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
Readme [11.4K]
1 year ago
14

which should give the most vigorous reaction when dropped in water? group of answer choices zn ca si c k

Chemistry
1 answer:
Zarrin [17]1 year ago
8 0

The most vigorous reaction when dropped in water has K.

Potassium (K) is higher in activity series of metals than other metals in this question.

Activity series is an empirical progression of a series of metals, arranged by their reactivity from highest to lowest (alkaline metals have highest reactivity and Noble metals lowest reactivity).

Potassium (K) is a chemical element with atomic number 19 (number of electrons is 19).

Electron configuration of potassium is: ₁₉K 1s²2s²2p⁶3s²3p⁶4s¹.

Potassium is the alkali metal and has a single valence electron in the outer electron shell.

All alkaline metals (I group of periodic table, Na, K, Cs...) loose one electron in chemical reaction and react vigorously with water.

For more information about activity series brainly.com/question/19482695

#SPJ4

You might be interested in
How many meters are in a kilometer.
Anika [276]

Answer:

1,000 meters in 1 kilometer

Explanation:

4 0
2 years ago
Suppose a friend says that we don't need to worry about the rising temperatures associated with global climate change. Her claim
ludmilkaskok [199]

Answer:

Carbonic acid could be formed.

Explanation:

Hello,

Based on her claim, it would be a really useful strategy to prevent global warming, nevertheless, there would be a problem if a increasing amount of carbon dioxide is not buried at the bottom of the ocean yet it flows freely along the sea and probably reacting with the water, causing carbonic acid to be formed  and subsequently cutting back the sea's pH (increasing its acidity).

It would be useful, but a constant monitoring of the sea's pH must be needed because this could cause some species to be affected not only by the temperature but for the acid pH as well.

Best regards.

4 0
3 years ago
Copper was the first metal to be produced from its ore because it is the easiest to smelt, that is, to refine by heating in the
Ganezh [65]

Answer:

57.48%

Explanation:

Calculate the mass of 1 mole of malachite:

MM Cu = 63.55

MM O = 16.00

MM H = 1.01

MM C = 12.01

(Cu_{2}(OH)_{2}CO_{3})

A mole of malachite has:

2 moles of Cu

5 moles of O

2 moles of H

1 mole of C

MW Malachite = 2*MM(CU) + 5*MM(O) + 2*MM(H) + 1 *MM(C)

MW Malachite = 2*63.55 + 5*16.00 + 2*1.01 + 1*12.01

MW Malachite = 221.13

Mass of Cu in a mole of Malachite = 2*MM(CU) = 127.1

Now divide the mass of Cu by the mass of Malachite

%Cu = \frac{127.1}{221.13} =0.5748=57.48%

7 0
3 years ago
Complex chemical catalysts produced by living cells are called enzymes. true false
SIZIF [17.4K]
True 
Enzymes help the body in digestion and other bodily functions which involve chemicals.
7 0
3 years ago
Read 2 more answers
It isn't possible to transfer heat from an object at a lower temperature to another object at a _ temperature unless work is don
lisov135 [29]
Higher. Because this type of heat transfer is conduction, meaning that heat always transfers to cooler objects.
5 0
3 years ago
Read 2 more answers
Other questions:
  • The entire set of chemical reactions carried out by an organism make up the organism’s _____.
    5·2 answers
  • The reason radioactive isotopes can be followed through the steps of a chemical reaction or industrial process is that they
    7·1 answer
  • Calculate the ph and the poh of an aqueous solution that is 0.030 m in hcl(aq) and 0.070 m in hbr(aq) at 25°c.
    14·1 answer
  • Which statement is not true regarding nuclear reactions? Alpha, beta, and gamma are types of radiation. Nuclear reactions involv
    13·1 answer
  • How does the mass of a gas particle affect its rate of effusion?
    11·1 answer
  • A 15.33 g sample of magnesium oxide is found to contain 12.67 g of magnesium. What is the percent (by mass) composition of the m
    8·1 answer
  • Ayudaaaaaaaaaaaaaaaaa​
    5·1 answer
  • Can someone please help with science , I need help!!!
    13·2 answers
  • AL
    11·1 answer
  • How does energy flow through the reef ecosystem?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!