Answer:
A. An absorber that is dark in color and rough
Answer:
A) 2Fe+6HCl=3H2+2FeCl
B) 11.25
Explanation:
A)---
B) 2 - 7.5
3 - x ⇒ 2x = 7.5*3 ⇒x = 22.5/2 = 11.25
24
Explanation:
we have the equation d = m/v so here the density is 12 and the volume is 2, 12 = m/2. in this situation we multiply 12×2= 24. The mass is 24.
Let's check if it works with the formula
24/2 = 12
12 = 24/2
yes. it works
the answer is mass = 24
Answer:
WHY: You can abbreviate an element's electron configuration using the noble gas notation method because when you get down to the lower elements, specifically the d's and the f's, the electron configuration will be very long. The noble gas notation method is a faster answer while also being correct.
HOW: We can abbreviate an element's electron configuration by finding the last noble gas a specific element passed, for example calcium would have just passed Argon. Once you have the "address" of the previous noble gas, then you add on the difference between the element chosen and the noble gas, for example calcium would be [Ar] 4s^2.
Explanation:
To fill in the blank, the correct word is Mixture.
What is a Mixture?
- Matter that can vary in its composition is a(n) mixture.
- The substances that make up mixtures are not bonded together.
