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
ANTONII [103]
3 years ago
8

Atomic symbol that has 29 protons

Chemistry
1 answer:
LekaFEV [45]3 years ago
3 0
Copper atom has 29 protons and 34 neutrons in its nucleus
You might be interested in
A chemist has synthesized two new dyes based on the molecular structure of plant-based dyes. The lowest energy absorption line f
Nimfa-mama [501]

Answer:

1. The dye that absorbs at 530 nm.

Explanation:

The dye will absorb light to promote the transition of an electron from the HOMO to the LUMO orbital.

The higher the gap, the higher the energy of transition. The energy can be calculated by E = hc/λ, in which h and c are constants and λ is the wavelength.

The equation shows that the higher the energy, the higher the gap and the lower the wavelength.

Therefore, the dye with absorption at 530 nm has the higher HOMO-LUMO gap.

8 0
3 years ago
1) A toy car with a mass of 2.35 kg is pushed with a force of 21.6 N. What is the acceleration of the car?
Nataly_w [17]

Answer:

The acceleration of the car is 9,19 m/s2

Explanation:

We use the formula: F=m x a---> a=F/m

a=21,6N/ 2,35kg       1N is 1kgxm/s2

a=21,6 kg x m/s2 x 2,35 kg

a=9,191489362  m/s2

6 0
3 years ago
If 30 ml of water containing 15 mg of salicylate is extracted with 30 ml of chloroform, 2.59 mg of salicylate remains in the wat
In-s [12.5K]

Answer:

Distribution coefficient: 4.79

Explanation:

Distribution coefficient is the ratio between equilibrium concentration of non-aqueous phase and aqueous phase where both solvents are inmiscible. The equation for the problem is:

Distribution coefficient: Concentration in chloroform / Concentration in Water

<em>Concentration in water: 2.59mg / 30mL = 0.08633mg/mL</em>

<em>Concentration in chloroform: (15mg-2.59mg) / 30mL = 0.4137mg/mL</em>

<em />

Distribution coefficient: 0.4137mg/mL / 0.08633mg/mL

<h3>Distribution coefficient: 4.79</h3>
8 0
2 years ago
All of the following are strong acids except
IgorC [24]

Answer:

acetic acid

Explanation:

6 0
2 years ago
Read 2 more answers
Question 14 of 35 How is a scientific law different from other laws in society? A. A scientific law is what scientists have deci
ivolga24 [154]

Hello there,

<em><u>Option B</u></em>. "A scientific law describes what always happens under specific conditions in nature." is the correct answer.

✍️ <em>By </em><em>Benjemin</em><em> </em>

6 0
2 years ago
Read 2 more answers
Other questions:
  • 10 Points
    10·1 answer
  • Which formula is both a molecular and an empirical formula?
    9·2 answers
  • When cool, dense air come over the water flows inland, it's called a?
    13·1 answer
  • What is the name of the compound with the formula N2O4?​
    9·1 answer
  • When a star dies which of these celestial objects is it most likely to help create ?
    12·2 answers
  • The most ideal way to perform a two-point turn is by
    14·1 answer
  • By pushing backwards a roller skater moves forward. This is an example of Newton's
    5·1 answer
  • !!!!HELP PLEASE!!!!!Which of the following molecules has a trigonal pyramidal shape?
    14·2 answers
  • PLEASE HELP 8TH GRADE SCIENCE. which of the following is the correct Lee abbreviated SI unit describing the mass of an object
    15·2 answers
  • Xenon-135 is produced in a nuclear reactor by two primary methods. one is directly from fission, the other is from the decay of:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!