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
marta [7]
4 years ago
8

PLEASE for the love of god answer these questions for me!!!! It’s urgent.

Chemistry
2 answers:
RideAnS [48]4 years ago
4 0

Igneous rock that forms from magma that cools slowly within Earth’s crust is likely to have larger crystals and a coarse-grained texture.

Igneous rock that forms from lava that cools quickly on Earth’s surface is known as extrusive igneous rock. Another word for extrusive is volcanic.

Because the sample of igneous rock formed on Earth’s surface, it is extrusive. Because it’s composed of mostly light-colored minerals, it is likely felsic.

Because the sample of igneous rock formed within Earth’s crust, it is intrusive. Because it contains a very high concentration of dark-colored, high-density minerals, it is likely ultramafic.

The fact that gabbro is an igneous rock suggests that it was formed from the cooling and crystallization of magma. The fact that it is intrusive means that it formed within Earth’s crust. The fact that it’s mafic suggests that it contains a high concentration of dark-colored, high-density minerals.

I am Lyosha [343]4 years ago
3 0

Answer:

1.Igneous rock that forms from magma that cools slowly within Earth’s crust is likely to have larger crystals and a coarse-grained texture.

2.Igneous rock that forms from lava that cools quickly on Earth’s surface is known as extrusive igneous rock. Another word for extrusive is volcanic.

3.Because the sample of igneous rock formed on Earth’s surface, it is extrusive. Because it’s composed of mostly light-colored minerals, it is likely felsic.

4.Because the sample of igneous rock formed within Earth’s crust, it is intrusive. Because it contains a very high concentration of dark-colored, high-density minerals, it is likely ultramafic.

5.The fact that gabbro is an igneous rock suggests that it was formed from the cooling and crystallization of magma. The fact that it is intrusive means that it formed within Earth’s crust. The fact that it’s mafic suggests that it contains a high concentration of dark-colored, high-density minerals.

You might be interested in
Which answer is INCORRECT not the correct one ​
Elena L [17]

Explanation:

It's 4

Hope it's help....

<h3>^_^</h3>
6 0
3 years ago
Read 2 more answers
How many moles are in 2.3 grams of phosphorus? :(
tatiyna

Answer:

there are 0.074 moles in 2.3 grams of phosphorus

4 0
4 years ago
4.0 L sample of methane gas is collected at 30.0c,<br> what is the volume of the sample at -8c?
Vedmedyk [2.9K]
This particular law is a gas law, called Charle's Law. The formula is:

V1    V2
---- = ----
T1     T2

So we know our original volume is 4.0L, so we would plug that into our V1. We know T1 is the 30 degrees, since it relates to our original volume. However, we need to convert it to kelvin. We do this simply by adding 273 degrees to the 30 degrees, since 273 is the constant for kelvin.

We do not know our second volume, however we know out T2. It is -8 degrees, and don't forget to convert it to Kelvin. 

So, when we plug all of these numbers into the equation, we are left with V2 to find. To do this we cross multiply (V1 x T2) and then divide by T1. That leaves us with the number for V2. Don't forget to round to the least # of sig figs! And you can divide V1 by T1, and then divide V2 by T2, to ensure your answers are the same, since they are directly porportional and need to be equal to each other. 

Hope I could help!
8 0
4 years ago
How many valence electrons does tin (Sn) have?​
Elena L [17]

Answer:

It has 4 valence electrons

Explanation:

Tin atoms have 50 electrons and 50 protons with 4 valence electrons in the outer shell.

6 0
3 years ago
Read 2 more answers
Consider the reaction that occurs when copper is added to nitric acid. Cu(s)+4HNO3(aq) ----&gt; Cu(NO3)2(aq)+2NO2(g)+2H2O(I). Wh
alexira [117]

Answer:

Cu

Explanation:

We can use oxidation numbers to figure out what is happening with the electrons.

\rm \stackrel{\hbox{0}}{\hbox{Cu}} + 4H\stackrel{\hbox{+5}}{\hbox{N}}O_{3} \longrightarrow \, \stackrel{\hbox{2+}}{\hbox{Cu}}(NO_{3})_{2} + 2\stackrel{\hbox{+4}}{\hbox{N }}O_{2} + 2H_{2}O

The oxidation number of Cu increases from 0 to +2 in Cu(NO₃)₂. The copper has gained two positive charges, so it has lost two electrons. It has been oxidized, so it is the reducing agent.

NO₃⁻ is wrong. The oxidation number of N decreases from +5 in NO₃⁻ to +4 in NO₂, so it has been reduced. It is the oxidizing agent.

Cu(NO₃)₂ and NO₂ are wrong. They are the products of the reaction. They cannot be either oxidizing or reducing agents in this reaction

4 0
4 years ago
Read 2 more answers
Other questions:
  • Dissolving 25.00 g cucl2 in enough water to make 250 ml of solution gives a solution concentration equal to
    8·1 answer
  • What happens when a solid is dissolved into a liquid
    12·2 answers
  • Sometimes a liquid can be sitting there and the molecules become gas. Thats called?
    12·1 answer
  • What Went Wrong – Balancing Chemical Equations
    11·1 answer
  • Which of the following statements about horizons is true?
    15·2 answers
  • What is mole percent?
    15·1 answer
  • PbO2 + 4HCl --- PbCl2 + Cl2 + 2H2O who buys electrons and who loses electrons?​
    5·1 answer
  • What is acid rain and which fossil fuels causes acid rain?
    11·1 answer
  • a compound with a molar mass of about 42g/mol contains 85.7% carbon and 14.3% hydrogen by mass. Write the Lewis structure for a
    5·1 answer
  • What is the general formula of an alkene?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!