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S_A_V [24]
3 years ago
14

Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5 cm3.

Chemistry
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:

3.8857037037g per cm3

Explanation:

52.357g/13.5 cm3 = 3.8857037037

Round if needed

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Which is one way that scientists ensure that data is reliable?
docker41 [41]

Answer:

letter b by replicating experiments

Explanation:

8 0
2 years ago
Please help!!! will give brainliest!!! 30 points! (need to put roman numeral in answer)
mariarad [96]

1. Nickel (II) Bromide

2. Iron (II) Oxide

3. Iron (III) Oxide

4. Tin (IV) Chloride

5. Lead (IV) tetrachloride

6. Tin (II) Bromide

7. Chromium (III) Phosphide

8. Iron (II) Fluoride

9. Gold (III) Chloride

I hope this helps. I'm more than 100% sure that all the answers except for number 7 are correct. I knew all of them off the top of my head except for this one. I hope the other answer has the correct answer for that one. Good luck and have a great day.

3 0
3 years ago
2. You have 200g or a solution that contains 30g of hydrochloric acid (HCI),
alex41 [277]

Answer:

the percentage of your solution that made up of HCI acid is 15%

Explanation:

The computation of the percentage of your solution that made up of HCI acid is given below:

Given that

There is 200g or a solution that have 0 g of hydrochloric acid (HCI)

Based on the above information

The percentage is

= 30g ÷ 200g

= 15%

Hence, the percentage of your solution that made up of HCI acid is 15%

7 0
3 years ago
Consider the equilibrium: HCOOH(aq) + F-(aq) <----> HCOO-(aq) + HF (aq) Given that the Ka of HCOOH = 1.8 x 10-4 and the Ka
Aleks [24]

Hey there!:

K = Ka * Kb / Kw

Ka = 1.8*10⁻⁴

Kb = 10⁻¹⁴ / 6.8*10⁻⁴

K =  1.8*10⁻⁴ * ( 10⁻¹⁴/ 6.8*10⁻⁴ ) * ( 1 / 10⁻¹⁴ )

K =  = 1.8 / 6.8

K = 0.265

Answer A

Therefore:

K is less than on the forward reaction is not favorable .


Hope That helps!

8 0
4 years ago
New substances formed during a chemical reaction are indicated -
Darya [45]

Answer:

on the right side of the equation and are called products

Explanation:

Reactants are on the left side of the equation. When reactants react, they give products.

Products formed are at the right side of the equation.

They are directed as reactant to product using an arrow pointing towards the products.

New substances formed are called products. Several By-Products can also be formed . They are also on the right hand side.

7 0
4 years ago
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