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
konstantin123 [22]
2 years ago
6

Whoever answers I will give brainliest!! IS COBALT A METAL, METALLOID, NONMETAL, OR NOBLE GAS?

Chemistry
1 answer:
Shkiper50 [21]2 years ago
7 0
Cobalt is a silver-grey metal
You might be interested in
El numero de moles en 70 gramos de HF
saveliy_v [14]

Answer:

enviornmental health perspectives

Explanation:

7 0
3 years ago
Read 2 more answers
A measurement of 5.685 × 10-6 is equivalent to 0.000 000 568 5.<br><br> True<br> False
Alecsey [184]
The answer is false.
7 0
3 years ago
A person weighed 15 pennies on a balance and recorded the following masses:
Artist 52 [7]

Answer:

A)  yes

B) The average mass of 12 pennies should be expressed as

( 3.131 + 3.129 + -------- X12 ) g /  12

where X12 = is the mass of the 12th penny

Explanation:

A) I think the the Bureau of Mint changed the way it made pennies because from the experiment and observation carried out on 15 different pennies it can be seen that they had different weights and this difference is associated with the period/time of production of the different pennies,

B ) The average mass of any object should be expressed in the si unit of mass and not having ($) sign attached to the value instead it should be expressed in grams or kilograms (s.i unit of mass )

The average mass of 12 pennies should be expressed as

( 3.131 + 3.129 + -------- X12 ) g /  12

where X12 = is the mass of the 12th penny

4 0
3 years ago
Values for the molar mass of nitrogen, oxygen, and nitrogen dioxide molecules are given in the table below. What mass of nitroge
Gnoma [55]

Answer:

A). 92.02g

Explanation:

Equation of the reaction;

N2 (g)+ 2O2(g)------> 2NO2(g)

Note that the balanced reaction equation is the first step in solving any problem on stoichiometry. Once the reaction equation is correct, the question can be easily solved.

Reaction of one mole of nitrogen gas with two moles of oxygen gas yields two moles of nitrogen dioxide.

Mass of two moles of nitrogen dioxide= 2[14 + 2(16)] = 2[14+32]= 2[46]= 92 gmol-1

Therefore; Mass of two moles of nitrogen dioxide is 92

4 0
3 years ago
Elements in the 2nd family/group gain or lose electrons? *
Savatey [412]
They lose electrons
6 0
2 years ago
Other questions:
  • What does the latent heat of fusion measure?
    7·2 answers
  • What is the concentration,in molarity, of a solution containing 10 moles of copper(ii) nitrate in 5.0 liters of solution?
    6·1 answer
  • Why are valence electrons important when considering the bonds that form between atoms g
    11·1 answer
  • A gas has a volume of 1.4 liters at STP. What is the new volume when the temperature is changed to 40 K and the pressure is chan
    10·1 answer
  • Convert 30°C into kelvin
    7·1 answer
  • What is the connection between natural capital, natural income, and an environmentally sustainable society? (ENVIRONMENTAL SCIEN
    11·1 answer
  • Consciousness utilizes which parts of the brain?
    5·2 answers
  • AN object has a volume<br> of 77ml and a mass of<br> 429. What is the density<br> of this object?
    14·1 answer
  • Why isn't every point exactly on the 'best fit line'? Give a reason and explain
    7·1 answer
  • 6. Explain a situation in which elastic potential energy could be transformed into kinetic energy.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!