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Veseljchak [2.6K]
2 years ago
6

WILL GIVE BRAINLIEST

Mathematics
2 answers:
butalik [34]2 years ago
7 0

Answer:

B

Step-by-step explanation:

Mumz [18]2 years ago
6 0
The answer is -2 so it’s the second one :)
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How many moles of NH3 will be produced if 2 moles of N2 reacts with excess H2 gas?
skad [1K]

Answer:

2 moles of N₂ will produce 4 moles of NH₃

Step-by-step explanation:

Equation of reaction

N₂ + 3H₂ → 2NH₃

The process above is the Born-Harber method of producing ammonia NH₃ industrially.

From the equation of reaction,

1 moles of N₂ will produce 2 moles of NH₃

1 moles N₂ = 2 moles NH₃

2 moles of N₂ = x moles of NH₃

x = (2*2) / 1 = 4moles of NH₃

2 moles of N₂ will produce 4 moles of NH₃

5 0
3 years ago
Brainliest! please help <3
Viefleur [7K]

Answer: The answer is B

Step-by-step explanation:

7 0
3 years ago
A collection of quarters and dimes is worth $14.90. There are 80 coins in all. Find how many of each there are in the collection
sashaice [31]

The trick here is to relate the NUMBER of coins to each other in one equation, and then the VALUE of the coins in another equation. If I have 1 dime, that 1 dime is worth 10 cents. The number of dimes is obviously not equal to the value. Let's call quarters q and dimes d. The number of these 2 types of coins added together is 80 coins. So q + d = 80. Now, we know that quarters are worth .25 and dimes are worth .1, so we express a quarter's worth as .25q; we express a dime's worth as .1d. The value of the coins we have is 14.90. So that equation is .25q + .1d = 14.90. Let's solve the first equation for q. q = 80 - d. We can now use that as a substitution for q into the second equation, giving us an equation with only 1 unknown, d. .25(80-d) + .1d = 14.90. Distributing through the parenthesis we have 20 - .25d + .1d = 14.90. Combining like terms gives us - .15d = - 5.1. We will divide both sides by - .15 to get that the number of dimes is 34. If we had a total of 80 coins, then the number of quarters is 80 - 34, which is 46. 46 quarters and 34 dimes

7 0
4 years ago
Jackie Robinson was MOST notable for
WITCHER [35]

Answer:

C

Step-by-step explanation:

4 0
4 years ago
The first number in a multiplication problem is called the
pochemuha
Numbers in multiplication are called factors. In algebra, the first number is called coefficient (e.g. 2 in 2x). It is also called multiplier.
6 0
4 years ago
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