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VARVARA [1.3K]
3 years ago
7

I need hellppp please.

Chemistry
1 answer:
sasho [114]3 years ago
4 0
C3H8.gas reacts with 5L of O2 at STP
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How many atoms are in 3.4 moles of iron
nikitadnepr [17]
<h3>Answer:</h3>

2.047 × 10^24 atoms

<h3>Explanation:</h3>
  • We need to know that 1 mole of an element contains atoms equivalent to the Avogadro's constant.
  • The Avogadro's constant is 6.022 × 10^23.
  • Therefore, 1 mole of Fe contains 6.022 × 10^23 atoms.

In this case we are given 3.4 moles of Iron.

we are required to find the number of atoms in 3.4 moles.

Therefore, since 1 mole of Fe contains 6.022 × 10^23 atoms.

Then, 3.4 mole will contain;

= 3.4 moles × 6.022 × 10^23 atoms/mole

= 2.047 × 10^24 atoms

Thus, 3.4 moles of Iron contains 2.047 × 10^24 atoms

4 0
3 years ago
Which tool would best allow you to make observations of an objects color and texture
netineya [11]

Answer:

what was it

Explanation:

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What happens if you rub a balloon against wool and put it against water dripping from a cup
Goryan [66]

Answer:

The water bends due to the static electricity on the balloon.

Explanation:

The static electricity you built up by rubbing it against the balloon attracts the stream of water, bending it towards the comb or balloon like magic!

Negatively charged particles called electrons jump the wool to the balloon as they rub together, the comb now has extra electrons and is negatively charged. The water features both positive and negatively charged particles and is neutral. Positive and negative charges are attracted to each other so when you move the negatively charged balloon towards the stream, it attracts the water's positively charged particles and the stream bends!

8 0
3 years ago
Which two substances have no fixed shape and no fixed volume?
zalisa [80]

Answer:

Gases

Explanation:

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The solubility of a gas dissolved in a liquid increases as the temperature of the liquid increases.
statuscvo [17]

Answer: True

Explanation:

6 0
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