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slamgirl [31]
3 years ago
7

5. If all the particles in a material are made up of

Chemistry
1 answer:
mel-nik [20]3 years ago
4 0

If all the particles in a material are made up of

several smaller particles, and every larger particle

is identical, is the material a pure substance or

not? Explain your reasoning.

A pure substance is something like a compound and element. This material made of several particles which seem to be two different particles, I believe, is a mixture. So, it is not a pure substance mixtures are made up of more than one particle while compounds (In a fixed ratio, the fusion of two or more than two atoms) and elements are made up of one molecule essentially.

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6.
omeli [17]

Answer:

gains two electron!

Explanation:

When a barium atom forms its most common ion, it gains two electron!

7 0
3 years ago
Hydrochloric acid is found in swimming pools and in your stomach.How does it function in each situation?
DochEvi [55]
HCL in swimming pools helps kill the bacteria in them from other people while HCL in your stomach helps dissolve the food you eat
6 0
4 years ago
Molecular weight of PbCl2 = 278 g/mole Mass of beaker + PbCl2 = 62.19 g Mass of beaker = 57.77 g Mass of PbCl2 per 100 mL = g Mo
levacccp [35]
PbCl2--->Pb2+  +  2Cl-

The  mass   of  PbCl2   is   =mass   of  the  beaker+Pbcl2  minus   mass  of  the  beaker
that  is  62.19-57.77g=  4.42grams

moles  of PbCl2=  4.42g/278g/m0l = 0.0159moles

concentration  of  (Pb2+)
since  mole  ratio  of  PbCl2  to  Pb2+  is   1:1  therefore  the  moles  of  Pb2+  is  also  0.0159moles
concentration  =0.0159/100 x1000=0.159M

concentration  of  CI-  is  two  time  that  of  Pb2+  from  the  equation  above  therefore  concentration   of  Cl-  =  0.159 x2  =0.318M
7 0
3 years ago
If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be
Slav-nsk [51]
<span>If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be
</span>acceleration

5 0
4 years ago
Read 2 more answers
Show work plzzz
tekilochka [14]

Answer:

1= Volume

= Length x breath x height

= 13.90 x 2.9 x 0.081

=3.26511

2= Density = Mass ÷ volume

= 11.3 ÷ 3.26511

= 3.461 (3d.p)

idk the rest because you haven't shown a picture of the rest

7 0
3 years ago
Read 2 more answers
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