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Goshia [24]
3 years ago
15

Choose all the answers that apply.

Chemistry
1 answer:
9966 [12]3 years ago
6 0
The answer would be B 
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Which substance is a mixture? A. table salt B. gasoline C. aluminium D. carbon dioxide​
IRISSAK [1]
B.) Gasoline. Gasoline is a complex blend of compounds made from petroleum. There are various grades of gasoline. Thus it is a mixture
6 0
3 years ago
Heating devices can be made by passing an electric current through a conductor of:
olchik [2.2K]

Answer:

High resistance

Low conductivity

Explanation:

The more resistance (aka less conductivity) there is, the more the energy is turned into heat than simply  passing through the object.

6 0
3 years ago
A girl has a weight of 450 N and her feet have a total area of 300Cm2
snow_tiger [21]

Answer:

15000N/m²

Explanation:

Given parameters:

Force exerted by the girl  = 450N

Area  = 300cm²

Unknown:

Pressure exerted by her feet  =?

Solution:

Pressure is the force per unit area on a body;

    Pressure  = \frac{force }{area}

We need to convert the given area to m²;

        10000cm²   =  1m²

        300cm²  = \frac{300}{10000}   = 0.03m²

Pressure = \frac{450}{0.03}   = 15000N/m²

8 0
3 years ago
How does the circultatory system and muscular system work together?
grin007 [14]

Answer:

d.

Explanation:

i was think b at first but that doesnt really explain how it gets to the circulatory system so d because without the the regulation of the heart rate and oxgen rich blood the muscular system can do absolutely nothing

7 0
3 years ago
How many electrons does calcian have to gain or lose to have 8 valence electrons
skelet666 [1.2K]

Answer:

two electrons

Explanation:

Calcium atoms will lose two electrons in order to achieve the noble gas configuration of argon.

8 0
2 years ago
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