3 years ago

What is (2.5x10²)² =

2 answers:

8 0

The answer is 6.25 x 10^4.

5 0

1000 cause 10^2is 100 so it’s 2.5x100and that equals 250 x2x2 =1000

You might be interested in

Masja [62]

Physical change!

a solid that turns into a liquid is called melting and melting is a physical change.

something like that. sorry if it’s wrong

6 0

3 years ago

gladu [14]

Answer:

-248.425 kJ/mol

Explanation:

This question can be done by simply taking the ratios:

Since the given the heat change for 1.00 mol of $CO_2$ is -373.7 KJ/mol. Let us consider the required Heat Exchange at 0.631 mol of

We can write:

$\frac{-373.7} {1.00} = \frac{x}{0.631}$

$x = ( -373.7)(0.631)$

$x = -248.425$ KJ/mol

7 0

3 years ago

mars1129 [50]

Explanation:

3+3+6=12 is the three numbers adding up to 12

7 0

3 years ago

kramer

Answer:

Explanation:

Before Hybridization => C: 1s² ⇵ 2s²⇵ 2p₋₁↑ 2p₀↑ 2p₊₁∅

After Hybridization => C: 1s² 2sp¹ 2sp¹ 2p₀¹2p₊₁¹ => 2 hybrid orbitals and 2 unhybridized p-orbitals at the n=2 energy level.

3 0

3 years ago

Neporo4naja [7]

I’m taking chem rn in 9th grade so I might be able to help. What’s the question?

3 0

3 years ago