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
fredd [130]
2 years ago
7

Select all the statements that are TRUE about igneous rocks:

Chemistry
1 answer:
Leya [2.2K]2 years ago
7 0

Answer:

Intrusive rocks are formed by slow cooling lava/magma.

Igneous rocks are always formed from lava/magma.

Explanation:

You might be interested in
Naming and Writing Formulas Assignment.
AlexFokin [52]

Answer:

Having difficulties !!! screen shotted it :)

16. H20 - Covalent

17. Mn(NO2)2 - Ionic and called Manganese(II) nitrate

18. HgO - Ionic

19. Li3N - Covalent

7 0
1 year ago
Structure of 4-isopropyl-2,4,5-triethylheptane
SIZIF [17.4K]

Answer:

See the attached file

Explanation:

4 0
3 years ago
In the reaction Na2CO3 + 2HCl → 2NaCl + CO2 + H2O, how many grams of CO2 are produced when 7.5 moles of HCl is fully reacted?
Sidana [21]

Answer:

165 of CO₂.

Explanation:

In the reaction:

Na2CO3 + 2HCl → 2NaCl + CO2 + H2O

2 moles of HCl reacts producing 1 mole o CO₂

If 7.5 moles of HCl reacts, moles of CO₂ produced are:

7.5 moles of HCl ₓ ( 1 mol CO₂ / 2 mol HCl) = 3.75 mol CO₂. As molar mass of CO₂ is 44g/mol, mass of CO₂ is:

3.75 mol CO₂ ₓ (44g / 1mol) = <em>165 of CO₂ </em>

8 0
3 years ago
Read 2 more answers
How do you use pedigrees to determine and explain the inheritance of traits?
Firdavs [7]
We know that organisms inherit their traits from their parents, and these traits are a combination of the traits their parents possessed. Therefore, by using a pedigree to map the ancestry of an organism, we may evaluate the propagation of a specific trait through the organism's family. An example of this is when people are assessed for the risk of diseases like breast cancer and sickle cell anemia.
5 0
3 years ago
1#
Black_prince [1.1K]

Answer:

1= Magnesium

2 = Option 3 =  1s² 2s² 2p⁶

Explanation:

An electrically neutral atom consist of equal number of protons and electrons.

The answer for 1st q is magnesium because the electronic configuration showed twelve number of electrons. The atomic number of magnesium is twelve that's why this configuration is of Mg.

Mg₁₂ =  1s² 2s² 2p⁶ 3s²

The second answer is option three because has atomic number ten and third electronic configuration have ten electrons.

Ne₁₀ = 1s² 2s² 2p⁶

It is stable electronic configuration. Neon is inert because of this electronic configuration. The outer most shell is completely filled.

8 0
3 years ago
Other questions:
  • What information is needed to calculate the ph of a solution?
    8·1 answer
  • What are the three main parts to an electrons “address” used in the current atomic theory that describe an electrons location?
    13·1 answer
  • Which substance has vibrating particles in fixed positions? Ca(S) or CaCl2 (aq)
    9·1 answer
  • PLEASE HELP DUE TOMORROW
    9·1 answer
  • How many electrons are in the 4s sublevel for Bismuth
    6·2 answers
  • What is a system called when neither energy nor matter is exchanged between the system and the surroundings?
    5·1 answer
  • Which of the following would have a fixed shape and volume? (3 points) nitrogen gas solid wood liquid water neon gas
    11·1 answer
  • Green plants use light from the Sun to drive photosynthesis, Photosynthesis is a chemical reaction in which water (H1,0) and car
    13·1 answer
  • A sample of gas has an initial volume of 25 L and an initial pressure of 3.5 Pa. If the pressure changes to 1.3 Pa, find the new
    10·1 answer
  • If 747 joules of energy is added to a sample of aluminum (specific heat capacity = 0.899 J/g*C) and the temperature goes up from
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!