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
sattari [20]
3 years ago
6

PLS HURRY 25 points

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
7 0

Answer:

its has to be AAAAAAAAAA

lesya [120]3 years ago
6 0

Answer:

The answer is A

Explanation:

You might be interested in
When you balance a redox equation using the half-reaction method, what do you do after you balance the atoms and charges?
dsp73

Answer:

D add the 2 half reactions

5 0
2 years ago
Why are intensive properties useful for identifying a substance?
Lesechka [4]

Answer:

d

They do not depend on the amount of substance you have.

3 0
3 years ago
Express the diameter of a ground-state hydrogen atom in meters using a power of 10.
REY [17]
<span>Throughout the development of particle physics, scientists have created different models to understand the atom. When we are talking about the diameter of an atom, we would refer to the Bohr radius, which is the radius from the nucleus to the orbiting electron. In this case, a hydrogen atom has one electron, and the Bohr radius in the ground state is 5.29 x 10^{-11} meters. To find the diameter, we just multiply the Bohr radius by 2. diameter = 2 x 5.29 x 10^{-11} meters diameter = 10.58 x 10^{-11} meters diameter = 1.058 x 10^{-10} meters The diameter of a hydrogen atom in ground state is: 1.058 x 10^{-10} meters</span>
8 0
3 years ago
Everyone in Mrs. Blaylock's science class must perform an experiment for the science fair this year. To begin this process, Mrs.
sergey [27]

Answer:

  • <u>Second choice: </u><em><u>How does the position of the Sun, moons, planets and stars affect a person's personality traits and daily behavior patterns?</u></em>

<u></u>

Explanation:

Science or scientific investigations deal with objective phenomena; this is phenomena which can be described by using objective measurements.

The effect of the position of the Sun, moons, planets and stars on a person's personality and daily behavior patterns is not a scientific question because none scientific field deals with that kind of questions.

Only, a pseudoscience, this is a set of beliefs that have not been scientifically proved, may deal with a question about the effect of the position of some heavenly objects can affect a person's personality traits and daily behavior of patterns.

On the other hand, the aspects deal with in the other questions (the mass of a toy car, the speed down a ramp, the heating from different type of pans, how different type of chemicals remove the cell wall of a plant cell) are measurable and testable (falsifiable), which make them objects of science (like physics, chemistry, and biology)

6 0
3 years ago
What is the mass of 4.84×10^21 platinum atoms?
Ket [755]
The mass will be 1.54g
7 0
3 years ago
Read 2 more answers
Other questions:
  • The level of electromagnetic radiation is much higher is space.<br><br> True<br><br> False
    13·2 answers
  • For the following reaction, 5.05 grams of copper are mixed with excess silver nitrate. The reaction yields 11.0 grams of copper(
    9·1 answer
  • Fluorine (F) has seven electrons in its outermost shell. Fluorine _____.
    8·2 answers
  • - How many electrons does a neutral atom of Magnesium-25, have?
    12·1 answer
  • How would a balloon left in a car on a hot day change and why?
    15·1 answer
  • 4 pts
    14·1 answer
  • Calculate the volume (in cm³) of 935 grams of steel. The density of steel is 7.8 g/cm³. Give your answer to 2 decimal places.
    7·1 answer
  • What is an object that allows electricity to flow through it?
    15·1 answer
  • An atom has 15 protons and 14 Neutrons. What is the atomic number of this atom?
    7·2 answers
  • Is a change in color when combining two substances normally a sign of a chemical change or a physical change?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!