3 years ago

What is uranium classified as

Chemistry

1 answer:

Free_Kalibri [48]3 years ago

7 0

Answer:

uranium is classifide as actinide a chemical element atomic number 92 and is a solid at room temperature

You might be interested in

Name different types of nutrients that our muscles need.

alexandr402 [8]

Answer:

Biotin. ...

Iron. ...

Vitamin C. ...

Selenium. ...

Omega 3. ...

Vitamin D. ...

Vitamin B12.

Explanation:

4 0

3 years ago

Read 2 more answers

Calculate the energy (in kJ) required to heat 10.1 g of liquid water from 55 oC to 100 oC and change it to steam at 100 oC. The

Maksim231197 [3]

Answer:

$\large\boxed{\large\boxed{24.6kJ}}$

Explanation:

1. Energy to heat the liquid water from 55ºC to 100ºC

$Q=m\times C\times \Delta T$

m = 10.1g

C = 4.18g/JºC

ΔT = 100ºC - 55ºC = 45ºC

$Q=10.1g\times 4.18J/g\ºC\times 45\ºC=1,899.81J$

2. Energy to change the liquid to steam at 100ºC

$L=\lambda \times n$

λ = 40.6kJ/mol

n = 10.1g / 18.015g/mol = 0.5606mol

$L=40.6kJ/mol\times 0.5604mol=22.76214kJ=22,762.14J$

3. Total energy

$1,899.81J+22,762.14J=24,661.95J\approx24,662J\approx24.6kJ$

7 0

3 years ago

A substance that prevents the flow of electric current is a(n) .

nasty-shy [4]

An Insulator.

Insulators prevent flow of electric current. Example is wood, clay.

4 0

3 years ago

Read 2 more answers

What feature forms on the ocean floor at a divergent plate boundary where two pieces of oceanic crust are moving away from each

solong [7]

Answer:

volcanos i think

Explanation:

learned it in 6th grade

6 0

3 years ago

Round to 4 significant figures. 0.007062

lapo4ka [179]

Answer:

Hey there!

This is already rounded to four significant figures!

Zeroes after the decimal but before the 7 don't count, and 7, 0, 6, and 2 count as significant figures.

So, the answer would be 0.007062.

Let me know if this helps :)

8 0

3 years ago