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
Leto [7]
3 years ago
8

If there are 77 electrons in a neutral atom then how many protons will be in the same atom?

Chemistry
1 answer:
Alex3 years ago
3 0
In neutral atom, Number of electrons = Number of protons
so, Number of protons = 77

Your final answer is 77

Hope this helps!
You might be interested in
Given the noble gas configuration of an element: [Ar] 4s2, 3d5, what is the element?
monitta

Question

<em>Given the noble gas configuration of an element: [Ar] 4s2, 3d5, what is the element? </em>

Answer:

<em>B.) Argon</em>

Hope this helps!

6 0
3 years ago
A helium-filled balloon has a volume of 2.48 L and a pressure of 150 kPa. The volume of the balloon increases to 2.98 L after yo
Tema [17]

Answer:

THE NEW PRESSURE OF THE HELIUM GAS AT 2.98 L VOLUME IS 124.8 kPa.

AT AN INCREASE ALTITUDE, THERE IS A LOWER PRESSURE ENVIRONMENT AND THE HELIUM GAS PRESSURE DECREASES AND HENCE AN INCREASE IN VOLUME.

Explanation:

The question above follows Boyle's law of the gas law as the temperature is kept constant.

Boyle's law states that the pressure of a fixed mass of gas is inversely proportional to the volume, provided the temperature remains constant.

Mathematically, P1 V1 = P2 V2

P1 = 150 kPa = 150 *10^3 Pa

V1 = 2.48 L

V2 = 2.98 L

P2 = ?

Rearranging the equation, we obtain;

P2 = P1 V1 / V2

P2 = 150 kPa * 2.48 / 2.98

P2 = 372 *10 ^3 / 2.98

P2 = 124.8 kPa.

The new pressure of the gas when at a height which increases the volume of the helium gas to 2.98 L is 124.8 kPa.

6 0
3 years ago
Describe the term molarity as it relates to an acid or base.
Sidana [21]
Molarity is expressed as the number of moles of solute per volume of the solution. For example, we are given a solution of 2M NaOH this describes a solution that has 2 moles of NaOH per 1 L volume of the solution. Acids and bases can be measured through the concentrations of H+ and OH- ions in units of molarity. Hope this helps.
4 0
3 years ago
Read 2 more answers
I still need help!!! I even asked my science teacher and she B. But idk...I’m torn between A and B!!! APEX
Radda [10]

“Water” is the best thermal insulator.

Option: B

<u>Explanation</u>:

“Thermal insulators” are the materials which do not allow heat to transfer. “Water” is the substance which does not transfer heat. Hence, the “water” is the best “thermal insulator”. Water is the bad conductor of thermal heat. Water has “low thermal conductivity” than other substances, so this acts as an insulator as long as it is not traveled from one place to another. Heat is transferred when a “hot object collides” with “the cold objects”. The “thermal conductivity” of “water” is 0.6 W/m K.

6 0
3 years ago
Hook was the first to discover cells in a cork. true or false?
aliina [53]
True, Robert Hooke was the first person to discover cells inside a cork.
5 0
3 years ago
Other questions:
  • Explains how commercial land use negatively impacts watersheds?
    8·1 answer
  • when sodium atom reacts with chlorine atoms form a compound, the electron configurations of ions forming the compound are the sa
    8·1 answer
  • The overall chemical equation is C(s)+H2O(g)-&gt;CO(g)+H2(g). To calculate the final enthalpy of the overall chemical equation,
    14·1 answer
  • The weather report says that if the temperature drops 10°, it will reach 25° below zero. The current temperature T can be found
    13·1 answer
  • Which way of representing a molecule best shows its three-dimensional shape?
    15·1 answer
  • The number 40 in the name calcium-40 represents
    7·2 answers
  • If you mix two reactants together that produce a new product as the result of chemical reaction, and the reaction flask feels wa
    9·2 answers
  • Write the net ionic equation for the reaction of sodium chloride with magnesium hydroxide. Include the complete ionic equation a
    14·2 answers
  • POINTSSS AND BRAINLIEST IF YOU ANSWER CORRECTLY!!! Write about the law of conservation of energy and where light energy goes. th
    8·1 answer
  • Which two practices are examples of how people use sciense
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!