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3 years ago

Easy Chemistry/ Help

Chemistry

1 answer:

Sauron [17]3 years ago

4 0

I’m not really sure what the qn is asking for but if i’m not wrong it should be ‘1’ for each blank!

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Barium phosphide Ba3P2 BaP Ba3PO4

Novosadov [1.4K]

Answer:

It A(Ba3P2)

Explanation:

I took the test

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3 years ago

Two substances A and B, initially at different temperatures, are thermally isolated from their surroundings and allowed to come

Elden [556K]

Answer:

Explanation:

For solving this we need a heat balance

$Q_{a} = Q_{b}\\m_{a}*C_{a}*\Delta T_{a} = m_{b}*C_{b}*\Delta T_{b}$

By changing the corresponding relations, we have

$m_{a}*C_{a}*\Delta T_{a} = \frac{1}{2}m_{a}*4C_{a}*\Delta T_{b} \\\\\\$

By cancelling similar factor, we obtain

$\Delta T_{a} = 2 \Delta T_{b}\\\frac{\Delta T_{a}}{\Delta T_{b}} = 2\\$

Which means that the change of temperature in A is twice the change of B

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3 years ago

Hurry and Help for Brainlist

zalisa [80]

Ummm i think it’s solid

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3 years ago

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The efficiency is the number of times a machine multiplies the input force <br> true or false

OlgaM077 [116]

Answer:

may be...... false not sure

Explanation:

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3 years ago

The diagram shows genetic structures.

Lubov Fominskaja [6]

Answer:DNA

Explanation:I already do the test

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3 years ago

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