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
timurjin [86]
3 years ago
11

When an element exist in nature by itself, it must have a charge of

Chemistry
1 answer:
pochemuha3 years ago
3 0
It must have a charge of zero

You might be interested in
What type of energy is stored in the chemical bonds between atoms?
Brrunno [24]

Answer:

Chemical energy

Explanation:

An atom is the basic unit of a chemical element.

A chemical bond held together with atoms, ions, or molecules that leads to the formation of chemical compounds. A chemical bond may be covalent, polar covalent, or ionic. Among these chemical bonds, an ionic bond is the strongest chemical bond.

Chemical energy is stored in the chemical bonds between atoms.

7 0
3 years ago
Read 2 more answers
Why are group 1a (1) and group 2a (2) elements found in many compounds, but not group 8a (18) elements?
Rashid [163]
Because group 1a and 2a are most reactive due to their least number of electrons in their outmost shell compared to group 8a(18)
4 0
2 years ago
Read 2 more answers
How much is 2.50 g of CuCl2 in moles ?
Inessa05 [86]
The molar mass of CuCl2 is 134.45 g/mol; therefore, you divide 2.5 g of CuCl2 by 134.45 g of CuCl2 leaving you with 0.019 moles. 
I hope this works.
PLEASE GIVE ME A BRAINIEST CROWN.
5 0
3 years ago
1. Energy in foods is provided by
ELEN [110]

Answer:

Energy in foods is provided by macro-nutrients.

Explanation:

Nutrients are “environmental substances” used for growth, energy, and bodily functions of the  organisms. Those nutrients that are required  in larger amounts are called macro-nutrients.

There are 3 macro-nutrients needed by humans: lipids (fats), carbohydrates (sugar) and proteins. All these macro-nutrients gives energy in  form of “calories”. For example:

  • In carbohydrates, there are '4 calories' of energy per gram.
  • In proteins, there are '4 calories' of energy per gram.
  • And in lipids, there are '9 calories' of energy in one gram.

This means that if you look at a food label and it lists 10 grams of carbohydrates, 0 grams of protein, and 0 grams of fat, that food would contain 40 calories.

8 0
3 years ago
the isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it. what isotope is created? a.
olasank [31]
The elements are identified by the number of protons of the atom, which is its atomic number.

In this case the number of protons 39 (atomic number 39) permit you to identify the element as gallium.

Now, to identify the isotope you tell the name of the element and add the mass number.

The mass number is the sum of the protons and the neutrons

In this case, the number of neutrons is the original 39 plus the 2 added suddenly, i.e. 39 + 2 = 41, so the mass number is 31 + 41 = 72

Therefore, the isotope is gallium - 72.

Answer: isotope gallium - 72

7 0
2 years ago
Read 2 more answers
Other questions:
  • The nucleus of the cell
    9·1 answer
  • 1) A car is traveling down the interstate at 37.1 m/s. The driver sees a cop and quickly slows down. If the driver slows to 29.8
    11·1 answer
  • What is true of every water molecule?It is made of two water atoms.It is made of one water atom and one DNA atom.It is made of t
    11·1 answer
  • Converting carbon to nitrogen by increasing the number of protons from 6 to 7 and decreasing the number of neutrons from 8 to 7
    12·2 answers
  • Select the correct Answers.
    7·2 answers
  • Chair and Boat Conformers of Cyclohexane (C6H12). Note it is impossible to place all the carbons in the same plane without strai
    7·1 answer
  • Humans have the ability to change the characteristics, or traits, of organisms over time. What is this process called?
    9·2 answers
  • 1234567 sc: thatbitxh.lizzy
    6·2 answers
  • Four forces are exerted on each of the two objects shown below:
    8·1 answer
  • If the atoms that share electrons have an unequal attraction for the electrons, the bond is called
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!