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
Roman55 [17]
3 years ago
7

Please help IM IN HURRY!!!

Chemistry
1 answer:
Vladimir [108]3 years ago
3 0
1.9000 kilogram/cubic meter
8400 kilogram/cubic meter
19300 kilogram/cubic meter
You might be interested in
Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical chan
qwelly [4]

Answer:

what were the results

Explanation:

3 0
3 years ago
Read 3 more answers
Keesha performed a chemical reaction and the products looked quite different from the reactants. She knew the amount of matter h
lakkis [162]

Answer:

the spotlight effect.

Explanation:

The spotlight effect is a tendency to think that people get noticed more often than they really do. It is an overestimation of the situation regarding the concern of getting observed. It concerns the self-confidence of an individual. For example, an individual feels that everybody in a party would notice him for a bad pair of shoes while in reality, it does not concern them.

As per the question, the overestimation of people's reaction is known as the spotlight effect.

5 0
3 years ago
A radioactive sample has a half-life of 5 hours. What fraction of the sample will be left after 15 hours?​
DedPeter [7]

Explanation:

hiiiii beautiful.........

6 0
3 years ago
Sodium atoms differ from sodium ions in that sodium atom contains
Olenka [21]

Explanation:

sodium atom is neutral while sodium ion is a charged specie with a charge of +1

3 0
3 years ago
Molybdenum has a molar mass of 95.94g/mol. How many molecules of molybdenum are in 150.0 g of molybdenum
Kitty [74]
We are given the molar mass of Molybdenum as 95.94 g/mol. Also, the chemical symbol for Molybdenum is Mo. This question is asking for the amount of molecules of molybdenum in a 150.0 g sample. However, since molybdenum is a metal and it is in the form of solid molybdenum, Mo (s), it is not actual a molecule. A molecule has one or more atom bonded together. We will instead be finding the amount of atoms of Molybdenum present in the sample. To do this we use Avogadro's number, which is the amount of atoms/molecules of a substance in 1 mole of that substance.

150.0 g Mo/ 95.94 g/mol = 1.563 moles of Mo

1.563 moles Mo x 6.022 x 10²³ atoms/mole = 9.415 x 10²³ atoms Mo

Therefore, there are 9.415 x 10²³ atoms of Molybdenum in 150.0 g.
5 0
3 years ago
Other questions:
  • When substances are formed that are different from the starting substances, a physical change has occurred. True False
    6·2 answers
  • A student wants to know which part of his local beach contains the most turtle nests during nesting season. He researches turtle
    8·2 answers
  • What is the chemical formula for a compound that has 1 Nitrogen and 3 atoms of Hydrogen?
    14·1 answer
  • an empty 250 milliliter beaker has a mass of 60 grams. When 100 milliliters of oil is added to the beaker, the total mass is 140
    5·1 answer
  • In which way are evaporation and condensation similar?
    10·2 answers
  • What is the boiling point of water?<br> a. 0 ºc<br> b. 32 ºc<br> c. 100 ºc<br> d. 212 ºc
    15·2 answers
  • In the chemical formula 2so2, how many total atoms of sulfur (s) are there? 1 2 4
    5·1 answer
  • What is (3 X 10^3) +(2.5 X 10^6)? *
    11·2 answers
  • What chemicals must be cycled through a Martian environment in order for the planet to be habitable for life? Describe how scien
    12·1 answer
  • Explain why ionic compounds are formed when a metal bonds with a nonmetal, but covalent compounds are formed when two nonmetals
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!