1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kakasveta [241]
3 years ago
9

Please help asap. will give brainliest to correct answer

Chemistry
1 answer:
Usimov [2.4K]3 years ago
7 0
The answer is 232 plus 450
You might be interested in
Quantum transitions that result in the characteristic sharp lines of the X-ray spectrum always involve
labwork [276]

Answer: 5

Explanation: this is because the energy level of the emitted of absorbed photon increases as the number of electron shell decreases, thereby making the inner shell have higher energy than other shells

4 0
3 years ago
why the total mass of the products would be less than the total weight of the reactant after a chemical reaction?
Lisa [10]
The best explanation would be that Gases were released during the Chemical reaction, causing a loss of Mass. 
4 0
3 years ago
calculate the heat required in joules to convert 18.0 grams of water ice at a temperature of -20 c to liquid water at the normal
KIM [24]

Answer:

Explanation:

Heat required to convert ice to ice at 0⁰C

= mass x specific heat x rise in temperature

= 18 x 2.09 x 20

= 752.4 J .

heat required to convert ice at 0⁰C to water at 0⁰C

mass x latent heat of fusion

= 18 x 336

= 6048 J

Heat required to increase the temperature of water to 100⁰C

= 18 x 4.2 x 100

= 7560 J

Total heat required

7560 + 6048 + 752.4

= 14360.4 J

7 0
3 years ago
What are some benefits of eating apples??
Lisa [10]
Apples are rich in fiber and antioxidants. Eating them is linked to a lower risk of many chronic conditions, including diabetes, heart disease, and cancer. Apples may also promote weight loss and improve gut and brain health.
5 0
2 years ago
Read 2 more answers
A rectangular block has the following dimensions: 3.21 dm, 5.83 cm, and 1.84 in. The block has a mass of 1.94 kg. What is the de
spin [16.1K]

The density of the rectangular block in g/mL is 7.0.

<u>Given the following data:</u>

  • Mass of block = 22.8 gra1.94 kg
  • Length of block = 3.21 cm
  • Width of block = 5.83 cm
  • Height of block = 1.84 in.

To find the density of the block in g/mL:

First of all, we would determine the volume of the rectangular block by using the following formula:

Volume = length × width × height

<u>Conversion:</u>

1 in = 2.54 cm​

5.83 in = X cm

Cross-multiplying, we have:

X = 2.54(5.83)\\\\X = 14.81 \; cm

Volume = 3.21 × 5.83 × 14.81

Volume = 277.16 cubic centimeters.

<u>Note</u>: Milliliter (mL) is the same as cubic centimeters.

1000 grams = 1 kg

Y grams = 1.94 kg

Cross-multiplying, we have:

Y = 1940 grams

Now, we can find the density:

Density = \frac{Mass}{Volume}\\\\Density = \frac{1940}{277.16}

<em>Density </em><em>= 7</em><em>.0 g/mL</em>

Therefore, the density of the rectangular block in g/mL is 7.0.

Read more: brainly.com/question/18320053

4 0
3 years ago
Other questions:
  • Doctors use the radioactive isotope chromium-51 to label red blood cells in the human body. Chromium-51 gives off relatively ___
    12·2 answers
  • I WILL RATE BRAINLIEST!!
    12·2 answers
  • It kinda healing it is kinda doing well
    7·1 answer
  • Which of these gives the best indication that a health service is based on pseudoscience?
    10·2 answers
  • How is oxygen different than neon explain your answer
    9·1 answer
  • You travel by express Greyhound bus from Indianapolis, IN to Tampa, FL; this is a distance of 1,070 miles. With no stops, the tr
    15·1 answer
  • What are the coefficients?
    11·1 answer
  • A chemical equation is balanced when the number of each type of __________ is the same on both sides of the yield sign.
    5·1 answer
  • 1 Calcium carbonate breaks down on heating to produce calcium oxide and carbon dioxide gas.
    13·1 answer
  • Question 34 (1 point)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!