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
satela [25.4K]
2 years ago
5

Lanthanium found in the......... period

Chemistry
1 answer:
Gnesinka [82]2 years ago
5 0
I'm preatty sure it is in the periodic table xxx

You might be interested in
Uhm so im kinda not the brightest so halp
Hoochie [10]

Answer:

(a) 156.41 (b) 10 and 14 (c) 16

Explanation:

Download pdf
3 0
2 years ago
Care needs to be taken when adding acid to base because
nikitadnepr [17]
<span>Mixing an acid and a base results in neutralization, but the results are potentially dangerous. No matter which acid or base is used, the resulting solution is water and varying types of salt. The process of neutralization often involves the substances heating up when they come together. If the solution heats up too much or too fast, a violent explosion or the creation of harmful or flammable gases is a possibility. This occurs when the chemicals are mixed too quickly, the acid and base are too strong or if there is no available salt to be made in the solution.</span>
3 0
2 years ago
Stored energy due to position is know as blank energy
Drupady [299]

Answer:

Potential energy

Explanation:

Potential energy is the energy possed by an object at rest. It is otherwise referred to as the stored energy due position.

6 0
3 years ago
How many grams of NaOH are produced from 20.0 grams of Na2CO3?
natita [175]

Answer:

Hope this helps!

Explanation:

Ans: 15.1 grams

Given reaction:

Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3

Mass of Na2CO3 = 20.0 g

Molar mass of Na2CO3 = 105.985 g/mol

# moles of Na2CO3 = 20/105.985 = 0.1887 moles

Based on the reaction stoichiometry: 1 mole of Na2CO3 produces 2 moles of NaOH

# moles of NaOH produced = 0.1887*2 = 0.3774 moles

Molar mass of NaOH = 22.989 + 15.999 + 1.008 = 39.996 g/mol

Mass of NaOH produced = 0.3774*39.996 = 15.09 grams

4 0
2 years ago
7) Why are fuel cells considered a "clean" energy source? *
Talja [164]
Hydrogen can be considered as a clean energy carrier similar to electricity. Hydrogen can be produced from various domestic resources such as renewable energy. ... Power generation,a hydrogen fuel cell generates electricity and gives off heat and water.
6 0
2 years ago
Other questions:
  • When your finger turns green from that new ring you bought ....what is happening?
    9·2 answers
  • Pickles are preserved by soaking cucumbers in a vinegar solution what are some properties of these pickles
    15·1 answer
  • Which is an element? A. salt B. carbon C. salt water D. carbon dioxide
    5·2 answers
  • Convert the given amount as noted.
    9·1 answer
  • True or false atoms of a given element will have the same mass
    9·1 answer
  • Study the timeline.
    14·2 answers
  • 4. What is percent error calculation used to determine?
    10·1 answer
  • Products in which titanium is used?
    15·1 answer
  • How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal soluti
    10·1 answer
  • Diabetes mellitus is characterized by too much glucose buildup in the blood. In _________________ diabetes, this is because the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!