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Tems11 [23]
2 years ago
14

HELP ME OUT PLEASE!!!!

Chemistry
2 answers:
Sunny_sXe [5.5K]2 years ago
7 0

Answer:

D Im 90% Sure

Explanation:

If its not right i owe you one I did this one before

PolarNik [594]2 years ago
5 0

Answer:

Answer D. Picture II shows a chemical change, because the same substance changes form

Explanation:

This is the temperature that water molecules slow down enough to stick to each other and form a solid crystal

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Please solve this problem using dimensional analysis. Show your
Citrus2011 [14]
<h3>Answer:</h3>

4.3 miles

<h3>Explanation:</h3>

We are given;

Distance of 22,704 feet

We are required to determine the number of miles in 22,704 feet

  • To convert one unit to another we use conversion factors
  • Therefore, we need to know the suitable conversion factor.
  • That is, 1 mile/5,280 feet
  • Thus, to determine the number of miles we multiply the number of feet with the conversion factor.

That is;

= 22,704 feet × 1 mile/5,280 feet

= 4.3 miles

Therefore, there are 4.3 miles in 22,704 feet

5 0
3 years ago
Curium-242 undergoes alpha decay. In addition to the alpha particle, which
ratelena [41]

Answer:

D. 238 94 pu

Explanation:

8 0
3 years ago
Read 2 more answers
a sample of 25.0g of an unknown metal is added to 25.0ml of water in a graduated cylinder and the final volume is 28.5ml what is
leva [86]

Answer:

<h2>The answer is 7.14 g/mL</h2>

Explanation:

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

density =  \frac{mass}{volume}  \\

From the question

mass of metal = 25 g

volume = final volume of water - initial volume of water

volume = 28.5 - 25 = 3.5 mL

It's density is

density =  \frac{25}{3.5}  \\  = 7.142857...

We have the final answer as

<h3>7.14 g/mL</h3>

Hope this helps you

8 0
3 years ago
Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in th
Natali5045456 [20]
A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25
6 0
3 years ago
Pubhvcghbb<br> Jgyukbcu?
tino4ka555 [31]

Answer:

WHAT??

Explanation:

3 0
3 years ago
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