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
11111nata11111 [884]
3 years ago
11

Xg 4Na + 15g 02 → 70g 2Na20

Chemistry
1 answer:
aleksley [76]3 years ago
6 0

Answer: 43.125g

Explanation:4Na+ O2=2Na2O

Molar mass: 23. 32. 62. React.mass: 92.

You might be interested in
Balance this chemical equation. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici
larisa86 [58]
The first one have a nice day and good luck
8 0
3 years ago
Examine the statement about alchemy
Arturiano [62]

Answer: B.

Explanation:

7 0
3 years ago
It's actually Science but I didn't find it.
fomenos

Answer:

Forces acting on an object may be balanced or unbalanced. When the forces  acting on an object have <u>equal</u> strength and act in opposite directions, they  are <u>balanced</u>. These forces cancel out one another, and the <u>motion</u> of the  object does not <u>change</u>.  When the forces acting on an object are <u>unbalanced</u>, they do not cancel out  one another. An unbalanced force acting on an object results in the object’s  motion <u>changing</u>. The object may change its <u>speed</u> (speed up or slow down), or it may change its <u>direction</u>.  <u>Friction</u> is a force that resists the motion or the tendency toward motion  between two objects in contact with each other.  <u>Gravity</u> is a force that pulls objects toward one another. For example, Earth  pulls all objects toward it.

Explanation:

3 0
3 years ago
LOILO CIVILIANVEIV.<br> 4. The two new cells formed by mítosis are called
ikadub [295]

Mitosis is where the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.

8 0
3 years ago
If a sample is thought to be several million years old, which method would best help to determine its absolute age?
Makovka662 [10]
The answer is B)Ar-40/k-40
6 0
3 years ago
Other questions:
  • You are on an alien planet where the names for substances and the units of measures are very unfamiliar.
    12·1 answer
  • Astatine belongs to which element group: nonmetal, halogen, noble gas?
    6·1 answer
  • What is the oxidation state of cr in CrPO4 and Cr3(PO4)2?
    7·2 answers
  • 1. SEP Develop Models Develop a model to show the chemical potential energy of
    5·1 answer
  • Part a use valence bond theory to devise a hybridization and bonding scheme for co2. match the words in the left column to the a
    15·1 answer
  • A battery is an example of a(n) _________. A. anode B. voltaic cell C. cathode D. electrolytic cell
    15·1 answer
  • Which observation would most likely indicate that an endothermic reaction has occurred? O A. a color change O B. the production
    9·1 answer
  • Which statement about the change in bond energy of this reaction is correct?
    14·1 answer
  • Is each oxide basic, acidic, or amphoteric in water: (a) SeO₂ ;
    12·1 answer
  • At STP, 1 mole of gas has a molar volume of 22.4 L. What is the density (g/L) of oxygen at STP?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!