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
11Alexandr11 [23.1K]
2 years ago
7

Number 8 question need help

Chemistry
1 answer:
EastWind [94]2 years ago
8 0

Answer:

where is the question

Explanation:

pls. send it

You might be interested in
you produce 115 grams of water in a combustion reaction. how much methane do you need in grams for this to react?
lora16 [44]

Answer:about 2 grams of methane

Explanation:

idk just got this right

6 0
3 years ago
How many moles of CaO will be produced from 23.9 g of Ca?<br>2Ca(s) + O2(g) – 20:0(3)<br>mol​
inessss [21]

Answer:

0.6 moles of CaO will produced.

Explanation:

Given data:

Mass of calcium = 23.9 g

Moles of CaO produced = ?

Solution:

Chemical equation:

2Ca + O₂ → 2CaO

Number of moles of calcium:

Number of moles = mass/ molar mass

Number of moles = 23.9 g / 40 g/mol

Number of moles = 0.6 mol

Now we will compare the moles of calcium and CaO.

            Ca         :          CaO

              2          :          2

            0.6         :        0.6

 0.6 moles of CaO will produced.

4 0
3 years ago
What is the valency of Aluminium and nitrate in Al(NO3)3 ?​
Kitty [74]

Answer:xl/ck xLKsx

Explanation:sl/cs c/ls

3 0
3 years ago
Which rock type is an example of igneous glass?
irinina [24]

Answer:

obsidian

Explanation:

because it is an igneous rock which is smooth

5 0
2 years ago
What is the equation of sodium phosphide
BlackZzzverrR [31]
Na3P is the formula if that helps
6 0
3 years ago
Other questions:
  • Which elements properties form the basis for all life
    5·2 answers
  • PLEASE HELP!!!!!!!! All of the following are common air pollutants that can be damaging to the environment except
    6·2 answers
  • 17 Which substance can not be broken down by a chemical change?(1) ammonia (3) propanal
    11·2 answers
  • The smallest part of an element that can combine with other elements is an ________.
    7·2 answers
  • To use the gas law constant R = 0.0821, the unit for temperature should be Kelvin and the unit for volume should be milliliters.
    8·2 answers
  • How is the decomposing of water a chemical change?
    12·2 answers
  • One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal
    9·1 answer
  • A student takes a stock solution that is 50 mM (solute formula weight is 120.5 g/mol) and prepares a series of solutions. The fi
    6·1 answer
  • Name the group of elements that will not participate in ionic bonding.
    10·2 answers
  • A certain element has two naturally occurring isotopes. The atomic mass of isotope 1 (35.4723 % natural abundance) is 184.9529 a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!