3 years ago

When a relationship is specified, related records will be displayed in a form's

Chemistry

2 answers:

ryzh [129]3 years ago

7 0

Answer: d

Explanation:

marusya05 [52]3 years ago

6 0

The answer should be d

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Answer:

Erythrocytes

Erythrocytes do not contain a nucleus. This would make answer choice "A" correct. Erythrocytes are red blood cells and these cells differ from the other cells of the body because of the absence of the nucleus. All the other cells noted have nuclei.

Explanation:

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3 years ago

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How many grams are 1.20 x 1025 molecules of calcium iodide?

jeka57 [31]

Answer:

1230

Explanation:

1.20×1025=1230 is your answer

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The ideal gas law tends to become inaccurate when:

Maslowich

Answer:yes

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3 years ago

A 275 g sample of a metal requires 10.75 kJ to change its temperature from 21.2 oC to its melting temperature, 327.5 oC. What is

Vlada [557]

Answer:

$c=0.127\ J/g^{\circ} C$

Explanation:

Given that,

Mass of the sample, m = 275 g

It required 10.75 kJ of heat to change its temperature from 21.2 °C to its melting temperature, 327.5 °C.

We need to find the specific heat of the metal. The heat required by a metal sample is given by :

$Q=mc\Delta T$

c is specific heat of the metal

$c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{10.75\times 10^3\ J}{275\times (327.5 -21.2)}\\\\=0.127\ J/g^{\circ} C$

So, the specific heat of metal is $0.127\ J/g^{\circ} C$ .

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2 years ago