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
posledela
3 years ago
13

Match the following numbers with the correct number of significant digits they possess. Answers may repeat. (4 points)

Chemistry
1 answer:
mezya [45]3 years ago
8 0

(B. 3) 172 All nonzero digits are significant.

(A. 4) 450.0 x 10^3 Trailing zeroes after the decimal point are significant.

(A. 4) 3427 All nonzero digits are significant.

(B. 3) 0.0000455 Leading zeroes are not significant.

(B. 3) 0.00456 Leading zeroes are not significant.

(C. 5) 2205.2 Zeroes between nonzero digits are significant.

(C. 5) 107.20 Trailing zeroes after the decimal point are significant.

(B. 3) 0.0473 Leading zeroes are not significant.

You might be interested in
Lets say you were doing an experiment on two different chemicals in two different test tubes. One chemical is giving off oxygen
vovangra [49]
For this answer you could smell them and the 1 that almost made you pase out probably is putting off carbon manaxiod
5 0
3 years ago
Calculate the amount of heat required to raise the temperature of a 65-g sample of water from 32 ∘C to 65 ∘C. (The specific heat
dsp73

The amount of heat required is 9.0 kJ.

<em>q = mC</em>Δ<em>T </em>

Δ<em>T</em> = <em>T</em>_f – <em>T</em>_i = 65 °C – 32 °C = 33 °C

<em>q</em> = 65 g × 4.184 J·°C⁻¹g⁻¹ × 33 °C = 9000 J = 9.0 kJ

8 0
3 years ago
Read 2 more answers
If Zn and H2SO4 undergo a single-displacement reaction, what is the balanced equation?
ankoles [38]

Answer:Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

O2Zn(s) + H2SO4(aq) → 22nH(aq) + SO4(s)

Explanation:

6 0
3 years ago
The soil of an agricultural field is too basic what can we do to correct it
katen-ka-za [31]

Answer:

you can correct it by adding an acid to make it neutral or less basic

3 0
3 years ago
Lipase is a protein that helps the body break down fats in foods. Lipase is best classified as which type of protein? an enzyme
AlexFokin [52]

Answer:

Lipase is an enzyme the body uses to break down fats in food so they can be absorbed in the intestines.

Explanation:

i hope this will help you :)

7 0
4 years ago
Other questions:
  • Which of the following is a valid pair representing STP?
    13·1 answer
  • When the volume of a gas is changed from mL to 852 mL the temperature will change from 315c to 452c
    6·1 answer
  • Item 4 part a if a proton and an electron are released when they are 4.50×10−10 m apart (typical atomic distances), find the ini
    15·1 answer
  • The following data were obtained for the reaction 2A + B → C where rate = Δ[C]/Δt [A](M) [B](M) Initial Rate (M/s) 0.100 0.0500
    15·1 answer
  • A soluble iodide was dissolved in water. Then an excess of silver nitrate, AgNO3, was added to precipitate all of the io- dide i
    14·1 answer
  • A plane flying at 250 mph for 5 hours. how far did the plane fly? <br><br> will give brainliest
    12·2 answers
  • Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effe
    15·1 answer
  • The atomic mass of hydrogen is approximately 1.0079 amu. The atomic mass of an oxygen atom is approximately 15.9994 amu. What is
    8·1 answer
  • The energy of a photon is 4.23 x 10-17 J. What is the wavelength of the radiation?
    8·1 answer
  • Figure 2 shows what happens to the electrons in the outer shells when a sodium atom reacts with a fluorine atom.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!