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
frozen [14]
3 years ago
6

Which of the following statements are true?

Chemistry
1 answer:
alisha [4.7K]3 years ago
6 0

Answer:

Skepticism, Animal testing, and Laboratories

Explanation:

You might be interested in
The variable in an experiment that is changed on purpose
DiKsa [7]
The answer is Independent Variable
4 0
3 years ago
Select the correct answer. When an atom in a reactant loses electrons, what happens to its oxidation number? A. Its oxidation nu
vfiekz [6]

Answer:

C. Its oxidation number increases.

Explanation:

  • <em><u>Oxidation is defined as the loss of electrons by an atom while reduction is the gain of electrons by an atom</u></em>.
  • Atoms of elements have an oxidation number of Zero in their elemental state.
  • When an atom looses electrons it undergoes oxidation and its oxidation number increases.
  • For example, <em><u>an atom of sodium (Na) at its elemental state has an oxidation number of 0. When the sodium atom looses an electrons it becomes a cation, Na+, with an oxidation number of +1 , the loss of electron shows an increase in oxidation number from 0 to +1.</u></em>
8 0
3 years ago
Read 2 more answers
Which of the following would be a quantitative observation? a.The solution has a volume of 25 mL b.The solution turned blue c.Th
alexandr402 [8]
The correct answer for this question is this one: " a.The solution has a volume of 25 mL "

The observation that shows a quantitative observation is when you are talking about numeric data. Just like this one, <em>The solution has a volume of 25 mL </em>
Hope this helps answer your question and have a nice day ahead.
5 0
3 years ago
On x
Lena [83]

Answer:

2

Explanation:

1+1=2

6 0
2 years ago
Name two methods of separating mixtures. Describe the property each of these separations based
grigory [225]

Answer:

Distillation and using Chromatography

Explanation:

Distillation:

based on using boiling point.

Ex: separating a mixture of water and sugar by boiling the water away.

Chromatography:

based on absorption

Ex: separating the different colours that make up a black marker

8 0
3 years ago
Other questions:
  • PLEASE LOOK AT POST MARKING BRAINIEST
    8·1 answer
  • A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is t
    5·1 answer
  • At 20.°C, a 1.2-gram sample of Mg ribbon reacts rapidly with 10.0 milliliters of 1.0 M HCl(aq). Which change in conditions would
    8·2 answers
  • Predict the following reaction<br> Kl+Pb(NO3)2-&gt;?
    11·1 answer
  • Nts) How many moles of oxygen gas are needed to react completely with 23.6 mL Mg, which has a density of 1.74 g/mL? unbalanced e
    14·1 answer
  • Which of the following chemical equations is NOT correctly balanced?
    13·1 answer
  • Photosynthesis is very important to us. Name 3 different types of ways you benefit from photosynthesis each day
    6·1 answer
  • mass of 6.584 g. After it is heated, it has a mass of 4.194 g. What is the percentage by mass of water in the hydrate?
    13·1 answer
  • 2. What is the relationship between mutation, natural selection and adaptation?
    11·1 answer
  • What is the basic unit of structure and function in all living things? a cell b organism c atom d plasma
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!