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
My name is Ann [436]
2 years ago
13

Name an example of a d-block element having one 4s electron.

Chemistry
1 answer:
swat322 years ago
7 0
So base on your question i have to give and example of a d-block elements having one 4s electron and the best answer to this question base on my research is Copper, Chronium, I hope you are satisfied with my answer and feel free to ask for more
You might be interested in
a child runs 60m race with an average speed of 4 m/s.how long did the child take to complete the race? give the correct unit for
Elis [28]

Answer:

option c. i took the quiz

Explanation:

8 0
2 years ago
The four sets of lines in the hydrogen emission spectrum are known as Balmer, Brackett, Paschen, and Lyman. For each series, ass
arlik [135]

Answer:

Hydrogen spectrum

Explanation:

Balmer series - Observed in the visible region

Brackett series - Observed in the infrared region

Paschen series - Observed in the infrared region

Lyman series - Observe in the Ultraviolet region.

8 0
3 years ago
HHHHHEEEELLLLLPPP PPPLLEEASEEE I GIVE BRAINLIEST!!!!!!!!!
svet-max [94.6K]
1. a. FeS + 2HCl --> FeCl2 + H2S
    b. This is a double- replacement reaction. (The elements "switch partners".)

2. a.2Na + F2 --> 2NaF
    b. This is a composition/synthesis reaction. (The two reactants are combining or synthesizing to make one product.)

3. a. 2HgO --> 2Hg + O2
    b. This is a decomposition reaction. (The single reactant is breaking down or "decomposing" into multiple reactants.)

4. Hydrogen gas reacts with oxygen gas to create water in a composition/synthesis reaction.

I hope these answers will help you! If you need any explanation, ask and hopefully I can get back to you. ;)
8 0
3 years ago
2.
katovenus [111]

Answer:

A. 6atm

Explanation:

Using pressure law equation:

P1/T1 = P2/T2

Where;

P1 = initial pressure (atm)

T1 = initial temperature (K)

P2 = final pressure (atm)

T2 = final temperature (K)

According to this question;

P1 = 3 atm

P2 = ?

T1 = 120K

T2 = 240K

Using P1/T1 = P2/T2

3/120 = P2/240

Cross multiply

240 × 3 = P2 × 120

720 = 120P2

P2 = 720/120

P2 = 6atm

4 0
2 years ago
How many milligrams of sodium sulfide are needed to completely react with 25.00 ml of a 0.0100 m aqueous solution of cadmium nit
NARA [144]
Na₂S(aq) + Cd(NO₃)₂(aq) = CdS(s) + 2NaNO₃(aq)

v=25.00 mL
c=0.0100 mmol/mL
M(Na₂S)=78.046 mg/mmol

n(Na₂S)=n{Cd(NO₃)₂}=cv

m(Na₂S)=M(Na₂S)n(Na₂S)=M(Na₂S)cv

m(Na₂S)=78.046*0.0100*25.00≈19.5 mg
5 0
3 years ago
Read 2 more answers
Other questions:
  • 8. Ascorbic acid (Vitamin C) cannot be stored in the body, so it must be supplied in the diet. It is a C, H, O compound. If 7.75
    14·1 answer
  • When magnesium is ignited in air, the magnesium reacts with oxygen and nitrogen.
    9·2 answers
  • Predicting nuclear stability is important when determining whether or not a nuclear reaction can take place spontaneously.Use th
    12·1 answer
  • Transamination removes the amino group to form a carbon skeleton that contains
    5·2 answers
  • When 8.30 mol Mg react with 13.5 mol HCI, what is the limiting reactant and how many moles of H2 can be formed?
    8·1 answer
  • The tabulated data were collected for this reaction:
    13·1 answer
  • SOMEONE HELP ASAPP...
    11·2 answers
  • Hydrofluoric acid (HF) can be prepared according to the following equation:
    8·2 answers
  • What is oxidized in an electrolytic cell with aluminum and gold electrodes?
    5·1 answer
  • What is the standard electrode potential for a galvanic cell constructed in the appropriate way from these two half-cells?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!