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
muminat
2 years ago
6

1010L

Chemistry
1 answer:
kobusy [5.1K]2 years ago
8 0

Answer:

2

Explanation:

a peace of metal may be heatedin a fire until it glows,but the metal is the same material before heating and after cooling

You might be interested in
Is anyone having a <br> meeting only for studies?
koban [17]

Answer:yes

Explanation:

4 0
3 years ago
Read 2 more answers
Suppose that 25,0 mL of a gas at 725 mmHg and 298K is converted to
posledela

The new volume : 21.85 ml

<h3>Further explanation</h3>

Given

V1=25,0 ml

P1=725 mmHg

T1=298K is converted to

T2=273'K

P2=760 mmHg atm

Required

V2

Solution

Combined gas law :

\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}

Input the value :

V2=(P1.V1.T2)/(P2.T1)

V2=(725 x 25 ml x 273)/(760 x 298)

V2=21.85 ml

5 0
2 years ago
PLEASE HELP I BEG
Gwar [14]

Answer:

1.Velocity and pitch

2.The unit of vibration is hertz. The number of oscillations of an oscillating body per second is known as frequency. Complete step by step answer: The time taken by a vibrating body to complete one vibration is time period.

3.Frequencies above 20,000 Hz are known as ultrasound.

5 0
3 years ago
1 point<br> How many moles of CO2 are there in 100.0 grams of CO2?
VikaD [51]

44.0095 you're welcome hope this helps

3 0
3 years ago
Read 2 more answers
Hund's rule states that electrons must spread out within a given subshell before they can pair
Temka [501]

Answer:

Groups 14, 15, and 16 have 2,3, and 4 electrons in the p sublevel (p sublevel has 3 "spaces" AKA orbitals), because Hunds says one in each orbital before doubling up if you had 2 electrons, group 14, they would both be in the first orbital, with 3 electrons, group 15, two in the first orbital one in the 2nd none in the 3rd. With 4 electrons, group 16, then you would have 2 in the first 2 orbitals and NONE in the 3rd.

Explanation:

If you are in group 13 you only have 1 electron so it can only be in one orbital. with group 17, you have 5 electrons, so 2 in the first 2 in the second and 1 in the 3rd, correct for Hunds rule anyway. Noble gasses, group 18, have 6 elecctrons, so every orbital is full any way you look at it.

6 0
2 years ago
Other questions:
  • A gas has a volume of 6.46L at 1.06 atm and 77.2°C. What is the volume of the gas (in L) at STP​
    11·2 answers
  • 17. When 1 mol of the following substances react completely with oxygen, the
    10·2 answers
  • Name the source of lactose and name the type of enzyme that is required to digest it
    15·1 answer
  • You are given an unknown mixture containing NaCl and NaHCO3. When you carry out the heating exactly as described in part A, only
    6·1 answer
  • Milk spoiled is what type of change
    12·2 answers
  • Which of the following is not a base <br> a)orange <br> b)shampoo <br> c)toothpaste <br> c)bleach
    7·2 answers
  • How many calories is 130. joules?
    11·1 answer
  • Which particle is an atom with only 10 neutrons in its nucleus ?
    7·1 answer
  • 2. The approximate concentration of hydrochloric acid, HCl, in the stomach (stomach
    8·1 answer
  • Nitrogen gas was collected by water displacement. What was pressure of the N, collected if the temperature was 22 °C?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!