5 protons, 6 neutrons, and 5 electrons has an atomic mass of _____ amu. (Enter a whole number.)

Chemistry
2 answers:
yarga [219]2 years ago
8 0

an atom  with  5 protons, 6 neutrons  and 5  electrons  has an atomic  mass of  11 amu


 <u><em> explanation</em></u>

  • Atomic  mass is also referred  to  as mass number.
  • atomic  mass  is  equivalent to total number  of  protons  and neutrons.
  • An atoms  with 5  protons, 6  neutrons and 5 electron  has a atomic  mass  of 11 because the total number of  protons and neutrons =11
beks73 [17]2 years ago
3 0

Your answer would be 11 AMU.

You might be interested in
Which of the following characteristics helps to distinguish a biome?
ladessa [460]

Answer: a biome is defined by its biogeography, temperature, and precipitation

Explanation:

3 0
3 years ago
Structure of 4-ethylheptene
Kisachek [45]

Answer:

PubChem CID 16663

Structure Find Similar Structures

Chemical Safety Laboratory Chemical Safety Summary (LCSS) Datasheet

Molecular Formula C9H20

Synonyms 4-ETHYLHEPTANE 2216-32-2 Heptane, 4-ethyl- 4-ethyl-heptane 4-ethyl heptane

Explanation:

7 0
3 years ago
Match each statement with a layer of the atmosphere. There will be two statements for each layer.
LuckyWell [14K]

<u>The troposphere: </u>

H. This layer can have thunderstorms or clear, sunny skies.

A. The biosphere interacts most with this layer. 

<u>The stratosphere:</u>

B. It is the second layer from Earth's surface. 

G. Winds are strong and steady in this layer. 

<u>The mesosphere:</u>

E. It is heated by the ozone layer beneath it. 

D. This layer is where most meteor showers occur. 

<u>The thermosphere :</u>

F. It contains the ionosphere and exosphere. 

C. It contains layers of single, unmixed gas. 

<u>Explanation:</u>

Depending on the Earth's  temperature the atmosphere can be separated into layers. The troposphere, the stratosphere, the mesosphere and the thermosphere are those layers. The lowest layer is named as Troposphere (0-10 km from the Earth outer surface), it comprises about 75% of the atmosphere's total air and nearly most the water vapor.

Stratosphere (10-30) includes much of the surface ozone. The change in height temperature arises as this ozone absorbs ultraviolet (UV) radiation from the sun. The temperature in Mesosphere (30-50 Km) declines again with height, hitting a minimum of about -90 ° C at the "mesopause." Above this thermosphere (50-400 Km) is settled which is a area where temperatures rise with height once again. The penetration of intense  UV and X-ray radiation from the sun induces this temperature rise.

6 0
2 years ago
34. 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The solution's temperature increases
Digiron [165]

Answer:

ΔH = 2.68kJ/mol

Explanation:

The ΔH of dissolution of a reaction is defined as the heat produced per mole of reaction. We have 3.15 moles of the solid, to find the heat produced we need to use the equation:

q = m*S*ΔT

<em>Where q is heat of reaction in J,</em>

<em>m is the mass of the solution in g,</em>

<em>S is specific heat of the solution = 4.184J/g°C</em>

<em>ΔT is change in temperature = 11.21°C</em>

The mass of the solution is obtained from the volume and the density as follows:

150.0mL * (1.20g/mL) = 180.0g

Replacing:

q = 180.0g*4.184J/g°C*11.21°C

q = 8442J

q = 8.44kJ when 3.15 moles of the solid react.

The ΔH of the reaction is:

8.44kJ/3.15 mol

= 2.68kJ/mol

5 0
2 years ago
A similar reaction is used frequently in laboratory experiments as an indicator. Can you guess what that might be?
svp [43]

Answer: ph scale

Explanation:

7 0
2 years ago
Other questions:
  • Please answer number12
    15·1 answer
  • As the number of effective collisions between reacting particles increases, the rate if a chemical reaction:
    14·1 answer
  • Which of the following would not be an isotope of carbon-12? A. Carbon-14 B. Carbon-13 C. Boron-12 D. Carbon-11
    15·1 answer
  • Which of the following ions is an oxyanion?
    15·2 answers
  • I need the definition of metallic bonds I can not find the exact definition. Please help 20 points and Briainest
    10·1 answer
  • Why do scientists need a universal system to classify organisms?
    15·1 answer
  • Can soft drinks be part of a healthy diet?
    14·1 answer
  • It is possible for an object’s weight to change while it’s mass remains constant?Explain.
    10·1 answer
  • The mass of a substance is 27.46 g and its volume is 3.42 mL. What is the density of the substance? (hint: density = mass ÷ volu
    6·2 answers
  • What is the density of a solid with a mass of 75g and a volume of 5 cm^3?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!