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
scoray [572]
4 years ago
6

When conducting this experiment some procedures call for heating the substance several times and recording the mass after each h

eating continuing until the mass values are constant .explain the purpose and how it might reduce error.
Chemistry
1 answer:
Akimi4 [234]4 years ago
8 0

Answer:

by taking your time in order to collect data

Explanation:

You might be interested in
What happens to the Solar energy absorbed by plants during photosynthesis
qwelly [4]

Answer:

Plants, containing chlorophyll, undergo the process of photosynthesis. In this process, plants consume carbon dioxide and water, in the presence of sunlight, and convert it to glucose and oxygen. Thus, plants convert the light energy of the sun to the chemical energy of glucose.

Explanation:

6 0
4 years ago
In the following reaction, what is the effect of adding more NO2 to the starting reaction mixture?
Mars2501 [29]

Answer:

It would increase the final quantity of products

Explanation:

According to the Le- Chatelier principle,

At equilibrium state when stress is applied to the system, the system will behave in such a way to nullify the stress.

The equilibrium can be disturb,

By changing the concentration

By changing the volume

By changing the pressure

By changing the temperature

Consider the following chemical reaction.

Chemical reaction:

2NO₂ ⇄ N₂O₄

In this reaction the equilibrium is disturb by increasing the concentration of reactant.

When the concentration of reactant is increased the system will proceed in forward direction in order to regain the equilibrium. Because when reactant concentration is high it means reaction is not on equilibrium state. As the concentration of NO₂ increased the reaction proceed in forward direction to regain the equilibrium state and more product is formed.

5 0
4 years ago
How do spores help the survival of spore-bearing plant?
seropon [69]
They release spores into the air, often carried by the wind. They allow spore bearing plants to replicate themselves in a form of cloning.
7 0
3 years ago
Read 2 more answers
Dimethyl sulfoxide is an important polar aprotic solvent that can dissolve both polar and nonpolar compounds and is miscible in
lesya [120]

Answer:

The structure is shown below.

Explanation:

To draw a structure first we need to know its molecular formula, which is C2H6SO for dimethyl sulfoxide. The central atom is sulfur, which is bonded to an oxygen and with two methyl groups (CH3).

Sulfur has 6 electrons in its valence shell, as so oxygen. To complete the octet of oxygen, 2 electrons will be shared by sulfur with it. So, it remains 4 electrons at the central atom. Carbon has 4 electrons in its valence shell, so it needs more 4 to be stable, and is already sharing 3 electrons with the hydrogens, thus, sulfur will share one electron with each one of them.

So, it will remain 2 nonbonding electrons in the central atom. According to the VSPER theory, to minimize formal charges, the structure would be a trigonal pyramid, but, the double bonding with oxygen has a large volume, then the geometry will be trigonal, as shown below.

4 0
4 years ago
Where are the lanthanides and actinides found on the periodic table?
AlladinOne [14]

Answer:

C. Rows 6 and 7, separated from the rest of the table

Explanation:

The lanthanides and actinides are groups of elements in the periodic table, that are thirty (30) in number. They are separated from the rest of the periodic table, usually appearing as separate rows at the bottom. They are often called the inner transition metals, because they all fill the f-block.

Therefore, the correct option is C

" They are found in Rows 6 and 7, separated from the rest of the table"

8 0
3 years ago
Other questions:
  • How many valence electrons does sodium have?
    10·2 answers
  • This reaction is an explosive reaction of a strong acid combining with a strong base.
    7·2 answers
  • An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group? select
    5·1 answer
  • the atom is made of 3 subatomic particles. the subatomic particle found in the nucleus with a positive charge is the ___________
    8·2 answers
  • Evaluate this statement substances are made of two or more types of elements
    14·2 answers
  • mol of is added to of a solution. acids: bases: other: mol of is added to of a solution that is in both and acids: bases: other:
    7·1 answer
  • Identify the ion ratios needed to form neutral compounds from the ions below. The metal ion (cation) is listed first, and the no
    7·2 answers
  • What is “potential difference”? Please can someone define + explain this science term?
    15·1 answer
  • Name the chief allotopes of sulphur.How would you show that all the allotropes of sulphur consist of only sulphur?​
    5·1 answer
  • At 50.7 kPa and 15.0 °C a sample of gas occupies 120 L. Using the Combined Gas Law, what pressure does it occupy at 236 L and 10
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!