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
Elodia [21]
2 years ago
9

You need to measure out exactly 6.7 mL of water for an experiment. Which of the following would be the best tool for the job?

Chemistry
2 answers:
Free_Kalibri [48]2 years ago
4 0
The answer will be 10mL graduated cylinder
Zepler [3.9K]2 years ago
3 0

Answer:

The answer for this problem would be "b. A 10 mL graduated cylinder".

Explanation:

The reason for this is because with a instrument that is closer to the value you're trying to measure, the more precise it will be.

For example using a teaspoon to measure something rather than a cup.

You might be interested in
present day india is in south asia at the northern end of the indian ocean what evidence found in india matches that of other lo
alekssr [168]

Answer:

Lystrosaurus fossils are just found in Antarctica, India, and South Africa. Like the land abiding Cynognathus, the Lystrosaurus would have not had the swimming capacity to navigate any sea. Advanced portrayal of the Glossopteris. Potentially the main fossil proof found is the plant, Glossopteris.

Explanation:

Hope it helps

5 0
3 years ago
How many grams are in 1.11 moles of manganese sulfate, Mn3(SO4)7?
UNO [17]

Answer:

There are 167.60889 grams in 1.11 moles of manganese sulfate. The molecular formula of manganese sulfate is MnSO4.

Explanation:

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!
viktelen [127]
Grienr rjr or rjr rjr r
6 0
3 years ago
You and your lab partner are asked to determine the density of an aluminum bar. The mass is known accurately to 4 significant fi
zmey [24]

Answer:

Average density for method A = 2.4 g/cm³

Average density for method B = 2.605 g/cm³

Explanation:

In order to calculate the average density for each method, we need to add the data for each method, and then divide the result by the number of measurements (in this case is 4 for both methods):

  • For Method A:

Σ = 2.2 + 2.3 + 2.7 + 2.4 = 9.6

Average = 9.6/4 = 2.4 g/cm³

  • For Method B:

Σ = 2.603 + 2.601 + 2.605 + 2.611 = 10.420

Average = 10.420/4 = 2.605 g/cm³

5 0
3 years ago
Given a balanced chemical equation below: 3Cu(s) + 2H3PO4 --- > Cu3(PO4)2 + 3H2 How many moles of copper are needed to react
Harman [31]

Answer:

7.5 moles

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

3Cu + 2H3PO4 —> Cu3(PO4)2 + 3H2

From the balanced equation above,

3 moles of Cu reacted with 2 moles of H3PO4.

Therefore, Xmol of Cu will react with 5 moles of H3PO4 i.e

Xmol of Cu = (3 x 5)/2

Xmol of Cu = 7.5 moles

Therefore, 7.5 moles of Cu are needed to react with 5 moles of H3PO4.

4 0
3 years ago
Other questions:
  • A sample of water in a sealed flask at 298 k is in equilibrium with its vapor. this is an example of
    6·1 answer
  • 14 billion years (roughly the age of the universe) to seconds. (Assume there are 365 days in a year.)
    12·1 answer
  • The ancient Egyptians used black eye make up with which element just give me an element don’t give me a definition
    15·1 answer
  • Which group has different numbers of valence electrons
    7·1 answer
  • Which elements are likely to close electrons?
    15·1 answer
  • David's body breaks down the sandwich into small enough molecules that can be absorbed through his intestinal lining and then in
    11·2 answers
  • Explain why burning is a chemical change in wood
    9·2 answers
  • 1. What makes a plant vacuole different from an animal vacuole? |
    14·1 answer
  • 2. The energy of motion is called
    13·1 answer
  • Reflection obtained from a smooth surface is called a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!