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
stira [4]
4 years ago
6

Which is an element hydrogen , air , carbon dioxide , water​

Chemistry
2 answers:
Basile [38]4 years ago
8 0

Answer:

Hydrogen is an element

Explanation:

Hydrogen is an element with only hydrogen atoms, whereas air, carbon dioxide, and water are all made up of multiple elements with different types of atoms.

suter [353]4 years ago
3 0

Answer: hydrogen

Explanation:

An element is a substance whose atoms have the same number of protons it’s not air because it is a mixture it is not water because it is a compound and carbon dioxide is a compound...

Hope this helped!!!!!!!

You might be interested in
Magnesium reacts with hydrochloric acid (HCl) as follows. Mg(s) + 2HCl(aq) -->MgCl(2)+H(2)(g) How many milliliters of hydroge
max2010maxim [7]
We are given the number of moles of solid magnesium supplied for the reaction which is 0.02 moles while hydrochloric acid is supplied in excess thus we can say that the reaction proceeds to completion. Calculation is as follows:

0.020 mol Mg ( 1 mol H2 / 1 mol Mg ) = 0.020 mol H2 gas is produced

To convert the number of moles to volume, we use the conditions at STP of 1 mol of a substance is equal to 22.4 L. Thus,

0.020 mol H2 (22.4 L / 1 mol) (1000 mL / 1 L) = 448 mL
5 0
4 years ago
How does gravity depend on the mass of the two objects
marin [14]

Answer:

Yes

Explanation:

the gravity of an object depends on its mass. that's why the sun has its gravitational pull.

3 0
2 years ago
In plant cells, how are chloroplasts and mitochondria related?
guapka [62]

Answer:

Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.

5 0
3 years ago
Which two opposing forces are at work when a rocket flies
Leokris [45]
Gravity and thrust work against eachother
5 0
3 years ago
An order is received for ALternatGEL 30 cc PO q4h, ranitidine 150 mg PO bid, enteric-coated aspirin 325 mg PO qd, and tetracycli
kaheart [24]

Answer:

Tetracycline and antacid should not be given together.

Explanation:

In the given order, tetracycline and antacid are given together. The antacid is in the aspirin. The tetracycline and antacid should not be used together because the presence of antacid will suppress the effectiveness of the tetracycline. This is because antacid contains chemical compounds such as sodium bicarbonate which can interact with the tetracycline.

7 0
3 years ago
Other questions:
  • What first 16 elements were known in 1760
    12·1 answer
  • Which factor below does NOT affect how fast a solute dissolves in a solvent? A) Quantity of solute B) Particle size of solvent C
    6·2 answers
  • What is an environmental impact study
    7·1 answer
  • Which of the following is an organic compound? carbon monoxide (CO) sodium chloride (NaCl) sulfur oxide (SO) water (H2O)
    6·2 answers
  • Classify each of these soluble solutes as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. Solutes Formula Hydroio
    14·1 answer
  • For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate sol
    11·1 answer
  • PLEASE.
    12·1 answer
  • Quickly please! Which is a group of tissues that work together to carry out a common function?
    10·2 answers
  • Describe and explain the trends in reactivity in different groups of the periodic table, using your knowledge of electronic stru
    9·1 answer
  • A container holds 100.0 mL of nitrogen at 21° C and a pressure of 736 mm Hg. What will be its volume if the temperature increase
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!