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Reil [10]
4 years ago
8

I got a few questions

Chemistry
2 answers:
saveliy_v [14]4 years ago
7 0
1.) No we are not alone in the universe.
2.) We are the only species on this planet with the foresight capable of deliberately plotting a path toward a desirable long-term future. Plan it for the apes; because they can’t.
3.) the state of being awake and aware of one's surroundings.
4.) Dreams are basically stories and images our mind creates while we sleep. ... Dreams can occur anytime during sleep. But most vivid dreams occur during deep, REM (rapid eye movement) sleep, when the brain is most active.
5.) Definition of Solar Energy. When the sun's energy reaches the earth in the form of sunlight, it can be converted into other forms of energy. The sun is a huge ball of gas, mostly hydrogen with a little helium.
irinina [24]4 years ago
7 0

1. We don't know yet, but personally I think there are "aliens" in the universe

2. Humans communicate with a very complex language plus we're not crazy like animals

3. the state of being aware

4. I think we dream so the brain can sort out all of our memories throughout the day.

5. The sun gives us many different types of vitamins through our skin.

You might be interested in
1. How many ATOMS of boron are present in 2.20 moles of boron trifluoride ? atoms of boron.
maks197457 [2]

Answer:

1. How many ATOMS of boron are present in 2.20 moles of boron trifluoride? atoms of boron.

2. How many MOLES of fluorine are present in  of boron trifluoride? moles of fluorine.​

Explanation:

The molecular formula of boron trifluoride is BF_3.

So, one mole of boron trifluoride has one mole of boron atoms.

1. The number of boron atoms in 2.20 moles of boron trifluoride is 2.20 moles.

The number of atoms in 2.20 moles of boron is:

One mole of boron has ---- 6.023x10^2^3 atoms.

Then, 2.20 moles of boron has

-=2.20 mol. x 6.023 x 10^2^3 atoms /1 mol\\=13.25x10^2^3 atoms

2. Calculate the number of moles of BF3 in 5.35*1022 molecules.

(5.35x10^2^2 molecules/6.023x10^2^3)x 1mol\\=0.0888mol

One mole of boron trifluoride has three moles of fluorine atoms.

Hence, 0.0888moles of BF3 has 3x0.0888mol of fluorine atoms.

=0.266mol of fluorine atoms.

5 0
3 years ago
Use numbers to indicate the order of the steps in the titration process.
Snowcat [4.5K]

Answer:

7

5

1

8

3

6

2

4

just took on ed2020, good luck

7 0
3 years ago
Read 2 more answers
How to know the elements amount of charge please give me example​
asambeis [7]

Answer:

There are four ways to find the charge of an element:

Use the periodic table. The usual charge of an element is common to its group. ...

Use a chart. ...

For a single atom, the charge is the number of protons minus the number of electrons.

Find the charge by balancing charge in a compound

3 0
3 years ago
When atoms combine, the force of attraction that holds them together is a(
ziro4ka [17]
Electrostatic, meaning the attraction from one's positive nucleus is to the negative electrons of the other atom and vis versa.
3 0
4 years ago
Energy release is to condensation as energy input is to _________.
melamori03 [73]

Answer:

sublimation

Explanation:

the other choices release energy

7 0
3 years ago
Read 2 more answers
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