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
PtichkaEL [24]
3 years ago
12

Write formulas and names for two binary molecular compounds

Chemistry
1 answer:
lyudmila [28]3 years ago
7 0

Answer:

NaCl sodium chloride

HF hydrogen flouride

Explanation:

You might be interested in
Element X had a mass of 300g and a 1/2 life of 10 years. how many grams will remain after 40 years?
kiruha [24]
<h3>Answer:</h3>

18.75 grams

<h3>Explanation:</h3>
  • Half-life refers to the time taken by a radioactive material to decay by half of the original mass.
  • In this case, the half-life of element X is 10 years, which means it takes 10 years for a given mass of the element to decay by half of its original mass.
  • To calculate the amount that remained after decay we use;

Remaining mass = Original mass × (1/2)^n, where n is the number of half-lives

Number of half-lives = Time for the decay ÷ Half-life

                                 = 40 years ÷ 10 years

                                  = 4

Therefore;

Remaining mass = 300 g × (1/2)⁴

                            = 300 g × 1/16

                             = 18.75 g

Hence, a mass of 300 g of an element X decays to 18.75 g after 40 years.

3 0
3 years ago
when 0.72 g of a liquid is vaporized at 110° C and 0.967 atm, the gas occupies a volume of 0.559L. The empirical formula of the
Leno4ka [110]
Hydrogen gas mixed with sulfur
8 0
3 years ago
Two of the substances in part 1 are ionic. which factors will result in a stronger ionic bond overall?
olya-2409 [2.1K]
Greater absolute charge 
- This is because ionic bond results from stronger electrostatic forces of attraction.
- The higher the value of charges q₁ and q₂ the stronger will be the ionic bond. 
4 0
3 years ago
Read 2 more answers
Brainless if correct
LuckyWell [14K]

Answer:

B

Explanation:

5 0
3 years ago
Read 2 more answers
If a substance is composed entirely of one type of atom, it is known as a(n) _______.
Firlakuza [10]
<span>A substance is composed entirely of one type of atom, it is known as a Chemical element
because mixture contain more than one type of atom and it cannot be neutron or isotope
so correct option is B
hope it helps</span>
8 0
3 years ago
Other questions:
  • Metals (M) in group 2 of the periodic table form ionic bonds
    9·1 answer
  • Porque sirve el teorema de pitagora​
    10·1 answer
  • I don’t understand this page, can someone help?
    7·1 answer
  • To make most synthetic elements, scientists use powerful machines called
    8·2 answers
  • Which is not a characteristic of a mineral?
    13·1 answer
  • For work to be done on an object:
    13·1 answer
  • Why does an increase in temperature typically cause an increase in rate of reaction?
    6·1 answer
  • In science, the ability to do work is called _________.
    15·2 answers
  • What is the potential energy of 25kg rock sitting on the cliff with a height of 230m?​
    14·1 answer
  • How much aluminum nitrate can be found when 21g of aluminum react with lead (II) nitrate? Answer in units of mol.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!