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
Likurg_2 [28]
3 years ago
5

Again with the chemistry questions all help is appreciated :’)

Chemistry
2 answers:
kakasveta [241]3 years ago
5 0

Answer:

The answer is Rubidium

Explanation:

The number of protons is unique for each element. It is also identified as an element’s atomic number. Look for an element with the number of protons as the atomic number to find the unidentified element.

Effectus [21]3 years ago
4 0

Answer:

Hello again, I think the option will be the third one Rubidium im highly sure because the periodic table goes by the number of protons which in your question is 37. So yeah it will be rubidium.

Explanation:

Look for 37 protons in the periodic table.

You might be interested in
Question 4 of 10
fredd [130]

Answer:

c

Explanation:

because of the law of gravity

6 0
2 years ago
What is the mass of 8.03 mole of NH3? (NH3 is 17g/mol)
lana [24]

Answer:

the mass of 8.03 mole of NH3 is 136.51 g

Explanation:

The computation of the mass is shown below:

As we know that

Mass = number of moles × molar mass

= 8.03 mol  × 17 g/mol

= 136.51 g

Hence, the mass of 8.03 mole of NH3 is 136.51 g

We simply multiplied the number of moles with the molar mass so that the mass could come

3 0
3 years ago
2.822 mol of nickel has _________ atoms of nickel.<br><br> (Enter just the number for this one.)
Irina-Kira [14]

Hello!

To find the number of atoms in 2.822 moles of nickel, we need to multiply it by Avogadro's number. Avogadro's number is 6.02 x 10^23 atoms.

2.822 moles x (6.02 x 10^23) ≈ 1.698844 x 10^24

Therefore, there are about 1.70 x 10^24 atoms (according to the number of significant figures) in 2.822 moles of nickel.

6 0
3 years ago
Find the mass of each of these substances? 2.40 mol NaOH
damaskus [11]
Na = 23 x 2.40 = 55.2
O = 16 x 2.40 = 38.4
H = 1 x 2.40 = 2.40

55.2 + 38.4 + 2.4 = 96

2.40 mol of NaOH = 96 amu

4 0
3 years ago
The density of aluminium is 2.7 g/cm3. Find the mass in grams of a bar of aluminum measuring 2.7 cm by 1.2 cm by 14.3 cm.
Fofino [41]

Answer:125.0964g

Explanation:

Density = mass/volume

Density = 2.7 gcm-3

Volume=2.7*1.2*14.3=46.332

Mass=?

Mass= density* volume

= 2.7× 46.332=125.0964g

4 0
3 years ago
Other questions:
  • Why are atoms considered the smallest particles of an element?
    15·2 answers
  • Si las partículas en una muestra de materia se atraen entre sí pero pasan facilmente entre sí la materia es
    12·1 answer
  • Which statements best describe displacement? Check all that apply. Displacement is measured along the path an object travels. Di
    12·2 answers
  • What is the pOH of a 4.8 x 10^-10 M H+ solution?
    12·2 answers
  • In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions)
    5·1 answer
  • PLEASE HELP ONLY ONE QUESTION
    14·2 answers
  • Which element is probably most like carbon
    13·1 answer
  • if the force between two charged particles increases,but the distance between them does not change, then:
    12·1 answer
  • Which order is correct in listing the bond lengths from shortest to longest?
    14·1 answer
  • What layer of the skin contains blood vessels, nerves and hair follicles?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!