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Sladkaya [172]
3 years ago
15

You are given a cube with a length of 2.5 a width of 2.5 cm and a height of 2.5 cm you place it on a scale and its mass is 295g

calculate the density
Chemistry
1 answer:
ss7ja [257]3 years ago
7 0
density=\frac{mass}{volume}\\\\
m=295g\\
V=(2,5cm)^{3}=15,625cm^{3}\\\\
d=\frac{295g}{15,625cm^{3}}=18,88\frac{g}{cm^{3}}
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3.5 grams is equivalent to how many kilograms? 3500 kg 35,000 kg 0.35 kg 0.0035 kg
bagirrra123 [75]
There are 1000 grams in a kg.
To convert g to kg, dovide by 1000.

3.5/1000= 0.0035 kg

Final answer: D
4 0
3 years ago
Type the correct answer in the box. a pharmacist works with a 1.75 m solution of sodium bromide (nabr) and water. the volume of
Elodia [21]

Answer: 147 mL

Explanation:

<u>Given:</u>

Molarity of the sodium bromide (NaBr) solution (M1)  = 1.75 M

Volume of the solution (V1) = 84 mL

Molarity of the diluted NaBr solution (M2) = 1 M

Using the dilution formula to solve for V2:

\begin{gathered}M_{1} V_{1}=M_{2} V_{2} \\V_{2}=(1.75 \mathrm{M} \times 84 \mathrm{~mL}) / 1 \mathrm{M} \\V_{2}=147 \mathrm{~mL}\end{gathered}

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8 0
2 years ago
How many atoms of Hydrogen are in 67.2 L of H2 at STP?​
nekit [7.7K]

Answer:

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5 0
3 years ago
I need an answer and explanation pls
OverLord2011 [107]

Answer:

Cl2 + 2NaBr --> 2NaCl + Br2

Explanation:

This is a single displacement reaction where one side of the ionic compound switches with the other.

So, Cl2 + NaBr ---> NaCl + Br2

This isolates the Bromine and puts the Chlorine in it's place.

Then, balance out the equation like so and you should get

Cl2 + 2NaBr --> 2NaCl + Br2

8 0
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Based on the nature of chemical equilibrium, the system reached equilibrium first at the time T2.

<h3>What is chemical equilibrium?</h3>

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In the table of the decomposition reaction given above, the system reached equilibrium first at the time T2 when the concentration of the reactant and products were the same.

Learn more about chemical equilibrium at: brainly.com/question/5081082

4 0
2 years ago
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