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Rudik [331]
4 years ago
7

1. Energy changes occur as *

Chemistry
1 answer:
alexandr1967 [171]4 years ago
3 0
Number 3 i think is <span>d.heat moves from an object of higher temperature to an object of lower temperature</span>
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5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solut
Ksju [112]

Answer:

Molarity is a sort of concentration for solutions. When you talk about it, means mols of solute, that are in 1000 ml of solution. The molarity at this is 0.57M

Explanation:

As you have the solution in a volume of 150ml with 5 g of solute, in 1000 ml how much solute, do u have? The answer is 33.333g so now, you have to take the molar mass of NaCl and get the mols. Mass/molar mass, you will get the moles, so 33,3333 g / 58,44 g/m is 0.570 moles. That's M

6 0
4 years ago
A car designer is designing a new model of a popular car. He wants to use the same engine as in the old model but improve the ne
DaniilM [7]

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. F = ma; a = F/m. This means that Force over the mass. In order to improve the acceleration without redesigning is that the company has to improve the force assuming that the mass is still the same.



4 0
3 years ago
What state of matter has a fixed amount of volume but can change shapes according to its container?
valkas [14]

Yes, it is a liquid because a solid is a state of matter with a fixed volume and shape; and Gases take both the shape and the volume of their container; and liquid is the one that takes the shape of their container but not necessarily the volume.

3 0
3 years ago
Pls help me, ill mark brainliest and give 5 stars
Maslowich

Answer:

Decomposition!

5 0
3 years ago
Read 2 more answers
What is the simplest formula of a solid containing a, b, and c atoms in a cubic lattice in which the a atoms occupy the corners,
Ilya [14]

Answer:

c. abc₃  

Step-by-step explanation:

1. a atoms

There are eight corners, each containing an a atom.

No. of a atoms = 8 × ⅛

No. of a atoms = 1

=====

2. b atoms

There is one central b atom.

=====

3. c atoms

There are six faces, each containing a c atom.

No. of a atoms = 6 × ½

No. of c atoms = 3

=====

4. Formula

The simplest formula is abc₃.

4 0
4 years ago
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