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storchak [24]
3 years ago
13

Which of the following substances feels slippery and will not react with metals? *

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
4 0

Answer:

my answer is

H2O that is mine

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How are sea slugs able to make their own food like green algae?
Nadusha1986 [10]

Answer: my answer I’d D! I’m sorry if this did not help you

Explanation: =)

3 0
3 years ago
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How many joules of heat is lost when a 64 g piece of copper cools from 375 oC to 26 oC? The specific heat of copper is 0.38 J/go
Svetlanka [38]

Answer: 8500 J lost or -8500 J

Explanation:

q=cmt

t=375-26

t=349

q=0.38(64)(349)

q=8487.68 J

Answer must have 2 sig figs, which means it rounds to 8500 J.

7 0
3 years ago
How many atoms are in 187 g of Calcium?
N76 [4]
Atomic mass Calcium ( Ca) = 40.078 u.m.a

40.078 g --------------- 6.02x10²³ atoms
187 g ------------------- ??

187 x ( 6.02x10²³) / 40.078 =

1.125x10²⁶ / 40.078 = 2.808x10²⁴ atoms

hope this helps!




4 0
3 years ago
Which way would CCI2F2 orient in an electric field?
ArbitrLikvidat [17]

Answer:

See explanation

Explanation:

In looking at molecules to determine whether they are polar or not we have to look at two things basically;

i) presence of polar bonds

ii) geometry of the molecule

Now, we know that CCI2F2 is a tetrahedral molecule, but the molecule is not symmetrical. It has four polar bonds that are not all the same hence the molecule is polar.

In an electric field, polar molecules orient themselves in such a way that  the positive ends of the molecule are being attracted to the negative plate while the negative ends of the molecules are attracted to the positive plate.

So the positive ends of CCI2F2  are oriented towards the negative plate of the field while the negative ends of CCI2F2 are oriented towards the positive ends of the field.

3 0
2 years ago
Please answer fast, shouldn't take long to do ^-^ (will give brainliest)
Anna [14]

Answer:

B

Explanation:

5 0
3 years ago
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