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
Mashutka [201]
3 years ago
13

How are zinc and sodium alike?

Chemistry
1 answer:
mamaluj [8]3 years ago
5 0

Answer: both are solid at room temperture

Explanation:

You might be interested in
What would cause the equilibrium to shift left in this reaction? CO + 3H2 ? CH4 + H2O A. Adding heat to the product mixture B. A
Irina-Kira [14]

Answer:

Pretty sure the answer is A on Plato

Explanation:

I looked it up, and it said that raising the temperature would cause the equilibrium to shift left.

8 0
3 years ago
Read 2 more answers
The Ka of carbonic acid is 4.3 x 10-7.
ratelena [41]

Answer:

poor hydrogen-ion donor

Explanation:

Acid dissociation constant constant chemistry is the equilibrium constant of the dissociation reaction of an acid, it is denoted by Ka. This equilibrium constant is a measure of the strength of an acid in a solution.

Note these as a rule of thumb:

When Ka is large, the dissociation of the acid is favored.

When Ka is small, the acid does not dissociate to a large extent.

Hence, a Ka of 4.3 x 10-7 shows a weak acid. A weak acid is a poor hydrogen ion donor because it does not dissociate to a large extent in solution.

3 0
3 years ago
Are pure substances homogeneous or heterogeneous
Svetllana [295]

The answer is homogenous i think

6 0
3 years ago
What is the frequency of a photon having an energy of 4.91 × 10–17 ? (c = 3.00 × 108 m/s, h = 6.63 × 10–34 J · s)​
AlexFokin [52]

Answer:

The frequency of the photon is 7.41*10¹⁶ Hz

Explanation:

Planck states that light is made up of photons, whose energy is directly proportional to the frequency of radiation, according to a constant of proportionality, h, which is called Planck's constant. This is expressed by:

E = h*v

where E is the energy, h the Planck constant (whose value is 6.63*10⁻³⁴ J.s) and v the frequency (Hz or s⁻¹).

So the frequency will be:

v=\frac{E}{h}

Being E= 4.91*10⁻¹⁷ J and replacing:

v=\frac{4.91*10^{-17} J}{6.63*10^{-34} J.s}

You can get:

v= 7.41*10¹⁶ \frac{1}{s}= 7.41*10¹⁶ Hz

<u><em>The frequency of the photon is 7.41*10¹⁶ Hz</em></u>

<u><em></em></u>

4 0
3 years ago
What is surface tension? describe how surface tension in water is useful for plant and animals.
Leni [432]

Answer:

It helps creatures to walk on the water.

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • An unknown metal absorbs 61 J of heat, and its temperature increases by 29∘C. What is the heat capacity of the metal?
    9·1 answer
  • Need help asap! A 200 L balloon is blown up inside at 100 K. It is then taken outside in the hot sun and heated to 400K. What is
    10·2 answers
  • Which sequence of group 18 elements demonstrates a gradual decrease in forces of attraction
    13·1 answer
  • Why does a metal bond with a non-metal in ionic bondings?? ASAP please
    12·1 answer
  • How many moles are equivalent to 365 g of aluminum chloride? Using the dimensions analysis. Show work
    7·1 answer
  • Kinetic Energy Problems = KE = 0.5m x 12
    12·1 answer
  • Explain how low atomspheric oxygen levels affected alligators growth in terms of celluar respiration
    5·1 answer
  • What is true about the position of any metal in the periodic table
    14·1 answer
  • Covalent bond of N and S
    11·1 answer
  • each of the following reactions has been reported in the chemical literature. predict the product in each case, showing stereoch
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!