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poizon [28]
4 years ago
5

Which example is classified as a body fossil?

Chemistry
2 answers:
V125BC [204]4 years ago
5 0

Answer:

individual ancient shark vertebra

Explanation:

it ask for a body fossil and that is the only body fossil

Tpy6a [65]4 years ago
4 0

Answer:

ancaint shark  vertebra

Explanation:

You might be interested in
A)
Andrews [41]

sorry what us this i don't get it

7 0
3 years ago
How many atoms of nickel can be found in a 1.00 g sample?
atroni [7]
The atoms of a substance can be determined by dividing the given mass of the substance by the molar mass. This results to moles of the substance. Then we multiply by the Avogadro's number. In this case, we divide 1 g by 58. 69 g/ mol and multiply by 6.022 x10^23 atoms / mole. The answer is 1.03 x10^22 atoms
7 0
4 years ago
Fake answers are reported and your account will be banned
Leona [35]

Answer:

BRAINLIEST?

Explanation:

Ammonia is a typical weak base. Ammonia itself obviously doesn't contain hydroxide ions, but it reacts with water to produce ammonium ions and hydroxide ions. My findings said that ammonia is a weak base, potassium hydroxide is a strong base, vinegar is a weak acid and ethyl alcohol is a weak acid.

Vinegar and ethyl alcohol are eliminated as they are acids. The question is on bases.... Potassium hydroxide is a strong base. So we are left with ammonia, being a weak base.

A is your answer

8 0
3 years ago
Read 2 more answers
A diode has IS = 10−17 A and n = 1.05. (a) What is the diode voltage if the diode current is 70 μA? (b) What is the diode curren
liq [111]

Answer:

(a) The diode voltage,  V_D =  0.776 V

(b) The diode current, I_D = 3.81 x 10⁻²⁰ A

Explanation:

Given;

saturation current in diode, I_s = 10⁻¹⁷ A

nonideality factor, n = 1.05

(a) the diode voltage

Given diode current, I_D = 70 μA = 7 x 10⁻⁶ A

Diode voltage is calculated as;

V_D = nV_Tln(1+ \frac{I_D}{I_S} )

Where;

V_T is thermal voltage at 25°C = 0.025

V_D = 1.05 * 0.025 ln(1+ \frac{70*10^{-6}}{1*10^{-17}})\\\\V_D = 0.02625ln(1+ 7*10^{12})\\\\V_D = 0.776 \ V

b) the diode current for VD = 0.1 mV

V_D = nV_Tln(1 +\frac{I_D}{I_S} )\\\\ln(1 +\frac{I_D}{I_S} ) = \frac{V_D}{nV_T} \\\\ln(1 +\frac{I_D}{I_S} ) = \frac{0.1*10^{-3}}{1.05*0.025} \\\\ln(1 +\frac{I_D}{I_S} ) = 0.00381\\\\1 +\frac{I_D}{I_S}  = e^{0.00381}\\\\1+ \frac{I_D}{I_S}= 1.00381\\\\ \frac{I_D}{I_S}=1.00381 - 1\\\\ \frac{I_D}{I_S}= 0.00381\\\\I_D = 0.00381(I_S)\\\\I_D = 0.00381(10^{-17})\\\\I_D = 3.81*10^{-20} \ A

6 0
3 years ago
Do you think people could breed goats to produce spider silk proteins?
Aleksandr-060686 [28]

Answer:

Goats that produce spider silk protein in their milk could enable researchers to collect large quantities of the silk.

Explanation:YES

4 0
3 years ago
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