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krok68 [10]
3 years ago
9

3. What are the Earth's Poles? *

Chemistry
2 answers:
WARRIOR [948]3 years ago
6 0

Explanation:

I think the answer is 2nd

babunello [35]3 years ago
5 0
Well it’s definitely not the first option
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Wich has a larger percent by mass of sulfur - H2SO or H2S7O8?
Pie

Answer:

Explanation:

H2SO4 let S be x

2(1) + x + 4(-2) = 0

2 + x - 8 = 0

x - 6 = 0

x = 6

For H2S7O8 let S be x

2(1) + 7(x) + 8(-2) = 0

2 + 7x - 16 = 0

7x - 14 = 0

7x = 14

x = 14/7

x = 2

:- H2SO4 as the larger percentage

5 0
3 years ago
How many atoms are there in one molecule of C22H44O?
Alik [6]

Answer:

64

Explanation:

8 0
3 years ago
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6. According to the ideas of Democritus and Dalton, which of the following
Varvara68 [4.7K]

Answer: The wire is still copper and does not change by cutting it

Explanation:

Democritus postulated that all materials were composed of these tiny particles called as "atomos".

Daltons postulates are:.

1. All matter is made of very tiny particles called atoms.

2. Atoms is indivisible.

3. Atoms of a given element are identical in mass and chemical properties.

4. Atoms of different elements have different masses and chemical properties.

5. Atoms combine in the ratio of small whole numbers to form compounds.

6. The relative number and kinds of atoms are constant in a given compound.

Thus when copper wire is cut into the smallest  possible pieces, the atoms were intact as they are indivisible and all atoms have same mass and chemical properties.Thus the wire is still copper and does not change by cutting it

4 0
3 years ago
What is the empirical formula for propene (C3H6)?<br> C2H4<br> C4H8<br> C3H6<br> CH2
melamori03 [73]

Answer:

C3H6

Explanation:

please mark me as brainlest

8 0
3 years ago
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The last group on the periodic table is called the noble gases. The elements in this group are
Anni [7]

Answer:

C

Explanation:

They are stabil and full of valence electron.

6 0
3 years ago
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