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
Shtirlitz [24]
3 years ago
15

A metal, M, forms an oxide compound with the

Chemistry
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

Group 1

Explanation: because the compound has a formula of M2O , the number of valence electrons of M should be 1.

You might be interested in
Polonium has a mass number of 212 and an atomic number of 84. In a balanced nuclear reaction, polonium releases an alpha particl
antoniya [11.8K]

Answer:

D. 82

Explanation:

3 0
2 years ago
How does the density of a gas depend on the molar mass of the gas?
AlladinOne [14]

Answer:

The density of the ideal gas is directly proportional to its molar mass.

Explanation:

Density is a scalar quantity that is denoted by the symbol ρ (rho). It is defined as the ratio of the mass (m) of the given sample and the total volume (V) of the sample.

\rho = \frac{m}{V}                          ......equation (1)

According to the ideal gas law for ideal gas:

PV = nRT                                       ......equation (2)

Here, V is the volume of gas, P is the pressure of gas, T is the absolute temperature, R is Gas constant and n is the number of moles of gas

As we know,

The number of moles: n = \frac{m}{M}

where m is the given mass of gas and M is the molar mass of the gas

So equation (2) can be written as:

PV = \frac{m}{M}RT

⇒ PM= \frac{m}{V} RT

⇒ \frac{PM}{RT}= \frac{m}{V}             ......equation (3)

Now from equation (1) and (3), we get

\frac{PM}{RT}= \frac{m}{V} = \rho  

⇒ Density of an ideal gas: \rho = \frac{PM}{RT}  

⇒ <em>Density of an ideal gas: ρ ∝ molar mass of gas: M</em>

<u>Therefore, the density of the ideal gas is directly proportional to its molar mass. </u>

6 0
3 years ago
While both comets and asteroids are found to orbit the sun in our solar system which system which choice correctly explain how t
Alika [10]

Answer:

Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

Explanation:

thats how they are different from each other

6 0
3 years ago
What three types of Protists have been discovered
frosja888 [35]

Answer:

the answer is D

Explanation:

but hope this helps

8 0
2 years ago
Read 2 more answers
Help with Organic chemistry mechanism
yarga [219]
3H + 3Br = HBr9 Organic chemistry mechanism
4 0
2 years ago
Other questions:
  • What is the coefficient of h2 when you balance the equation for this redox reaction? no2(g) + h2(g) → nh3(g) + h2o(l)?
    7·1 answer
  • 1. Energy is required for chemical
    10·1 answer
  • What is the molar mass of Fe(NO3)3
    5·1 answer
  • If eggs are so fragile, how do they actually protect the growing bird?​
    10·1 answer
  • #1Write a balanced chemical equation to show the reaction. Include state symbols.
    12·1 answer
  • Calculate the atomic mass of silver if 13 out of 25 atoms are silver-107 and 12 out of 25 are silver-109
    13·1 answer
  • Suppose you fill a grass with ice cubes. When the ice cubes melt, is the glass still full?
    12·1 answer
  • A TLC plate showed 2 spots with Rf values of 0.25 and 0.26. The plate was removed from the developing chamber, the residual solv
    14·1 answer
  • Does anyone know how to make this a longer sentence?
    14·2 answers
  • A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical reaction that occurred is show
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!