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timurjin [86]
3 years ago
10

Can somebody pls post the spectrum science grade 7 workbook answer key? tysm

Chemistry
1 answer:
kkurt [141]3 years ago
5 0

                                                                                                                                                    no no no no no n on o no n on o nnononon  no no no no

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Is PCl3 ionic or covalent?
mote1985 [20]

Answer:

covalent

Explanation:

P and Cl are non-metals, so bonds between P and Cl are covalent.

8 0
4 years ago
Identify the spectator ions in the following molecular equation.
SOVA2 [1]
We can rewrite the equation KBr(aq) + AgNO3(aq) → AgBr(s) + KNO3(aq) into its net ionic equation into
 K+ + Br- + Ag + + NO3-  = AgBr + K + NO3-only aqueous solutions can dissociate. Spectator ions are present in both sides, hence these are K+ and NO3-. THe rules of assigning oxidation numbers is to identify the number of valence electrons of elements and may be arbitrary depending on the charge of the molecule. 
3 0
4 years ago
Which of the following can be classified only as a thermoplastic polymer? A) thermosetting polymers B) addition polymers C) line
cluponka [151]

Answer:

A thermoplastic is a polymer that becomes pliable or moldable above a specific temperature and returns to a solid state upon cooling. These are the linear or slightly branched long chain molecules. For examples, PVC, polystyrene, nylon,polyethylene etc.

Explanation:

5 0
3 years ago
If a gas occupies 733 mL at 10.0 °C, at what temperature will it occupy 950 mL, assuming the pressure of the gas remains constan
raketka [301]
This is an example of Charles’ Law problems, the basic equation is: V1/T1 = V2/T2. One vital thing to recall for all gas law problems is that the temperature must be in Kelvin (not Celsius). 
So our given is 10.0 C = 283 K. So 
V1/T1 = V2/T2 
733/283 = 950/T2 

T2 = 367 K 
5 0
4 years ago
How many molecules are found in 3.4 moles of carbon dioxide?
madam [21]

Answer:

One mole of anything has 6.023 x 10^23 molecules.

That would mean 3.4moles of CO2 have 6.023x 10^23 times 3.0.

So that would be2.04782×10^24 molecules in 3.0 moles of C02.

8 0
3 years ago
Read 2 more answers
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