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Leya [2.2K]
3 years ago
13

Can you please explain how i can work through these problems?

Mathematics
1 answer:
pshichka [43]3 years ago
3 0
Did you add a photo? I cant see one
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Find the empirical formula of the compound containing 2.4 gram of carbon, 6.4 gram of oxygen and 0.2 gram of hydrogen ​
Usimov [2.4K]

Answer:

Empirical formula= COOH

Step-by-step explanation:

Molecular mass of the elements

Carbon= 12

Oxygen= 16

Hydrogen= 1

We divide the elements each with their molecular formula

Carbon= 2.4/12

Carbon= 0.2

Oxygen= 6.4/16

Oxygen= 0.4

Hydrogen= 0.2/1

Hydrogen= 0.2

Now we divide with the smallest result which is 0.2

Carbon= 0.2/0.2

Carbon = 1

Oxygen= 0.4/0.2

Oxygen= 2

Hydrogen= 0.2/0.2

Hydrogen= 1

So we have

Carbon 1, oxygen 2, hydrogen 1

Empirical formula= COOH

4 0
3 years ago
Which equation is shown on the graph?    
Nostrana [21]
y=mx+b\\\\A(0;\ 2);\ B(-2;\ 0)\\\\for\ x=2\to y=2\\\\substitute:m\cdot0+b=2\to b=2\\\\y=mx+2\\\\for\ x=-2\to y=0\\\\substitute:-2m+2=0\to-2m=-2\ \ \ /:(-2)\to m=1\\\\Answer:y=x+2\ (B)
4 0
3 years ago
What is the proportion you used to solve: what number is 28% of 50
UNO [17]

Answer:

is the answer 14

Step-by-step explanation:

If you are using a calculator, simply enter 28÷100×50 which will give you 14 as the answer.

hope it helps

mark me brainliest pls

4 0
2 years ago
A storm moves at a rate of 8 miles per hour. It is 200 miles away from Freeport and headed directly for this town. The equation
Eduardwww [97]

Pls see answer below.

Step-by-step explanation:

In this case, our slope is -8. This means that every hour, the storm is getting closer to the town by 8 miles per hour.

Our y-intercept is 200, which means that its' initial position is 200 miles away from the town.

Hope this helped.

7 0
3 years ago
ꞮɴᴇQᴜᴀʟɪᴛʏ Qᴜᴇꜱᴛɪᴏɴ, ᴘʟᴇᴀꜱᴇ ʜᴇʟᴘ ᴍᴇ ᴏᴜᴛ
zaharov [31]
B I have done this before
6 0
3 years ago
Read 2 more answers
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