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
arlik [135]
3 years ago
13

Could someone help with this? Much appreciated!

Chemistry
1 answer:
alekssr [168]3 years ago
6 0

Answer:

The 3rd answer down.

Na²O (sodium oxide) will be a base when exposed to water H²O

Explanation:

Sodium Oxide Na²O, will become Sodium Hydroxide after being exposed to water (at 80% I believe).

The oxygen ion in Na²O has 2 extra electrons which makes it highly charged and very attractive to hydrogen ions. The attraction is so strong that when Na²O comes in contact with H²O, the O(-2) strips off a hydrogen from water, forming 2 x OH ions which of course are still strongly basic.

You might be interested in
1. Which statement best describes how the field of plant breeding has evolved?
marissa [1.9K]

Answer:

i think it will option C Gregor men del was the 1st to breed plants

8 0
3 years ago
Read 2 more answers
Which of the following U.S. cultural regions is best known for serving seafood like lobster and clams?
zalisa [80]
The Northeastern region<span> of the </span>United States which is<span> often referred to as "New England"</span>
4 0
3 years ago
What volume of water has a mass of 1 kg
ruslelena [56]

Answer:

V=0.001\ m^3

Explanation:

Mass, m = 1 kg

The density of water, d = 1000 kg/m³

We need to find the volume of water. The formula for the density of an object is equal to mass divided by volume. Its formula is :

d = m/V

V is the volume of water

V=\dfrac{m}{d}\\\\V=\dfrac{1\ kg}{1000\ kg/m^3}\\\\=0.001\ m^3

So, the volume of water is 0.001\ m^3.

3 0
3 years ago
Read 2 more answers
What is the volume of 15.0 grams of H2S at STP
den301095 [7]
1 mole of any gas under STP has volume 22.4 L.
Molar mass M(H2S) = 2M(H) + M(S)= 2*1.0 +32.1=34.1 g/mol
15g * 1mol/34.1g= 0.440 mol
0.440 mol*1L/22.4L= 9.85 L 
<span> The volume of 15.0 grams of H2S at STP is 9.85 L.</span>

7 0
3 years ago
Read 2 more answers
Why are nutrient molecules important?
ycow [4]

Answer : Option A) The body breaks down the molecules into molecules they need.

Explanation : Nutrient molecules are important because the body breaks the nutrient molecules and convert it into the absorb-able molecule that can generate energy for doing the activities of the body.

Nutrients are taken in the body in the form of carbohydrates which later on gets broken into glucose molecules and generates energy, proteins which is decomposed into amino acids, fats breaks down into fatty acids, minerals and salts are also nutrients which is essential nutrient for body.

4 0
4 years ago
Read 2 more answers
Other questions:
  • What is restriction enzymes and what is it’s purpose?
    10·1 answer
  • Answer the question please
    14·1 answer
  • Calculate the activation energy for vacancy formation in aluminum, given that the equilibrium number of vacancies at 500°C (773
    6·1 answer
  • The prefix mili-means a thousand
    9·1 answer
  • A kind of foliated metamorphic rock?
    9·1 answer
  • MULTIPLE CHOICE QUESTION
    9·1 answer
  • 2 points
    5·1 answer
  • Which of the following are found outside the nucleus?
    7·2 answers
  • A horse runs 1 km in 15 s. What is the average speed
    14·1 answer
  • Cleaning PDB from the test tube after the experiment could be a long and arduous process. Describe the procedure that you will u
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!