3 years ago

What is the name of this compound?

Chemistry

2 answers:

Mashcka [7]3 years ago

3 0

Answer:

B. ethylamine.

Explanation:

Since the compound contains NH₂, it is an amine compound.

The alkyl group C₂H₅- contains 2 C atoms (ethyl group).

So, the compound is ethylamine.

KonstantinChe [14]3 years ago

3 0

Answer:

B: ethylamine

Explanation:

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Marina CMI [18]

X $H_{3}$
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Answer: The valency of X is -3. The valency of Y is 6

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3 years ago

2. How much heat is released when 432g of water cools down from 710C to 180C?

nadya68 [22]

The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

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Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

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3 years ago

How many moles of magnesium, Mg, are there in 4.75 grams of magnesium?

Nina [5.8K]

Molar mass Mg = 24.3 g/mol

1 mole mg ------------ 24.3 g
?? moles mg --------- 4.75 g

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hope this helps!

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3 years ago

How many doubtful digit(s) is/are allowed in any measured quantity?

Mnenie [13.5K]

Answer:

zero

Explanation:

I I think one should be so accurate with measurements and experiments

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Question 1 of 10 What is molarity a measurement of? O A. The volume of liquid containing a dissolved substance B. The grams of a

Nuetrik [128]

Answer:

Explanation:

D. The number of moles of a dissolved substance

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