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Mariana [72]
3 years ago
13

An element that is malleable and a good conductor of heat and electricity could have an atomic number of.....

Chemistry
1 answer:
lilavasa [31]3 years ago
6 0
I think it is B) 18 but you'd have to check. Help?
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bogdanovich [222]

Answer:

amino acids

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3 years ago
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What mass of water will change its temperature by 3.0 0C when 525 J of heat is added to it? The specific heat of water is 4.184
pav-90 [236]

Answer:

Mass of water = 41.8 g

Explanation:

Given data:

Mass of water = ?

Change in temperature = 3.0 °C

Specific heat capacity = 4.184 j/g.°C

Heat absorbed = 525 j

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 3.0°C

Now we will put the values in formula.

525 J = m × 4.184 j/g.°C  × 3.0°C

525 J = m × 12.552 j/g

m =  525 J/ 12.552 j/g

m = 41.8 g

4 0
3 years ago
a sample of a substance has a mass of 52.5g and displaces a volume of 4.2ml. what is the density of the substance
Lena [83]

Answer:

<h2>Density = 12.5 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

From the question

mass = 52.5 g

volume = 4.2 mL

Substitute the values into the above formula and solve for the density

We have

Density =  \frac{52.5}{4.2}  \\

We have the final answer as

<h3>Density = 12.5 g/mL</h3>

Hope this helps you

3 0
4 years ago
What does neural mapping allow
zaharov [31]

Answer:

The answer is C

Explanation:

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2 years ago
1,000 millimeters is the same as _____
Aleksandr [31]

Answer:

1 meter

Explanation:

6 0
3 years ago
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