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
tatyana61 [14]
3 years ago
5

Which groups are potassium (K) and calcium (Ca) ) in ? Describe the similarities and differences between these groups

Chemistry
1 answer:
Marta_Voda [28]3 years ago
4 0
They’re both metals. Potassium are in group one and calcium is in group 2
You might be interested in
An alloy of bronze is manufactured by melting 51.2 g of copper with 6.84 g of tin. What is the percent copper in the bronze?
Harlamova29_29 [7]

Answer:

Percentage of copper = 88%

Explanation:

Given data:

Mass of copper = 51.2 g

Mass of tin = 6.84 g

Percentage of copper = ?

Solution:

Formula:

Percentage of copper = mass of copper / total mass × 100

Now we will determine the total mass:

Total mass = mass of copper + mass of  tin

Total mass = 51.2 g + 6.84 g

Total mass = 58.04 g

Now we will calculate the percentage of copper.

Percentage of copper = 51.2 g / 58.04 g × 100

Percentage of copper = 0.88 × 100

Percentage of copper = 88%

5 0
3 years ago
Which organism in a food web would be best described as a recycler?
Anika [276]

C,

takes dead things, makes them into other things

7 0
3 years ago
What are the major sources of crude oil<br>​
timurjin [86]

Explanation:

Crude oil is a naturally occurring fossil fuel - meaning it comes from the remains of dead organisms.

Crude oil is made up of a mixture of hydrocarbons - hydrogen and carbon atoms.

It exists in liquid form in underground reservoirs in the tiny spaces within sedimentary rocks. Or it can be found near the surface in oil sands.

It is often found alongside natural gas and saline water.

Crude oil is often interchangeably referred to as petroleum. This is because petroleum includes both the unrefined crude oil as well as refined petroleum products.

It is non-renewable - once it’s gone it’s gone and cannot be easily replaced.

5 0
3 years ago
How many moles of hci are needed to form 230 moles of ci2?
LekaFEV [45]
<span>The answer is 335 dm³.</span>
4 0
3 years ago
Please help!
Len [333]
It will slowly rotten and turn brown
7 0
3 years ago
Other questions:
  • Round to 4 significant figures: 42,561
    11·1 answer
  • What part of the ear is damaged most easily by continued exposure to loud noise?
    9·1 answer
  • Is air a compound mixture or a element.
    13·2 answers
  • I REALLY NEED YOUR HELPPPPPP!!!!!!!!!!!!!!!!!!!!when the boy was skating,kinetic energy was ______and thermal energy was _______
    15·1 answer
  • Researchers later isolate another residue that tends to be phosphorylated at position 259 of the AQP5 protein. If they desire to
    6·1 answer
  • What is the density of an object having<br> a mass of 15 g and a volume of 3 cm?
    7·2 answers
  • How many protons, neutrons and electrons are in these atoms?
    5·1 answer
  • AN object has a volume<br> of 77ml and a mass of<br> 429. What is the density<br> of this object?
    14·1 answer
  • A sentence with the word atom
    13·2 answers
  • Help please I really need it. :(
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!