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
barxatty [35]
3 years ago
15

The element which has atomic number 17 is considered from... A. Metals B. Non-metals C. Noble gas D. No correct answer Please ex

plain with your answer.
Chemistry
1 answer:
jeyben [28]3 years ago
7 0

Answer:

B. Non-metals

Explanation:

The element with the atomic number of 17 is Cl.

Chlorine belongs to the group 7 in the periodic table. It is a non metal.

Correct option: B. Non-metals

You might be interested in
Draw the lewis structure for the molecule ch2chch3. how many sigma and pi bonds does it 30) contain
juin [17]
Answer:
            1-Propene has eight sigma bonds and one pi bond.

Explanation:
                   The lewis structure of 1-Propene is shown below. All sigma bonds are highlighted by blue color and the pi bond is highlighted by red color.
                   Carbon having four unpaired electrons in its excited state can form four covalent (sigma bonds) bonds. In given structure the orbitals containing unpaired electron in sp³ hybridized C undergo head to head overlap with three hydrogen atoms having single unpaired electron and orbital of other sp² hybridized carbon in same fashion. So, four sigma bonds are formed by sp³ hybridized carbon atom.
                    The doubly bonded carbon atoms also form sigma bond but two unpaired electrons of these two carbons undergo the formation of pi bond. This pi bond forms when the orbitals overlap along the plane perpendicular to the existing sigma bond resulting in the formation of single pi bond.

8 0
3 years ago
Forces that act between two molecules are referred to as intermolecular forces true or false
julsineya [31]
Answer:
            TRUE: <span>Forces that act between two molecules are referred to as Intermolecular Forces.

Explanation:
                   Those forces which are present within the molecule among atoms are called as Intramolecular Forces, while, The forces which are present between two molecules are called as Intermolecular Forces. Intermolecular Forces are as follow,

                1) Hydrogen Bond Interactions

                2) Dipole-Dipole Interactions

                3) London Dispersion Forces</span>
3 0
3 years ago
A volume of 80.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. I
murzikaleks [220]

Answer:

The mass of the steel bar is 26.833 grams

Explanation:

<u>Step 1: </u>data given

ΣQ gained = ΣQ lost

Q=m*C*ΔT

with m = mass in grams

with C= specific heat capacity ( in J/(g°C))

with ΔT = change in temperature = T2-T1

Qsteel = Qwater

msteel * Csteel * (T2steel - T1steel) = mwater * Cwater * (T2water - T1water)

Mass of steel = TO BE  DETERMINED

mass of water =⇒ since 1mL = 1g : 80 mL = 80g

Csteel =0.452 J/(g °C

Cwater = 4.18 J/(g °C

initial temperature steel T1 : 2 °C

final temperature steel T2 = 21.3 °C

initial temperature water T1 =22 °C

final temperature water T2 = 21.3 °C

<u>Step 2:</u> Calculate mass of steel

msteel * Csteel * (T2steel - T1steel) = mwater * Cwater * (T2water - T1water)

msteel * 0.452 *(21.3-2) = 80 * 4.18 * (21.3-22)

msteel = (80 * 4.18 * (-0.7)) / (0.452 * 19.3)

msteel = -234.08 / 8.7236

msteel = -26.833 g

Since mass can't be negative we should take the absolute value of it = 26.833g

The mass of the steel bar is 26.833 grams

6 0
3 years ago
20 points! So I got this lab report to do and I need some more info it's about lab safety got any info I can use! :) If so, Than
FromTheMoon [43]
Don’t eat or drink in labs

Dress for the lab; don’t wear open toed shoes

Dispose of lab waste properly

No horse play

Don’t taste or sniff things in the lab

Tire your hair back
8 0
3 years ago
Which of the following is true about elements?
kondor19780726 [428]

Answer:

The first one

Explanation:

Elements are as simple as it gets

6 0
3 years ago
Other questions:
  • Inorganic compounds contain carbon true or false
    11·2 answers
  • A compass needle points north when let it move freely. why do scientist think this happened?​
    11·1 answer
  • At stp potassium is classified as?
    5·1 answer
  • One tank of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. to obtain a mixture of
    10·1 answer
  • You know the deal kingdom
    8·1 answer
  • Hydrogen peroxide decomposes spontaneously to yield water and oxygen gas according to the following reaction equation. 2H202(aq)
    5·1 answer
  • Help which one is correct
    8·1 answer
  • Which resource is the best for information about current events? biography encyclopedia newspaper
    10·1 answer
  • At which location would an object’s weight be the greatest?
    12·2 answers
  • Type the correct answer in the box. Spell all words correctly. In which system are both energy and matter exchanged with the sur
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!