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
Sedaia [141]
3 years ago
13

Need major help. Help me please

Chemistry
1 answer:
jek_recluse [69]3 years ago
6 0
Uhhh, that looks like a game. I don't know how to tell u the answers for that thing -_-
You might be interested in
How many grams of Mg(NO3)2 would be produced? please show how you got the answer​
Len [333]

Answer:

148 grams of relative atomic mass

Explanation:

magnesium atomic mass : 24

nitrogen : 14

oxygen : 16

24 × 1

14 × 1 × 2

16 × 3 × 2

24 + 28 + 80 = 148 grams

7 0
3 years ago
What is the molar mass of Pb(Cr2O7)2
bagirrra123 [75]

Answer:

The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.

6 0
2 years ago
Read 2 more answers
How many sub-energy levels does the 2nd MEL have?
DedPeter [7]

Answer:

n=  | Shell            |       Maximum Number of Electrons

1    | 1st Shell      |      2

2   | 2nd Shell      |      8

3   | 3rd Shell        |      18

4   |  4th Shell        |      32

Explanation: cause :)

5 0
3 years ago
When a new bond forms in a chemical reaction, what happens?
Kisachek [45]
The answer to this question would be A. Energy is released. 

When a chemical bond is a form, the bond will either suck up energy or produce energy. So, to be precise the energy is not always released but also can be absorbed. In this case, the energy released number will be a minus.

Options B and C is definitely wrong since the bond is formed by an electron, it won't affects neutron/proton.
Option D might be true since the product is made of 2 or more atoms then it would seem larger. But the size of the actual atom won't be increased.

8 0
3 years ago
Read 2 more answers
A student has a mass of 90 kg what would his weight be on mars if the acceleration due to gravity is 3.7 ?
Mumz [18]

Answer:

333N

Explanation:

Once we have the object's mass, we can find the weight by multiplying it by the gravitational force, which it is subject to. Being that Mars has a gravitational force of 3.7m/s2, we multiply the object's mass by this quantity to calculate an object's weight on mars.

So an object or person on Mars would weigh 37.83% its weight on earth. Therefore, a person would be much lighter on mars. Conversely, a person is 62.17% heavier on earth than on Mars.

3 0
3 years ago
Other questions:
  • The pka of the α-carboxyl group of glutamine is 2.17, and the pka of its α-amino group is 9.13. calculate the average net charge
    13·2 answers
  • Is ice melting in a drink a chemical change?
    15·1 answer
  • How did Thomson discover the electron?
    12·1 answer
  • Which physical method can separate a mixture of steel ball bearings and marbles ?
    6·2 answers
  • What is the unknown metal if the temperature of a beaker of 100ml of water was raised 17c to 19 c when 21 grams of the metal at
    10·1 answer
  • If an atom of nitrogen bonded with an atom of aluminum , what kind of bond would form
    14·1 answer
  • • Reaction rate increased by an increase of surface area of a
    13·1 answer
  • During the time period than an El Nino is occurring, there is a buildup of cold water of the west coast of South America there i
    15·1 answer
  • Does a negative exponent mean that the number is less than 1​
    10·1 answer
  • True or Fase. Every substance has to be classified as either acid or base?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!