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3 years ago

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A resistor is placed in a circuit. The voltage of the circuit is changed and the current is measured. The graph seen here shows

the data that was collected. Determine the resistance of the resistor in this circuit.

1 answer:

Arturiano [62]3 years ago

6 0

Answer- 2 Ohms

explain- i took the test!

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Estradiol is a female sexual hormone that causes maturation and maintenance of the female reproductive system. Elemental analysi

Ipatiy [6.2K]

Answer:

The molecular formula of estradiol is: $C_{18}H_{24}O_2$ .

Explanation:

Molar mass of of estradiol = M= 272.37 g/mol

Let the molecular formula of estradiol be $C_xH_yO_z$

Percentage of an element in a compound:

$\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100$

Percentage of carbon in estradiol :

$\frac{x\times 12 g/mol}{272.37 g/mol}\times 100=79.37\%$

x = 18.0

Percentage of hydrogen in estradiol :

$\frac{y\times 1g/mol}{272.37 g/mol}\times 100=8.88\%$

y = 24.2 ≈ 24

Percentage of oxygen in estradiol :

$\frac{z\times 16 g/mol}{272.37 g/mol}\times 100=11.75\%$

z = 2

The molecular formula of estradiol is: $C_xH_yO_z:C_{18}H_{24}O_2$

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3 years ago

In a constant‑pressure calorimeter, 70.0 mL of 0.350 M Ba(OH)2 was added to 70.0 mL of 0.700 M HCl. The reaction caused the temp

asambeis [7]

Answer:

ΔH = 57 Kj/mole H₂O

Explanation:

6 0

3 years ago

Read 2 more answers

HEY Plzzzzzzzzzzz HELP ILL GIVE BRAINLIEST ASAPPPPPPPPPPP

vladimir1956 [14]

1. Equal
2. Properties
3. Heat
4. Reverse

3 0

2 years ago

(C) A metal 'M' has electronic configuration 2, 8, 2. Find the formula of its

borishaifa [10]

M = 2 . 8 . 2

Valence Electron of M = 2

M ==> M⁺² + 2 e⁻

a. M⁺² + OH⁻ ==> M(OH)₂

b. M⁺² + PO₄⁻³ ==> M₃(PO₄)₂

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3 years ago

Please help i will give 20 points

NNADVOKAT [17]

Answer:

It's A., thats conduction and its a heat transfer

Explanation:

6 0

2 years ago