2 years ago

Which of the following chemical equations violates the law of conservation of mass?

Chemistry

2 answers:

KiRa [710]2 years ago

7 0

The right answer is C, I just took this test, and this is correct

Aleksandr-060686 [28]2 years ago

6 0

Choice C. There is one sulfate group in the reactants but two in the products. Also, there are 4 nitrate groups in the reactants but only two in the products.

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Someone please answer i’ll give you brainly.

lina2011 [118]

Let's hope she didn't watch it without me or i will never be speaking to her again :))

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2 years ago

3. Hydrogen reacts with nitrogen to produce ammonia according to the equation:

lys-0071 [83]

Mass of ammonia produced : 121.38 g

<h3>Further explanation</h3>

Given

Reaction

3H₂(g) + N₂(g) ⇒ 2NH₃(g)

100g of N₂

Required

Ammonia produced

Solution

mol of N₂ :

$\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{100}{28}\\\\mol=3.57$

From the equation, mol ratio of N₂ and NH₃ = 1 : 2, so mol NH₃ :

$\tt \dfrac{2}{1}\times 3.57=7.14~moles$

mass of NH₃(MW=17 g/mol) :

$\tt mass=mol\times MW\\\\mass=7.14\times 17\\\\mass=121.38~g$

8 0

2 years ago

Which statement is an opinion?

Zepler [3.9K]

C. or A. Is your best bet

8 0

2 years ago

Read 2 more answers

One sugar produced by photosynthesis is_________.

iVinArrow [24]

Cellulose is the answer.

7 0

2 years ago

Read 2 more answers

You are running a lemonade stand with your friend. You prepared 10 liters of 0.7 molarity lemonade, but your friend did online r

mr Goodwill [35]

Answer:

add 7.5L of water

Explanation:

M1×V1=M2×V2

M is molarity, V is volume

0.7 × 10 = 0.4 × V2

V2= 17.5L

vol. of water to add= 17.5 - 10 = 7.5L

7 0

2 years ago