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Tpy6a [65]
3 years ago
7

Given that the density of iron is 7.9 g/cm3, what would be the volume of a 15.8 g piece of iron

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

2cm^3

Explanation:

Use the density triangle: D=MxV

Switch for variables, V=M/D

Plug in numbers, 15.8g/7.9g/cm^3=2cm^3

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Name an alkene that would yield the alcohol above on hydration. (Submit a single name even if there is more than one correct ans
insens350 [35]

Answer:

Enzyme ? ...............

8 0
3 years ago
Identify each of the following sets of quantum numbers as allowed or not allowed in the hydrogen atom.
Westkost [7]

Answer:

See explanation.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to firstly recall the electron configuration of hydrogen:

1s^1

To realize that the principal quantum number is 1, the angular is 0 as well as the magnetic one; therefore we infer that all the given n's are not allowed, just l=0 is allowed as well as ml=0 yet the rest, are not allowed.

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5 0
2 years ago
Two hydraulic cylinders are connected. If the diameter of one piston is twice the other, the how does the pressure experienced b
Aneli [31]

Answer:

They experience the same pressure

Explanation:

To answer this question, we recall Pascal's, Law Pascal's law states that  an increase in pressure at a point in a confined cylinder containing a fluid, there is also an equal increase at all other points in that cylinder.

According to Pascal's law the pressure if the pressure expereienced by the larger diameter piston increases, the pressure experienced by the smaller diameter piston also increases by the same amount

However considering that pressure = Force/area F1/A1 =F2/A2

thus where A1 = πD²÷4 and A2 = πD²÷ 16 we have

we have F1×4/πD² = F2×16/πD² or F1 = 4× F2

They experience the same pressure but the larger cylinder delivers four times the force transmitted from he outside to the smaller cylinder

7 0
3 years ago
An inflatable swimming pool held 1,000 gallons of water. It sprang a leak, and 5% of the water leaked out of the pool.
iVinArrow [24]

Answer:

50

Explanation:

If you want a percent as a decimal so you can divide you must make it a decimal for example in your case it would be like this, 0.05, then all you do is divide 1,000 by 0.05

8 0
2 years ago
Which polyatomic ion is found in the compound represented by the formula NaHCO3?
stiv31 [10]

Answer: The correct option is 2.

Explanation: Polyatomic ions are defined as the ions in which two or more elements are covalently bonded to act as a single unit. They always carry some charge.

Examples of polyatomic ions are: OH^- known as hydroxide ion, SO_4^{2-} known as sulfate ion

We are given a compound NaHCO_3 having 2 ions which are Na^+ and HCO_3^-. these ions are named as sodium ions and hydrogen carbonate ions.

Therefore, the correct option is 2.

8 0
3 years ago
Read 2 more answers
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