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abruzzese [7]
3 years ago
7

Which of the following is a balanced chemical equation?

Chemistry
1 answer:
guapka [62]3 years ago
7 0

Answer:

number 3 is balanced

Explanation:

left side equal right side

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Here's some 6th-grade science question XD
Trava [24]

Answer:

Spring summer  fall.

Explanation:

As a general rule, if you're in the Northern Hemisphere, look towards the southern skies to see the galactic core. This can be southeast (Spring), due south (Summer), or southwest (Fall) depending on the time of year. As mentioned above, Sagittarius is found nearest the galactic core.

3 0
3 years ago
How do you round 3795 to THREE sig figs?
Margaret [11]

Answer:

The answer is 380.

Explanation:

Significant figures:

All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

Leading zeros are not consider as a significant figures. e.g. 0.06 in this number only one significant figure present which is 6.

Zero between the non zero digits is consider significant like 108 consist of three significant figures.

The zeros at the right side e.g 6300 are also significant. There are four significant figures are present.

How to round the value to three significant figures.

First of all we will place the vertical line after 3rd digit.

379/5

Now we will look at the 4th digit. If it is five or more than five then one is added to 3rd digit. If it is less than five the 3rd digit remain same. In given value 4th digit is 5 thus one is added into 9 and the value become 380.

The answer is 380.

6 0
3 years ago
Hey I'm Chloe can you Help me, Thank you :)<br> How does photosynthesis use solar energy?
harina [27]
When a plant goes through photosynthesis, it uses light energy and converts it into chemical energy
4 0
3 years ago
Read 2 more answers
An ion is formed when an atom___?
KATRIN_1 [288]

Answer:

gain or loses electrons.

Explanation:

Because the atom need to be balanced.

5 0
3 years ago
In the disproportionation reaction CI2 + H2Omc021-1.jpgHCIO + HCI, what describes the oxidation states of the substance Cl?
Sophie [7]
<span>Reaction: CI2 + H2O    ---->  HCIO + HCI

Oxidations states:

The oxitation state of Cl2 = 0, because the oxidation state of an atom alone or a molucule with one kind of atom is always 0.

The oxidation state of Cl in HClO is +1 because the oxidation state of H is + 1, the oxidation state of O is - 2, and the molecule is neutral, so  +1 + 1 - 2 = 0

The oxidation state of Cl in HCl is - 1, because the oxidation state of H is +1 and the molecule is neutral, so - 1 + 1 = 0.

Also, you shall remember that when an atom increases its oxidation state is is oxidized and when an atoms reduces its oxidations state it is reduced.

With that you conclude that the right option is the last statement: </span>Cl has an oxidation number of 0 in Cl2. It is then reduced to CI- with an oxidation number of –1 in HCl and is oxidized to Cl+ with an oxidation number +1 in HClO.
8 0
4 years ago
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