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alisha [4.7K]
3 years ago
5

What is the right answer to these questions?

Chemistry
1 answer:
Damm [24]3 years ago
4 0
I think the first one is negative electrons. The second one might be to achieve a higher energy state
You might be interested in
Rank the states of matter from the LEAST amount of energy to MOST
nataly862011 [7]

Answer:

The ranking of matter from the LEAST amount of energy to MOST amount of energy is;

B. Solid, Liquid, Gas

Explanation:

The kinetic energy of the particles that make of matter depends on the temperature of the particles and the particles are constantly vibrating

Solid state (Least amount of energy)

In the solid state, the matter is held in solid (rigid) crystal lattice and the particles are rigidly located next to other adjacent particles and stacked up layer by layer

Liquid state (Intermediate amount of energy)

As the temperature of the particles are increased by heating, the particles (atoms and molecules) gain more kinetic energy and their vibration is increased which on further heating, leads to the breaking of the lattice bond of the solid state and the particles are then readjusted to exist side by side rather than being stacked on one another and the assume the liquid state

Upon further heating the particles in the liquid acquire more energy and are  and rather than exist side-by-side, they are able to exist as individual particles in the gaseous form

Gaseous state (Most amount of energy)

From the kinetic theory of matter, the molecules of matter in the gaseous state contains enough energy which is more than the intermolecular forces of attraction such that the particles are able to move and occupy the entire volume of the container in which it is placed

Therefore, the correct option is Solid, Liquid, Gas.

8 0
3 years ago
Which of the following models best demonstrates the law of conservation of mass??
Svetradugi [14.3K]

Answer:

i think its D

Explanation:

The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.

5 0
3 years ago
During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easil
Marat540 [252]
Given the length of each side of a cube and its mass, the density can be obtained which can then help identify the type of material it's made of. This is because density is a unique and intrinsic property of materials. For this problem, the density is determined to be 10g/cm^3. Looking at a table of densities, the metal is most likely actinium, which has an exact density of 10 g/cm^3.
4 0
4 years ago
Read 2 more answers
How many moles of H2SO4 are present in 3.63 liters of a 0.954 M solution?
azamat
For this problem, we will use the formula setup for Molarity. 
The formula is M= moles
                               ---------
                                liters

So, lets plug in the numbers we have. We know M= 0.954, and L (liters)= 3.63. Lets plug that into our equation.
                         
                         x
         0.954= -----
                     3.63

As we can see, our moles are unknown.
So, lets multiply 0.954 times 3.63 to get our moles. 
0.954 x 3.63 equals 3.46302.

We know this is our correct answer, because when we divide 3.46302 and 3.63, we get 0.954.

Why?
Because when we divide the moles by liters, we get the molarity.

I hope I helped!!!!!

Here are some common units to know if my units confused you.
M= Molarity, which is what we find by dividing moles by liters
mol= Moles
L= Liters

5 0
4 years ago
How do you determine number of valence electrons an element has
Helen [10]

Answer:the first column has one valance electron the second has 2 and so on.

The only exception is helium that has 2.

Explanation:

5 0
3 years ago
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