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
Sergeu [11.5K]
2 years ago
5

GIVING 75 POINTS!

Chemistry
2 answers:
viva [34]2 years ago
6 0

Answer:

Explanation:

A process by which water moves from Earth's surface into the sky and back again

Ilya [14]2 years ago
4 0
The third option is correct. A process by which water moves from Earth's
surface into the sky and back again
You might be interested in
4. The vet instructed Manuel to give his
djverab [1.8K]

Answer:

=60 milligrams

Explanation:

12 x 5

=60 milligrams

Have a nice day!!!!!!! :-)

<u>KA</u>

3 0
3 years ago
This is a property of matter that can be identified without changing the identity of the substance.
Mrac [35]
<h3><u>Answer;</u></h3>

Physical property

<h3><u>Explanation;</u></h3>
  • A physical property is an aspect of matter that can be observed or measured without changing it. Examples of physical properties include color, shape, size, molecular weight and volume.
  • A chemical property on the other hand may only be observed by changing the chemical identity of a substance, that includes whether it can undergo a certain chemical change .

8 0
3 years ago
Read 2 more answers
Write a balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air.
Lelechka [254]

Answer: The balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air is CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O.

Explanation:

When a substance tends to gain oxygen atom in a chemical reaction and loses hydrogen atom then it is called oxidation reaction.

For example, chemical equation for oxidation of methane is as follows.

CH_{4} + O_{2} \rightarrow CO_{2} + H_{2}O

Number of atoms present on reactant side are as follows.

  • C = 1
  • H = 4
  • O = 2

Number of atoms present on product side are as follows.

  • C = 1
  • H = 2
  • O = 3

To balance this equation, multiply O_{2} by 2 on reactant side. Also, multiply H_{2}O by 2 on product side. Hence, the equation can be rewritten as follows.

CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O

Now, the number of atoms present on reactant side are as follows.

  • C = 1
  • H = 4
  • O = 4

Number of atoms present on product side are as follows.

  • C = 1
  • H = 4
  • O = 4

Since, the atoms present on both reactant and product side are equal. Therefore, this equation is now balanced.

Thus, we can conclude that balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air is CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O.

4 0
3 years ago
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and
crimeas [40]

Answer:

B) The farther away from the Sun, the thinner a planet's atmosphere. Closer planets need more protection from the heat.

Explanation:

The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets.

6 0
4 years ago
Read 2 more answers
If an experiment produces 5 g but should have made 500 g, what is the percent<br> yield?
hoa [83]

Answer:

Percentage of yield = 1%

Explanation:

Given:

Amount of yield = 5g

Total amount of product = 500 gram

Find:

Percentage of yield = ?

Computation:

⇒ Percentage of yield = [Amount of yield / Total amount of product]100

⇒ Percentage of yield = [5g / 500g]100

⇒ Percentage of yield = [0.01]100

⇒ Percentage of yield = 1%

7 0
4 years ago
Other questions:
  • What is the density of a smaple if it weight 3.5 grams and has a volume of 2cm^3
    6·1 answer
  • A team of researchers are working on a project to make a new kind of airplane fuel. During their experiment, there was an explos
    8·1 answer
  • Butter is melted in a pan. Which of the following is true about the change?
    7·2 answers
  • A 7.36 g sample of copper is contaminated with a additional 0.51 g sample of zinc. suppose an atomic mass measurement was perfor
    12·1 answer
  • Are there any plans for controlling or removing zebra mussel
    5·1 answer
  • Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. Moss campion is
    10·1 answer
  • Will mark brainliest!!
    7·1 answer
  • 4 % չայրվող խառնուկներ պարունակող 500 գ ծծմբի այրումից ստացվել է 268,8 լ (ն. պ.) ծծմբի (IV) օքսիդ: Որքա՞ն է ռեակցիայի ելքը (%) .
    15·1 answer
  • Four forces are exerted on each of the two objects shown below:
    8·1 answer
  • 7. Which particle diagram represents a mixture of three substances?"<br> Which option?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!