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PIT_PIT [208]
3 years ago
5

The density of a metal cube is 8 x103 kg/m3. Convert

Chemistry
1 answer:
Rom4ik [11]3 years ago
4 0

Answer:

Explanation:

[peirod4

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Help science periodic table
romanna [79]
All the answers are on the actual periodic table. You should never be told to remember it so I think this is a recourse you are allowed to look at whilst doing your homework lol :) all the answers are written on it hope it helps

3 0
2 years ago
Read 2 more answers
1. Mr. Brown weighs 670 newtons and he climbed a ladder that was 5 meters
ziro4ka [17]
Work = force*distance
Work = 670 * 5
Work = 3350 Nm
4 0
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!

7 0
3 years ago
3 The volume of a gas is 50.0 mL at 20.0 K. What will be the new
Damm [24]

Answer:

C. 4.00 K

Explanation:

We can solve this using Charles's Law of the ideal gas. The law describes that when the pressure is constant, the volume will be directly proportional to the temperature. Note that the temperature here should only use the Kelvin unit. Before compressed, the volume of the gas is 50ml(V1) and the temperature is 20K (T1). After compressed the volume becomes 10ml(V2). The calculation will be:

V1 / T1= V2 / T2

50ml / 20K = 10ml / T2

T2= 10ml/ 50ml * 20K

T2= 4K

7 0
3 years ago
Please help me answer this question?
madam [21]
I hope this helps you alot and to my understanding:)

5 0
2 years ago
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