This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Igneous rock that formed on Earth's surface by solidification of lava is known as a. extrusive ... (Read 66 times)

urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
on: Jul 28, 2018
Igneous rock that formed on Earth's surface by solidification of lava is known as
 a. extrusive rock.
  b. intrusive rock.
  c. metamorphic rock.
  d. silicate rock.

Question 2

The formula mass of Na2S is
 a. 55.1 u.
  b. 30.1 u.
  c. 78.1 u.
  d. 57.1 u.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcinincha279

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

c


urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Jul 28, 2018
Thanks


mcinincha279

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

The Sun as it appears from the surface of Earth during the middle of the day The Sun as it appears from the surface of Earth during the middle of the day
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
A container in the shape of a right circular cylinder with no top has surface area square feet. A container in the shape of a right circular cylinder with no top has surface area square feet.
The Small Intestine: A Huge Surface for Digestion & Absorption The Small Intestine: A Huge Surface for Digestion & Absorption
A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ... A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ...
Examples of Surface Barriers Examples of Surface Barriers
Video: Otitis Media

For a complete list of videos, visit our video library