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Vika [28.1K]
2 years ago
13

11. How much heat is required to raise the temperature of a 25 gram block of wood from

Chemistry
1 answer:
icang [17]2 years ago
3 0

Answer:

Keep the pace of 5 C up until you get to about 60 C. Than Measure the totl amount of heat added to the factor of these numbers.

Explanation:

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How many significant digits are 6.3590x10 7 mm
Svet_ta [14]
If you go by the decimal there should be 5 significant digits because 0 is a trailing zero and matters since it comes after a decimal. however if you do 

6.3590 x 10 ^7 = 63590000 then you would only have 4 significant digits because there is no longer a decimal to make the zero after the 9, significant. 

Hope this helps!
8 0
3 years ago
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March 10<br> march 3<br> february 16<br> february 22
Lilit [14]

your answer will be March 3

4 0
2 years ago
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6. For each of the following sets of atoms, rank the atoms from smallest to largest atomic radius.
Alex787 [66]

Answer:

a (F < C < Li)

b (Li < Na < K)

c (Ge < P < O)

d (C < N < Al)

e (Ga < Cl < Al)

4 0
2 years ago
Because the light rays never meet, a concave lens can produce
Arturiano [62]

Answer:

Virtual images.

Hope this helps.

4 0
3 years ago
Radio waves travel at the speed of light which is 3.00 x 10^8. How many minutes does it take for a radio message to reach saturn
ryzh [129]

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = 3.00\times 10^8\ m/s

The distance = 7.9\times 10^8\ km

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,

Distance = 7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m

The relation between speed distance and time is shown below as:-

Speed=\frac{Distance}{Time}

Thus,

3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}

300000000\times time=10^{11}\times \:7.9\ s

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,

Time=\frac{2633.33}{60}\ min=43.89\ min

3 0
3 years ago
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