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
VLD [36.1K]
3 years ago
9

Two lab assistants measured a metal rod. One reported the measurement as 250 cm, and the other measured it as 250. cm. These mea

surements are equally precise.
True
False
Chemistry
1 answer:
VladimirAG [237]3 years ago
8 0
The answer is f or false
You might be interested in
The number of particles in 1 mole of hydrogen gas is ________.
ivanzaharov [21]
Hidrogen gas is a diatomic gas, this is H2, which means that one molecule of gas has two atoms (every molecule of hydrogen gas consists in H2).

The particles in gases are the molecules, not atoms.

So, every molecule is a particle, and when you are told that you have 1 mole of hygrogen gas means that you have 1 mole of H2 molecules which is the same that 1 mole of particles.

Therefore, the answer is one mole.
3 0
3 years ago
A slice of Swiss cheese contains 47 mg of sodium. (a) What is this mass in grams? .047 (b) What is this mass in ounces? (16 oz =
MAVERICK [17]

Answer:

(a) 0.047 g (b) 0.0016 oz (c) 0.0001 lb

Explanation:

The given mass of the sodium in the slice = 47 mg

(a) Mass has to be calculated in grams

The conversion of mg to g is shown below as:

1 mg = 10⁻³ g

So,

<u>Mass of sodium = 47 × 10⁻³ g = 0.047 g</u>

(b) Mass has to be calculated in ounces

The conversion of ounces to g is shown below as:

453.6 g = 16 oz

Or,

1 g = 16 / 453.6 oz

So,

<u>Mass of sodium = (0.047 × 16) / 453.6 oz = 0.0016 oz</u>

(c) Mass has to be calculated in pounds

The conversion of pounds to g is shown below as:

1 lb = 453.6 g

Or,

1 g = 1/ 453.6 lb

So,

<u>Mass of sodium = (0.047 × 1) / 453.6 oz = 0.0001 lb</u>

5 0
3 years ago
Why weren’t scientists initially concerned that the ocean absorbs excess carbon dioxide?
nasty-shy [4]
They only discovered
5 0
3 years ago
Calculate the number of molecules of sulphur S8 in 8 gram of solid Sulphur​
Luden [163]

Answer:

12gram

Explanation:

test told me

7 0
3 years ago
first used the term cell when he used a (5)_____ to observe box-like structures when he was examining cork under a microscope. (
MrRa [10]

Answer:

sorry if its wrong.

Explanation:

(5) a cell was used to refer to these tiny units of life

(6) Robert Hooke

(7)  cell walls

(8) modern cell theory. im so sorry if im wrong.

3 0
3 years ago
Other questions:
  • . What kind of chemist studies the mechanism that drives the rate of energy transfer in chemical reactions?
    5·2 answers
  • How many total orbitals are within the 2s and 2p sublevels of the second
    12·1 answer
  • Which of these equations best summarizes photosynthesis?
    10·1 answer
  • 224/88Ra+4/2He+? find the missing isotope
    5·1 answer
  • Which of the following chemical reactions is reversible?
    9·2 answers
  • If a,b,c are in AP &amp; x, y, z are in GP, prove that: x^(b-c).y^(c-a).z^(a- b) = 1
    5·1 answer
  • When carbon is in a plant, what form is it in?
    14·1 answer
  • Which equation represents a redox reaction?
    13·2 answers
  • Convert a speed of 141 mi/h to units of feet per minute show work.
    10·1 answer
  • Explain why one molecule of nabh4 will reduce only two molecules of m acetylbenzaldehyde to form the corresponding product
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!