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
Brilliant_brown [7]
1 year ago
12

For addition and subtraction, round the result to match the measurement with the fewest decimal places. For example,

Chemistry
1 answer:
Mariana [72]1 year ago
6 0

Answer:

7 cm

Explanation:

If the following digit is greater than or equal to 5, the decimal place is rounded up (moved up to the next number); if the following digit is less than 5, the decimal place stays the same.

4.6 + 2.35 = 6.95 cm

However, as stated in your question, cm is only being measured to the nearest 0.1 centimeters in your question.

So, you would round the digit 9 up by 1, meaning you would round it to 10. However, there are only nine digits available in our base-10 counting system, so you carry the value over,

6.95 cm could be rounded to '6. 100 cm', which is 7 cm.

You might be interested in
Is honey homogeneous or heterogeneous
RideAnS [48]
Honey<span> is a </span>homogeneous<span> mixture because it has the properties that define</span>homogeneous<span> solutions or mixtures.</span>
7 0
3 years ago
Hydrogen, oxygen, and chlorine are some of the ___ elements
Nimfa-mama [501]

Answer:

diatomic, non-metal

Explanation:

4 0
3 years ago
How many moles of kf are contained in 244 ml of 0.135 m kf solution? the density of the solution is 1.22 g/ml?
galben [10]
The Molarity of a solution = number of moles / volume.  
Volume = 244ml = 0.244L
 So it follows that number of moles = Molarity * volume 
 Number of moles = 0.135 * 0.244 = 0.03945.
 Hence the number of moles = 0.03945
6 0
2 years ago
Read 2 more answers
What mass of barium chloride, BaCL2, is required to completely precipitate the barium sulfate from 35.0 ml of 0.200 m h2so4?
faltersainse [42]
The balanced equation would be (1)BaCl2 + (1)H2SO4 --> (1)BaSO4 + (2)HCl2
Then you should know that the coefficients stand for moles.
The thing is I'm not sure if H2SO4 is 35 ml or .200 m. 
Also, is this topic stoichiometry?
5 0
3 years ago
Write an equation to show how perchloric acid, HClO4, reacts with water. Include states of matter in your answer. Click in the a
BARSIC [14]

Answer:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

Explanation:

When an acid dissolves in water, it will produce hydronium ion, H3O+ as the only positive ion.

perchloric acid, HClO4, being an acid will react with water, H2O to produce hydronium ion, H3O+ as shown below:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

8 0
3 years ago
Other questions:
  • A compound contains 64.27% carbon, 7.19% hydrogen, and 28.54% oxygen. the molar mass is 168.19 g/mol. what is the molecular form
    8·1 answer
  • What is the maximum number of electrons in the first electron shell, closest to the nucleus?
    9·2 answers
  • 80 POINTS!!! ALL PLATO USERS: asap!!!
    14·1 answer
  • A compound consists of 40.00% C, 6.713% H and 53.28% O on a mass basis and has a molar mass of about 180 g/mole. Determine the m
    9·1 answer
  • How many grams of acetylene are produced by adding water to 5.00 g CaC2?
    6·1 answer
  • The modern atomic model includes electrons orbiting the nucleus. which of the following parts of dalton's atomic model was dispr
    5·1 answer
  • When the Earth rotates, what happens to the constellations?
    11·2 answers
  • A sample of 0.0860 g of sodium chloride is added to 30.0 mL of 0.050 M silver nitrate, resulting in the formation of a precipita
    11·1 answer
  • What is the balanced equation and type of reaction for: <br> Copper metal+aqueous silver nitrate
    6·1 answer
  • 9. t An element that has only 5 electrons in the 4p orbital is located in which group? A. O Group 1 B. Group 17 C. O Group 2 D.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!