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3 years ago

Which do you use to qualify matter?

Chemistry

1 answer:

zepelin [54]3 years ago

6 0

Answer:

c balance

Explanation:

if you weigh something, you prove it's there.

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The population of the world nearly doubled between the years of 1965 and 2000.

den301095 [7]

True. The world population in 1965 was 3.324 billion . In 2000 the world population was 6.115 billion. The difference is 2.791.

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3 years ago

Which type of energy is stored within an object and is partially determined by the object’s position?

Vsevolod [243]

It is A. Electrical energy

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3 years ago

Read 2 more answers

Calculate the molecular (formula) mass of each compound: (a) iron(ll) acetate tetrahydrate; (b) sulfur tetrachloride; (c) potass

Nutka1998 [239]

Answer:

a) Iron(ll) acetate tetrahydrate: 245,68 g/mol

b) Sulfur tetrachloride: 173,87 g/mol

c) Potassium ermanganate 158,034 g/mol

Explanation:

To solve this kind of exercises you must look for the number of atoms in each molecule first, then look on the periodic table the atom weight and the multiply the atom weight times the quantity of each atom. For instance:

The molecule of Iron(II) acetate itetrahydrate is (CH3COO)2Fe•4H2O, it means that you have:

2 atoms of carbon times the atomic weight of C (12.00g/mol)= 24g

14 atoms of Hidrogen times the atomic weight of H (1,00g/mol)= 14g

6 atoms of Oxigen times the atomic weight of O (16,0g/mol)= 96

2 atoms of Iron times the atomic weight of Fe (55,84g/mol)= 111,68g

At last, you only have to add the results: 24+14+96+11,68= 245,68g/mol. This example was for the first molecule.

See you,

5 0

3 years ago

Angry pomeranian x bones? broken\broccoli boy anyone?

mezya [45]

Makes zero sense. What’s the question?

7 0

3 years ago

Question 1 Of the following which displays a positive energetic process?

TiliK225 [7]

We can describe a positive energetic process as any process which increases the internal energy of the system.

A positive energetic reaction or process is often referred to as being Endothermic. This means that the system which is performing the process absorbs energy. Some examples include:

Boiling an Egg
Roasting food over a fire (the food is the reference system)

etc

Therefore, we can confirm that a positive energetic process is one in which the system in question absorbs energy, thus increasing its internal energy.

Since I could not locate the options online, I have provided a general explanation of the concept coupled with a few examples.

To learn more visit:

brainly.com/question/4345448?referrer=searchResults

5 0

2 years ago