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
Len [333]
3 years ago
5

When heating test tubes, always slant them away from yourself and others. True False

Chemistry
1 answer:
Leni [432]3 years ago
3 0

Answer:

true

Explanation:

You might be interested in
If I add the same amounts of ice to water, cooking oil, and corn syrup then they will lose heat at the same/different rates beca
Vilka [71]
Ice is cold and water cools down heat, cooking oil isn’t hot unless you add it to heat, corn syrup isn’t hot unless you add it to heat as well so, they’d all lose heat at the same/different rates because they are all cooled beverages/subjects.
5 0
2 years ago
Express the frequency in inverse seconds of n=4 to n=3
HACTEHA [7]

Answer:

1.60×10¹⁴ s⁻¹

Explanation:

When an electron jumps from one energy level to a lower energy level some energy is released in the form of a photon.

4 0
3 years ago
Find the volume of a gas at STP, if its volume is 80.0 mL at 109 kPa and -12.5°C.​
exis [7]

Answer:

= 913.84 mL

Explanation:

Using the combined gas laws

P1V1/T1 = P2V2/T2

At standard temperature and pressure. the pressure is 10 kPa, while the temperature is 273 K.

V1 = 80.0 mL

P1 = 109 kPa

T1 = -12.5 + 273 = 260.5 K

P2 = 10 kPa

V2 = ?

T2 = 273 K

Therefore;

V2 = P1V1T2/P2T1

     = (109 kPa × 80 mL × 273 K)/(10 kPa× 260.5 K)

     <u>= 913.84 mL</u>

5 0
3 years ago
Read 2 more answers
A volcano violently erupts near a small town and wildlife preserve. Which effect might occur? Some local species develop new ada
NemiM [27]

Answer:

Ash and dust fill the air and reduce sunlight.

Explanation:

Ash and dust comes out of volcanoes, and it is bad for the environment. Polluting the air and causing fogginess, it also reduces sunlight.

3 0
3 years ago
Read 2 more answers
Change the bond between the two carbon atoms in each molecule to a double or triple bond as needed to complete the structure. If
Georgia [21]

Answer:

Your question is complex, because I think you wrote it wrong.

Although in front of this what I can help you is that the carbons are associated between a single, double or triple union.

This depends on whether they are attached to more or less carbons or hydrogens, the carbons have the possibility of joining 4 radicals, both other carbons and hydrogens.

Simple junctions talks about compound organisms called ALKANS.

The double unions, in organic these compounds are called as ALQUENOS.

And as for the tertiary unions, the organic chemistry names them as ALQUINOS.

These compounds that we write, a simple union, the less energy, the less this union, that is why the triple bond is the one that contains the most energy when breaking or destroying it in a reaction.

Explanation:

In a chemical compound the change of these unions if we modified them we would generate changes even in the classifications naming them as well as different compounds and not only that until they change their properties

6 0
2 years ago
Other questions:
  • Why is ice in a glacier considered to be a mineral, but water from a glacier is not?
    10·1 answer
  • Block mountains form along which type of geological landform?
    10·2 answers
  • To which class of elements does copper (cu) belong: metal, metalloid, or nonmetal? identify three other elements in this class.
    7·1 answer
  • Which two observations below can be evidence that a chemical change has occurred
    15·1 answer
  • Dominick and eva are using the same type of stopwatches to measure the time it takes for a chemical reaction to occur. They can
    8·1 answer
  • Of the following transitions in the Bohr hydrogen atom, which of the following
    10·1 answer
  • HELP PLEASEEEEEE I BEG U
    9·2 answers
  • Why doesn't the steepness of a frictionless ramp affect the velocity of the block at the bottom of the ramp? (Hint: Discuss cons
    10·1 answer
  • HELP PLEASE ASAP WILL MARK BRAINLIEST
    5·2 answers
  • The haber process is typically carried out at a temperature of approximately 500 ∘c. What would happen to the rate of the forw
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!