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Annette [7]
3 years ago
15

Balancing equations I need help asap for this please

Chemistry
2 answers:
mash [69]3 years ago
8 0
7) 1, 2, 1
8) 2, 2, 2, 2
9) 1, 3, 2
10) 2, 3, 1
11) 2, 1, 2, 3
12) 2, 2, 2, 1
13) 2, 2, 3

I'm 100% sure that I got number 13 wrong, I will still try to do it if I get it I'll comment it..... the other ones are right
Nookie1986 [14]3 years ago
7 0
No 8) one mole at all side.
no 9)one mole at N2 and three mole at H2 to get two mole of NH3.
no 10) four mole of Al and three mole of O2 to get two mole of Al2O3.
no 12) two mole of Na and two mole of H2O to get two mole of NaOH and one mole of H2.
no 13) one mole of H2SO4 and two mole of NaOH to get two mole of H2O.

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If one mole of na3po4·3h2o is heated extensively, how many moles of water are released?
Aleks04 [339]

When one mole of Na3PO4.3H2O is heated extensively, three moles of water are released.

The water molecules in Na3PO4.3H2O are called molecules of water of crystallization. These molecules are not covalently bonded to the Na3PO4 molecule. They are only loosely attached to the substance.

Strong heating will drive away these molecules of water of crystallization to give three moles of water in the product.

Hence, when one mole of Na3PO4.3H2O is heated extensively, three moles of water are released.

Learn more: brainly.com/question/14252791

4 0
2 years ago
A dental assistant is preparing to use a chemical that has a number 2 in a blue triangle on the chemical label. Before using the
Effectus [21]

Labels must clearly identify the chemical and include information on its hazards, plus instructions and information on its safe storage, handling, use, and disposal.

What does the information on the chemical label indicate?

The chemical label indicates the following information.

Product Identifier: The method used to identify the chemical (in the ingredient disclosure). On the label, include the complete chemical name or number that is used for the hazardous product. Both the label and SDS must have the same information. Abbreviations for chemicals are not accepted.

Signal Words: Assigned to a GHS hazard class and category, "Danger" or "Warning" are used to underline hazards and show the relative level of severity of the hazard.

Danger Statements: Typical expressions that are associated with a hazard class and category and that define the hazard's characteristics. On a label, there must be mention of every danger that applies.

Precautionary Statements: A term that describes actions that should be performed to reduce or eliminate negative effects brought on by exposure to or inappropriate storage of a substance.

Symbols (hazard pictograms): Convey information about environmental, physical, and health hazards that are categorized and allocated to a GHS hazard class.

Learn more about the chemical label here:

brainly.com/question/26092818

#SPJ4

5 0
2 years ago
What is the name of CF4?.
Mumz [18]

Answer:

please mark me as brainlest

Explanation:

carbon fluoride is the answers

8 0
2 years ago
Read 2 more answers
I think it’s b but I’m not sure
suter [353]
Yes that’s correct it is B
4 0
3 years ago
Read 2 more answers
What is the hybridization of carbon in nco-?
Svet_ta [14]

First let us see what kind of bonds are formed in the compound. By drawing the structure, we see that the kind of bonds are:

N =- triple bond -= C – O

<span>So there is only single bond between C and O therefore the hybridization of C is sp.</span>

4 0
3 years ago
Read 2 more answers
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