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Mazyrski [523]
3 years ago
8

What is the result when atoms combine in fixed ratios?

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

Chemical reaction

Explanation:

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Acids such as HNO3, or H2SO4, which contain oxygen,<br> hydrogen and other elements are called
timurjin [86]

Answer:

oxoacids

Explanation:

Acids such as HNO3, H2SO4, which contain oxygen, hydrogen, and other elements are called <em>oxoacids</em>

4 0
3 years ago
What mass of gold is produced when 24.4 a of current are passed through a gold solution for 46.0 min ?
solmaris [256]

To solve this problem, we make use of the Faraday’s law for Electrolysis. The formula is given as:

I t = m F / e

where the variables are,

I = current = 24.4 A

t = time = 46 min = 2760 s

m = mass produced = (unknown)

F = Faraday’s constant = 96500 C/equivalent

e = gram equivalent weight of gold

 

The gram equivalent weight is calculated by dividing the molar mass with the amount of charge produced per atom. Gold has charge of 3+ therefore the gram equivalent weight is:

e = (196.97 g/mol)(1 mol/3 equivalents) = 65.66 g/equivalents

 

Solving for the mass m:

m = e I t / F

m = (65.66 g) (24.4 A) (2760 s) / (96500 C)

m = 45.82 g

8 0
3 years ago
What is the maximum number of electrons allowed in the third energy level​
ValentinkaMS [17]

18 electrons allowed in the 3rd energy level

7 0
4 years ago
Read 2 more answers
A plane has a cruising speed of 100 miles per hour when there is no wind. At this speed, the plane flew 600 miles with the wind
alina1380 [7]
The solution for this problem is:
Let x = speed of wind

Speed of plane with the wind = x + 100

Speed of plane against the wind = 100 -x 

 We will be using the formula for distance which is (Rate)(Time), getting the formula for time would be distance/rate Time to travel 600 miles with the wind = Time to travel 400 miles against the wind 600/(x + 100) = 400/(100 - x)

 400(x + 100) = 600(100 - x)

 400x + 40000 = 60000 - 600x

 1000x = 20000

x = 20000/1000

 x = 20 mph
8 0
3 years ago
How much sodium bicarbonate to raise alkalinity in pool.
almond37 [142]

Answer:

A rule of thumb is that 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH is tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.

4 0
2 years ago
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