3 years ago

What procedure could a student use to examine an intensive property of a rectangular block of wood

1 answer:

8 0

An intensive property does not change when you take away some of the sample. The procedures that a student could use to examine the intensive property of a rectangular block of wood are the hardness, color, density and molecular weight.

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Which formula contains two non- metals? BaO NaBr KI Si O2

Yakvenalex [24]

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3 years ago

How do you know if a reaction is endothermic

Karo-lina-s [1.5K]

If the temperature rises in a reaction. Exothermic is if it loses heat.

Have a nice day, brainliest would be fantastic.

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3 years ago

Does the following compound contain a polyatomic ion? Na2SO4 Yes No

seropon [69]

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2 years ago

A certain chemical reaction releases 31.0 kj/g of heat for each gram of reactant consumed. How can you calculate what mass of re

Aleksandr-060686 [28]

Answer:

See explanation.

Explanation:

Hello!

In this case, since we know the heat of reaction per gram of reactant and we should know the total energy of reaction, but it is not there, we are going to assume it is 1200 J as usual in these problems, so you can change it to whatever your given heat is.

In such a way, we set up the math as shown below:

$m= 1200J*\frac{1kJ}{1000J}*\frac{1g}{31.0kJ}$

Which results:

$m=0.0387g$

Best regards!

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3 years ago