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
yanalaym [24]
2 years ago
10

Which of the following would be considered a compound? He CI NaCl B

Chemistry
1 answer:
kobusy [5.1K]2 years ago
5 0

Answer:

NaCl

Explanation:

because He which is helium gas its an element alone,

Cl which is chlorine is a single element,

B which is Boron and its a single element,

but NaCl which is simply called table sugar is the combination between Na, sodium and Cl, chlorine , so its called a compound not an element.

You might be interested in
Is "Hypooxide" even a thing???
bulgar [2K]

Answer:

yes it is

Explanation:

4 0
3 years ago
What is the oxidation number of nitrogen in nitrogen gas?
andrew11 [14]
Ans: (D) 0
Hope my answer is correct:))
3 0
2 years ago
Identify the compounds B and C.
lutik1710 [3]

Answer:

B is CH₃-CH₂-CH₂-CH₂-C(triplebond)CH (1-hexyne)

C is CH₃-CH₂-CH₂-CH₂-C(triplebond)C-CH₃ (2-heptyne)

Explanation:

7 0
3 years ago
1.)Which of these is a unit of pressure?
algol [13]

Answer:

1. 2nd choice

2. 2nd choice

5. 2nd choice

6. 2nd choice

(I find these multiple choices questionable...)

Explanation: I'm honestly too lazy to do the math for the rest but the conversions can be done simply by using a ratio like ½ = ⅓ and you cross multiply (you'll probably have one side with a variable, just divide both sides by the number multiplied to the variable if necessary).

8 0
3 years ago
The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. half dollars would be in a stack of the same heigh
zhannawk [14.2K]

Answer:

To equal the height of the Gateway Arch in St. Louis, it would take <u>76810 half dollars. </u>

Explanation:

If the Gateway Arch in St. Louis is 630 feet high, how many half dollars will it take to equal the height if each half dollar is 2.15mm thick?

First, we convert the ft to cm and the cm to mm.

- 1 ft = 30.48 cm

630 ft = 19202.4 cm

- 19202.4 cm = 192024 mm

Now, if a half dollar is 2.15 mm thick, how many half dollars would it take to equal the height of 192024 mm?

1 half dollar = 2.15 mm

X                 = 192024 mm

X = 192024 mm / 2.15 mm

X = 76810 half dollars.

5 0
3 years ago
Other questions:
  • Which element is a noble gas?<br> A. W<br> B. Ar<br> C. N<br> D. Er
    8·1 answer
  • How many grams of MgCl2 (molar mass = 95.20 g/mol) will be formed from 25.6 mL of a 0.100 M HCL solution reacting with excess ma
    5·2 answers
  • Which of the following is considered applied research?
    15·1 answer
  • Measurements show that unknown compound X has the following composition: element mass % carbon 41.0% hydrogen 4.58% oxygen 54.6%
    11·1 answer
  • Which best explains the relationship between parent rock and soil<br><br> composition?
    9·1 answer
  • 28.
    13·1 answer
  • What element has 9 electrons, and 11 neutrons?
    9·2 answers
  • What does a ground wire do?
    8·1 answer
  • What is the coordination number for Potassium Nitrate?​
    14·2 answers
  • ___________ is a dangerous concept because toxic chemicals concentrate as they pass up the food chain. group of answer choices
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!