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
Alex
3 years ago
8

Which of the following is the electrical charge on an atom that contains 6 electrons, 3 neutrons, and 4 protons?

Chemistry
1 answer:
Y_Kistochka [10]3 years ago
4 0

Answer:

Its electrical charge is -2.

You might be interested in
How many hydrogen atoms in the following chemical formula ? <br> NH4OH
djyliett [7]

Answer:

5

Explanation:

NH4OH

The subscript gives the info that there are 4 hydrogen atoms but there is another H in the formula so you add them up.

5 0
2 years ago
Abbrevation of mass in the si unit
Leno4ka [110]
The SI unit for mass is Kilogram (kg).
3 0
3 years ago
Middle School science 3 1. Illustrate the position of the Earth, moon, and sun during a lunar eclipse. You may do so by typing a
lilavasa [31]
I hope this helps you

7 0
3 years ago
Which statement is a correct expression of the Law of Conservation of Mass?
Phantasy [73]
<span><span>Law of Conservation of Mass - "The total mass after a chemical reaction is exactly the same as the mass before"</span></span><span>
</span>
6 0
2 years ago
Please help with both
kupik [55]

Answer:

D =Average atomic mass  = 10.801 amu.

5) True

Explanation:

Abundance of B¹⁰= 19.9%

Abundance of B¹¹ = 80.1%

Atomic mass of B¹⁰ = 10 amu

Atomic mass of B¹¹ = 11 amu

Average atomic mass = ?

Solution:

Average atomic mass  = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (10×19.9)+(11×80.1) /100

Average atomic mass =  199 + 881.1 / 100

Average atomic mass  = 1080.1 / 100

Average atomic mass  = 10.801 amu.

2)A chemical reaction is one in which a new elements is created

True

False

Answer:

In chemical reaction new substances are created.

For example:

Photosynthesis:

It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

Carbon dioxide + water + energy →   glucose + oxygen

water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

it is known from balanced chemical equation that 6 moles of carbon dioxide react with the six moles of water and created one mole of glucose and six mole of oxygen.

8 0
3 years ago
Other questions:
  • ¿Cuál es el estado de oxidación del azufre en S203?
    11·1 answer
  • La primera célula de un nuevo ser es
    8·1 answer
  • Question 1 (4 points)
    14·1 answer
  • Identify the type of atom that generally forms covalent bonds
    7·1 answer
  • Abby fills a graduated cylinder with 3 mL of water. She
    13·1 answer
  • Describe the structure of our galaxy, including its spiral arms.
    5·2 answers
  • Enter the balanced chemical equation for the reaction of each of the following carboxylic acids with KOH.Part Aacetic acidExpres
    13·1 answer
  • The decomposition of N2O to N2 and O2 is a first-order reaction. At 730°C, the rate constant of the reaction is 1.94 × 10-4 min-
    15·1 answer
  • "Para enfriar algo rápidamente se hace una mezcla de hielo con sal o, si tiene precaución, alcohol. El punto de congelación baja
    14·1 answer
  • What type of cells are gametes?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!