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
Vaselesa [24]
3 years ago
14

Significant digits are the number of digits that reflect the precision of a measurement or number. true or false

Chemistry
1 answer:
Marizza181 [45]3 years ago
5 0
Im pretty certain thats true.
You might be interested in
What Is the answers?
Yuki888 [10]

Answer:

oxygen is responsible for rusting

5 0
2 years ago
Read 2 more answers
The number of grams of H2 in 1470 mL of H2 gas. ​
Lorico [155]

Answer:

0.1313 g.

Explanation:

  • It is known that at STP, 1.0 mole of ideal gas occupies 22.4 L.
  • Suppose that hydrogen behaves ideally and at STP conditions.

<u><em>Using cross multiplication:</em></u>

1.0 mol of hydrogen occupies → 22.4 L.

??? mol of hydrogen occupies → 1.47 L.

∴ The no. of moles of hydrogen that occupies 1.47 L = (1.0 mol)(1.47 L)/(22.4 L) = 6.563 x 10⁻² mol.

  • Now, we can get the no. of grams of hydrogen in 6.563 x 10⁻² mol:

<em>The no. of grams of hydrogen = no. of hydrogen moles x molar mass of hydrogen</em> = (6.563 x 10⁻² mol)(2.0 g/mol) = <em>0.1313 g.</em>

5 0
3 years ago
Molecular formula: C19H16
eimsori [14]
Is the something missing from the question
8 0
3 years ago
Please help me, please
kumpel [21]
The temperature of a substance is related to the speed of the substance's particles. So, when the temperature of a substance changes,the speed of the particles also changes. So B.
6 0
3 years ago
How many grams of KCI can be dissolved in 63.5. g of water at 80
Masteriza [31]

Answer:

35.8 g

Explanation:

Step 1: Given data

Mass of water: 63.5 g

Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C

Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.

63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl

8 0
3 years ago
Other questions:
  • What is the chemical name for HCI
    10·2 answers
  • What properties would you expect to be different for the two enantiomers of 2-pentanol?
    14·1 answer
  • What causes the plates of the lithosphere to move?
    9·1 answer
  • Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
    13·1 answer
  • What happens with the atomic numbers in nuclear equations?
    7·1 answer
  • (Thermodynamics)
    9·1 answer
  • To convert from mass of X to liters of Y in any stoichiometry problem, the following steps must be followed
    13·1 answer
  • A student heats a LaTeX: 2.5 g sample of calcium carbonate in a test tube. What mass of calcium oxide remains in the test tube w
    5·2 answers
  • Identify the relationship between &lt;2 and &lt;4*
    11·1 answer
  • Need help ASAP PLS SCIENCE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!