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AveGali [126]
3 years ago
11

Which of the following series of scientific steps is most likely in the correct order?

Chemistry
2 answers:
Kay [80]3 years ago
6 0

Answer:

C

Explanation: you have to observe to have an educated guess about something you test it

Leni [432]3 years ago
4 0
Observation, hypothesis, experiment is the correct answer
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Osmium is one of the densest elements known, what is its density if 2.72 g has a volume of 0.121 cm3?
AnnZ [28]
Mass / volume = density
2.72g/0.121mL = 22.5g/mL

1cm3 = 1mL
7 0
3 years ago
Read 2 more answers
Volume of Water -
miss Akunina [59]

Answer:

3.8 g/mL

Explanation:

From the question given above, the following data were obtained:

Volume of Water = 60 mL

Volume of Water + Object = 73.5 mL

Mass of object = 51.3 g

Density of object =?

Next, we shall determine the volume of the object. This can be obtained as follow:

Volume of Water = 60 mL

Volume of Water + Object = 73.5 mL

Volume of object =?

Volume of object = (Volume of Water + Object) – (Volume of Water)

Volume of object = 73.5 – 60

Volume of object = 13.5 mL

Finally, we shall determine the density of the object as illustrated below:

Volume of object = 13.5 mL

Mass of object = 51.3 g

Density of object =?

Density = mass /volume

Density of object = 51.3 /13.5

Density of object = 3.8 g/mL

Thus, the density of the object is 3.8 g/mL

5 0
3 years ago
C. A 75 lb (34 kg) boy falls out of a tree from a height of 10 ft (3 m). (3 points)
KatRina [158]

(I) kinetic energy of the boy when he hits the ground =potential energy

I. e ½mv²=mgh where g is 10ms-²

m=34kg, g=10ms² , h=3m

=34×10×3

=1020j

(i i) v²=u²+2gh

v²=0²+2×10×3

= 60

v=sqrt of 60

7 0
2 years ago
Another metal phosphate is cobalt phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net io
ryzh [129]
We are given with
Cobalt phosphate - CoPO4

We are asked for the net ionic equation for the phosphate dissolving in H3O+

The net ionic equation is
CoPO4 (s) + H3O+ (aq) ----->  HPO42- (aq) + Co3+ (aq) + H2O *(l)
8 0
3 years ago
Read 2 more answers
(02.03 MC)
Olegator [25]
3 because of the thing it’s trying to say
7 0
3 years ago
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