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
Gemiola [76]
3 years ago
10

Please help I will mark Brainly

Chemistry
1 answer:
r-ruslan [8.4K]3 years ago
3 0
The answer is b) 6. An element in group 6A has 6 valence electrons. 2 valence electrons are in s orbital and 4 valence electrons are in p orbital.
You might be interested in
Chris noticed a high-pressure system in the weather forecast for Monday
Alchen [17]

Answer:

A. Clear and Sunny

Explanation:

The answer would be A. Clear and Sunny. A high pressure system occurs where the air mass above the Earth is denser than in surrounding areas, and therefore exerts a higher force or pressure. They usually happen with li9ght winds. Using process of elimination, it could not be D. Warm and Stormy, C. Cloudy and Rainy, or B. Cold and Stormy because all have wet climates.

5 0
2 years ago
What is the chemical test to differentiate ethanol from ethanoic acid
Tomtit [17]

Answer:

Sodium hydrogencarbonate or sodium carbonate

8 0
2 years ago
a- If an Lithium (atomic number 3) atom has a -2 charge, how many electrons does it have? b- Why do you do it this way? c- Is th
Darina [25.2K]

Answer:

5

Explanation:

A lithium atom with an atomic number of 3 and a charge of -2 will have a total number of electrons.

The atomic number is the number of protons in an atom. For a neutral atom that has not gained or lost electrons, the atomic number is the same as the number of electrons.

   neutral atom: atomic number of electrons

For neutral atom of lithium, we will have 3 electrons

Now, lithium with a charge of -2 has gained two more electrons to the original 3 this now makes it 5.

ii.

It is an anion because it is negatively charged.

Negatively charged particles are called anion.

6 0
2 years ago
11.You and a friend find a rusty wire coat hanger near the
gtnhenbr [62]

Answer:

because he would've not known properly about it!

7 0
2 years ago
Metallic copper is formed when aluminum reacts with copper(ii) sulfate. how many grams of metallic copper can be obtained when 5
exis [7]
Answer is: 127 grams <span>rams of metallic copper can be obtained.
</span>Balanced chemical reaction: 2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu.
m(Al) = 54.0 g.
n(Al) = m(Al) ÷ M(Al).
n(Al) = 54 g ÷ 27 g/mol.
n(Al) = 2 mol.
m(CuSO₄) = 319 g.
n(CuSO₄) = 319 g ÷ 159.6 g/mol.
n(CuSO₄) = 2 mol; limiting reactant.
From chemical reaction: n(CuSO₄) : n(Cu) = 3 : 3 (1 : 1).
n(Cu) = 2 mol.
n(Cu) = 2 mol · 63.55 g/mol.
n(Cu) = 127.1 g.
8 0
3 years ago
Other questions:
  • You determine the volume of your plastic bag (simulated human stomach) is 1.08 L. How many grams of NaHCO3 (s) are required to f
    10·1 answer
  • The neutron has no electrical charge. True False
    8·2 answers
  • You contain the same elements that are found in and around the Earth. The atmosphere contains mostly nitrogen, 78%, and oxygen,
    8·1 answer
  • A compound is 39.97% carbon, 13.41% hydrogen, and 46.62% nitrogen. What is the empirical formula?
    15·2 answers
  • 6. Which example has BOTH ionic and covalent bonds? *
    10·1 answer
  • I need help. Look at the pictures.
    10·1 answer
  • 1. A volume of 120.0 liters of a gas is prepared at a pressure of 400.0 mm Hg and a temperature
    5·1 answer
  • What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the
    5·1 answer
  • Answer the following questions ( image) with the given options.​​
    5·2 answers
  • If 22.5L of nitrogen at 0.98 atm is compressed to 0.95 atm,what is the new volume?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!