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
lana66690 [7]
3 years ago
9

Pls I need help with these ques. help plsssssssssssssss

Chemistry
1 answer:
snow_lady [41]3 years ago
6 0

Answer:

q1..no.2 and 4 are aromatic

You might be interested in
When the particles of two objects have the same average kinetic energy, what do we know about those objects?
Dmitriy789 [7]
That they both will be the same average kinetic energy
3 0
3 years ago
What mass of hydrogen sulfide, H2S, will completely react with 2.00 moles of silver nitrate, AgNO3?
hodyreva [135]

Answer:

34g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

H2S + 2AgNO3 —> 2HNO3 + Ag2S

Next, we shall determine the number of mole of H2S required to react with 2 moles of AgNO3.

This is illustrated below:

From the balanced equation above,

We can see that 1 mole of H2S is required to react completely with 2 moles of AgNO3.

Finally, we shall convert 1 mole of H2S to grams. This is shown below:

Number of mole H2S = 1 mole

Molar mass of H2S = (2x1) + 32 = 34g/mol

Mass = number of mole x molar Mass

Mass of H2S = 1 x 34

Mass of H2S = 34g

Therefore, 34g of H2S is needed to react with 2 moles of AgNO3.

6 0
2 years ago
A substance with a mass of 50.0 g has a temperature change of 40.0
grigory [225]

Answer:

Mass=50.0g

H=670J

change in temperature=40

using. c=h÷m×change in temperature

c=670÷50×40

C=670÷2000

C=0.335jkg-1k-1

7 0
2 years ago
Read 2 more answers
Earth’s inner core:_____ as Earth’s outer core:liquid
KatRina [158]

Answer:However, unlike the outer core, the inner core is not liquid or even molten. The inner core's intense pressure—the entire rest of the planet and its atmosphere—prevents the iron from melting. The pressure and density are simply too great for the iron atoms to move into a liquid state.

Explanation:please give brainliest

5 0
1 year ago
Write the full ground state electron configuration of C − C− . electron configuration: Which neutral atom is isoelectronic with
stepan [7]

Answer: 1. Is2 2s2 2p3

2. Nitrogen

Explanation: The number of electron present In C = 6

But an extra electron is added since the charge on C is -1, this therefore makes the total electron 7.

1. By arrangement, the Electronic configuration is therefore;

Ans: 1s2 2s2 2p3

2. It is explained how C has 7 electrons, we can proceed then.

Neutral atom have atomic number of 7.

The element with atomic number of 7 is;

Ans: NITROGEN

7 0
3 years ago
Other questions:
  • For which molecule can the bonding be described in terms of sp3 hybrid orbitals of the central atom?
    6·1 answer
  • 1.<br> How<br> many atoms of Li are there in 7.5 moles of Li?
    7·1 answer
  • A volcano ejects a glowing chunk of lava straight up.
    12·1 answer
  • Describe the range of em radiation
    12·1 answer
  • An ion is an atom that has has gained or lost:
    7·1 answer
  • PLEASE HELP I will give you a brainliest
    15·2 answers
  • Kevin is working on a model that shows the positions of Earth, the Moon, and the Sun during the phases of
    12·2 answers
  • Write a balanced half-reaction for the reduction of bismuth oxide ion to bismuth ion in basic aqueous solution. Be sure to add p
    5·1 answer
  • What type of reaction occurs in a hand warmer?<br> Exothermic<br> Endothermic
    5·1 answer
  • Suppose you carry out a titration involving 1.90 molar CsOH and an unknown concentration of HI. To bring the reaction to its end
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!