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notka56 [123]
3 years ago
5

PLEASE PLEASE HELP THIS IS SCIENCE !! ILL MARK U BRAINLIEST IF UR CORRECT

Chemistry
2 answers:
likoan [24]3 years ago
8 0

Answer:

Explanation:

question 14 is a

question 15 is c

questoin 13 is d

anyanavicka [17]3 years ago
3 0

Answer:

Q 14 Deceleration

Explanation:

You are slowing down

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The moon is 250,000 miles away. How many inches is it from earth?
Lapatulllka [165]

Answer:

1.584e10 = 15,840,000,000,000

Explanation:

250,000 miles

multiply the length value by 63360

25e4 x 63360

= 1.584e10

3 0
3 years ago
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Can you help me plz I think it’s b or c
Anettt [7]

i think its C pls dont get mad if it is wrong

4 0
3 years ago
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Consider the potassium permanganate reaction again.
Rus_ich [418]
Hey there !

Mole ratio :

<span>2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2

2 moles KMnO4 ----------------- 8 moles H2O
3.45 moles KMnO4 ------------- (moles H2O )

Moles H2O = 3.45 * 8 / 2

Moles H2O = 27.6 / 2

 = 13.8 moles of H2O

</span>The option that was given is wrong , <span>You're right.</span>
6 0
3 years ago
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Are the activities exothermic or endothermic?​
Alexandra [31]

Answer:

The first 5 are exothermic reaction because heat is in product means heat is evolved or given out.

And last no reaction shows that heat is required so last reaction is endothermic reaction.

Explanation:

And heat is evolved in exothermic reaction and heat is absorbed in endo thermic reaction

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What is the product for MgBr2+ Cl2
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