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
Ilya [14]
3 years ago
13

Which phrase best describes igneous rock

Chemistry
2 answers:
kozerog [31]3 years ago
5 0

Answer: a

Explanation:

Luden [163]3 years ago
4 0
Forms when lava and magma cool (A)
You might be interested in
Which member of the following pairs has the larger London dispersion forces?
Virty [35]

Answer:

H₂S; CO₂; SiH₄

Explanation:

London dispersion forces are larger in molecules that are large and have more atoms or electrons.

A. H₂O or H₂S

H₂S. S is below O in the Periodic Table, so it is the larger atom. Its electrons are more polarizable.

B. CO₂ or CO

CO₂. CO₂ has more atoms. It is also linear, so the molecules can get close to each other and maximize the attractive forces.

C. CH₄ or SiH₄

CH₄. Si is below C in the Periodic Table, so it is the larger atom. Its electrons are more polarizable.

4 0
3 years ago
How many atoms are in 123 g of calcium
Keith_Richards [23]

Answer:

Molar mass of Ca = 40 g / mol , given 123 g Ca is 123/40= 3.075 moles,

1 mole = 6.022 * 10^23 atoms, so 3.075 moles Ca= 18.51*10^23 atoms

Explanation:

5 0
3 years ago
Which of these limiting factors is MOST likely to affect low-growing plants in a tropical forest? Group of answer choices air wa
Georgia [21]

Answer:

air, water, sunlight

Explanation:

A limiting factor may be defined as a environmental condition or a resource that can limit the plant growth as well as distribution or the abundance of an organism or its population within the ecosystem. The ability  of any plant species to grow and spread throughout any geographic area is the direct result of the adaption to its biotic  and abiotic components of that region.

Some of the factor that affect the plant growth are : sunlight, air, proper temperature, moisture, nutrients, wind,etc.

The lack of the any one of the above essential component will determine the health of the  plant.

8 0
3 years ago
7. Which of the following changes could be associated with either a chemical change OR a
Elan Coil [88]

Answer:

a: chemical change because the change cannot be reversed.

b: physical change because the action can be reversed.

c: chemical change.

d:chemical change.

any change that cannot be reversed is a chemical change and any change that can be reversed is a physical change.

5 0
2 years ago
Can anyone answer these ? 40 points !!
lesantik [10]

1st one is D

2nd one is A

4 0
3 years ago
Other questions:
  • Which of the following does not involve colligative properties?
    9·2 answers
  • If the above two waveforms were sound waves, we would hear the ___________ wave louder. If the above two waveforms were light wa
    15·2 answers
  • Litmus paper is made from water-soluble dyes which are extracted from lichens. This paper is used as an acid-base indicator. Whi
    9·1 answer
  • trees are important in maintaining air quality, because they act like a filter, drawing particles from the air
    12·1 answer
  • How many moles are in 4.24kg of Na2CO3?
    6·1 answer
  • When 6.13 g of a certain molecular compound X are dissolved in 90. g of formamide (NH2COH), the freezing point of the solution i
    10·1 answer
  • Name the salt produced if sodium carbonate reacts with dilute nitric acid ? Write the equation.
    15·1 answer
  • A student observes that a ray of light bends where it passes from glass into water. What best explains this phenomenon? O The pr
    11·1 answer
  • Aluminum reacts with chlorine gas to produce aluminum chloride crystals. How many grams of aluminum chloride will be produced if
    8·1 answer
  • An ice wedge shattering a slab of shale<br><br> a<br> Chemical Change<br> b<br> Physical Change
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!