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
krok68 [10]
4 years ago
13

Exam #1 On Scientific Method

Chemistry
1 answer:
professor190 [17]4 years ago
8 0

Answer:

hhvghhvghh

Explanation:

ghhhjjjnjj

You might be interested in
S- 2500m
natulia [17]

Answer:

1632 Hz

Explanation:

We'll begin by calculating the frequency of each wave. This can be obtained as follow:

1st wave:

Velocity (v) = 340 m/s.

Wavelength 1 (λ₁) = 5 m

Frequency 1 (f₁) =?

v = λ₁f₁

340 = 5 × f₁

Divide both side by 5

f₁ = 340 / 5

f₁ = 68 Hz

2nd wave:

Velocity (v) = 340 m/s.

Wavelength 2 (λ₂) = 0.2 m

Frequency 2 (f₂) =?

v = λ₂f₂

340 = 0.2 × f₂

Divide both side by 0.2

f₂ = 340 / 0.2

f₂ = 1700 Hz

Finally, we shall determine the difference in the frequency of both waves.

This can be obtained as follow:

Frequency 1 (f₁) = 68 Hz

Frequency 2 (f₂) = 1700 Hz

Difference =?

Difference = f₂ – f₁

Difference = 1700 – 68

Difference = 1632 Hz

8 0
3 years ago
3.50 moles of Ca = ? grams Ca
torisob [31]

Answer:

The mass of 3.5 moles of Ca is 140 g to two significant figures.

Explanation:

6 0
3 years ago
Which of the following is NOT a clue that could indicate a chemical change?
mixer [17]

Answer:

i think its C, but im not 100% sure. if not c, then D, but C sounds more right.

Explanation:

everything else sounds like sure fire sighs of a chem change. good luck

6 0
3 years ago
Can someone please please help me?? I will give you BRAINIEST
KIM [24]
<h3 /><h3>1) \: 6.0(4.0) - 1.5 \\ 24 - 1.5 \\  = 22.5 \\ 2) \:  \frac{18}{2.0}  +5 .3 \\ 9 + 5.3 \\  = 14.3</h3><h3><u>PLEASE MARK ME BRAINLIEST</u></h3>
7 0
3 years ago
Read 2 more answers
What material makes up ash and pumice?
slamgirl [31]

Pumice rocks are formed due to the air that is trapped in between the rocks, a body of magma spurting out with dissolved gas under pressure. As the magma cracks through the Earth’s surface, the sudden pressure drop causes the gas to come out of the solution. The flash of gas form the vent slices the magma and blows it out as a molten lather. The lather hastily solidifies as it flies into the air and falls back to Earth as pieces of pumice.

7 0
3 years ago
Other questions:
  • Find [cu2+] in a solution saturated with cu4(oh)6(so4) if [oh − ] is fixed at 2.3 ✕ 10−6 m. note that cu4(oh)6(so4) gives 1 mol
    9·1 answer
  • Litmus paper is made from water-soluble dyes which are extracted from lichens. This paper is used as an acid-base indicator. Whi
    9·1 answer
  • Modern atomic theory states that the atom is a diffuse cloud of ________ surrounding a small, dense nucleus.
    15·2 answers
  • What is the first step in the scientific method? A. form a hypothesis B. illustrate the process C. observe and ask questions D.
    13·2 answers
  • All living organisms level of __ and group similar things together.Like cardiac Cells being grouped to create the tissue of hear
    6·2 answers
  • If 192 grams of sulfur dioxide are reacted completely, determine both the number of moles and of sulfur dioxide reacted (the for
    5·1 answer
  • How many moles are in 6.5g of carbonate​
    5·1 answer
  • WHICH OF THE FOUR COMPOUNDS HAS BONDS WITH THE GREATEST DEGREE OF POLARITY (MOST POLAR)?
    8·1 answer
  • A 250. cm3 sample of neon is collected at standard temperature and pressure. Assuming the volume remains constant, what would be
    10·1 answer
  • What are the four types of severe storms
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!