3 years ago

I need help on my chemistry quiz

Chemistry

1 answer:

slamgirl [31]3 years ago

4 0

Answer:

it could be 25degrees c... not sure

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Carry out the following calculation, paying special attention to the significant figures (where 4/3 is exact), rounding, and uni

babunello [35]

Answer:

Value = 1.80 g/cm³ (Approx)

Explanation:

Given:

$\frac{3.39 \times 10^7g}{(\frac{4}{3} )(3.1416)(1.65 \times 10^2 cm)^3}$

Computation:

$\frac{3.39 \times 10^7g}{(\frac{4}{3} )(3.1416)(1.65 \times 10^2 cm)^3} \\\\\frac{3.39 \times 10^7g}{(\frac{4}{3} )(3.1416)(4.492125 \times 10^6 cm^3)} \\\\ \frac{3.39 \times 10^7g}{(\frac{4}{3} )(3.1416)(4.492125 \times 10^6 cm^3)}\\\\ \frac{3.39 \times 10^7g}{18.8166132\times 10^6 cm^3} \\\\ 1.80159945g/cm^3$

Value = 1.80 g/cm³ (Approx)

7 0

3 years ago

How many molecules are in 83.2 g of chlorine gas (Cl2)?

Alisiya [41]

Answer:

1. 1.8 mol or the 2 one (B)

Explanation:

5 0

2 years ago

Formula for zinc + nitric acid = zinc nitrate

Maslowich

Answer:

<em>Zinc nitrate is an inorganic chemical compound with the formula Zn(NO3)2. This white, crystalline salt is highly deliquescent and is typically encountered as a hexahydrate Zn(NO3)2•6H2O. It is soluble in both water and alcohol.</em>

Explanation:

correct me if im wrong please

4 0

3 years ago

4. Describe a solution and tell if the parts are mixed chemically or physically help please will give brainliest

Stels [109]

Hello There!

The solution: salt water
Mix: Physical as you could still separate them

A chemical mix can't be reversed.

Hope This Helps You!
Good Luck :)

- Hannah ❤

5 0

3 years ago

A reliable source is one that _____.

hodyreva [135]

D. Kinda simple, don’t think much explaining is needed.

7 0

3 years ago

Read 2 more answers