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
Alex73 [517]
3 years ago
10

Unknown # 41

Chemistry
1 answer:
sveta [45]3 years ago
4 0

Answer:

KI

Explanation:

From the question, we can see that a qualitative analysis of the compound shows that it has a lilac flame colour. The lilac flame colour corresponds to the potassium ion (K^+).

Again, the test of addition of HNO3(aq) and AgNO3(aq) to a solution is a test for halogens. If the result is a green precipitate, then the ion present is the iodide ion (I^-).

Hence, the compound must be KI.

You might be interested in
2. How does a battery produce electricity?
Georgia [21]
A chemical reaction between the metals and the electrolyte frees more electrons in one metal than it does in the other. The metal that frees more electrons develops a positive charge, and the other metal develops a negative charge.
6 0
3 years ago
Which molecule is butyne?
postnew [5]

Answer:

The answer is B.

Explanation:

A P E X

5 0
3 years ago
If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the
HACTEHA [7]

Answer:

Explanation:

uestion

If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the

element?

3 0
4 years ago
8. How is acceleration dependent on the speed and direction of an object?
Sphinxa [80]

Answer:

if speed or direction changes then there is a change in velocity which is acceleration. Hope this helps!

Explanation:

3 0
3 years ago
The boron atom of BBr3 has
maks197457 [2]

Answer: The boron atom of BBr_3 has three hybrid orbitals

Explanation: Hybridization of the molecule can be calculated by:

Hyb=\frac{1}{2}(V+H-C+A)     .....(1)

where,

V =  number of valence electrons in the central metal atom

H = number of monovalent atoms

C = cationic charge

A = anionic charge

Here, electronic configuration of B = 1s^22s^22p^1

Number of valence electrons = 3

Number of monovalent atoms = 3

Cationic charge = 0

Anionic charge = 0

Putting these values in equation 1, we get

Hyb=\frac{1}{2}(3+3-0+0)=3

As the Hybridization is 3, which means that boron has 3 hybrid orbitals.

4 0
4 years ago
Read 2 more answers
Other questions:
  • What comes right before the "analyzing the data" step of the scientific
    14·1 answer
  • What is the major organic product obtained from the following sequence of reactions? PhCH2CHO PhCH2CH2CHO PhCH2CH2COOH PhCH2COOH
    10·1 answer
  • How should the enthalpy of an intermediate step be manipulated when used to produce an overall chemical equation?
    11·2 answers
  • An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?
    7·1 answer
  • The atomic number of fluorine is 9. what is the mass number of a fluorine atom with 8 neutrons?
    10·1 answer
  • Wat is atomic in science
    5·1 answer
  • need some help with just one question please help.What is the pH of a 9.7 x 10-5 M NaOH solution? (2 formulas)​
    9·1 answer
  • How many moles are there in 73 g of aluminum?
    8·1 answer
  • Which of the answers does not represent a common type of air pollution? A) agricultural ammonia B) carbon monoxide exhaust C) su
    5·1 answer
  • substance x reacts with sodium carbonate to form a gas . The gas turns lime water cloudy. What is substance K and which process
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!