All categories

3 years ago

Help me with 5-11 Reward - 15 points

Chemistry

2 answers:

NISA [10]3 years ago

6 0

5. is b
6. is c
7. is a
8. is d
9. is d
10.is d
11. is c

igor_vitrenko [27]3 years ago

5 0

5. C
6. C
7. B
8. B
9. A
10. A
11. D

You might be interested in

What are the processes for the 3 types of weathering

sweet [91]

The processes for the 3 types of weathering are,
biological: rocks worn down by plants
physical: water freezing and thawing in cracks of rocks
chemical: Acid rain
Hope this helped!!

7 0

4 years ago

How does prairie grasses protect soil

jeyben [28]

Prarie Grass Protects soil ( And this is just what I think, so I am sorry if I am wrong)

But I think that the grass is there so that the dirt doesn't fly away.

4 0

3 years ago

PLEASE HELP ASAP !!!

Alchen [17]

Answer: Naprox 350 is the anwser

Explanation: because to fourmals mixed makes naprox know as gr27

6 0

3 years ago

CALCULATOR

suter [353]

Answer: The possible molecular formula will be $CO_2$

Explanation:

Mass of C= 27.3 g

Mass of O = 72.7 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{27.3g}{12g/mole}=2.275moles$

Moles of O = $\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{72.7g}{16g/mole}=4.544moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{2.275}{2.275}=1$

For O = $\frac{4.544}{2.275}=2$

The ratio of C : O = 1: 2

Hence the empirical formula is $CO_2$

The possible molecular formula will be= $n\times CO_2$

5 0

3 years ago

Electronegativity is defined as a measure of the tendency of atoms to attract electrons in a chemical bond.

stira [4]

True.......................................

4 0

3 years ago