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Sidana [21]
4 years ago
14

Isra is analyzing the properties of several samples of elements to find out which sample is a metalloidd. Which set of propertie

s most likely belongs only to metalloidd? A) forms basic compounds and is a solid B) has a high luster and is very brittle C) is a gas and has low electrical conductivity D) is brittle and forms acidic compounds
Chemistry
2 answers:
Svetllana [295]4 years ago
3 0
<span>Metalloids are all solid at room temperature. Some metalloids, such as silicon and germanium, can act as electrical conductors under the right conditions, thus they are called semi-conductors. Silicon for example appears lustrous, but is not malleable or ductile it is brittle as well.

So B seems to be your answer,

I hope this helps.
</span>
kvasek [131]4 years ago
3 0

Answer:

B

Explanation:

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(Based on q = -sm∆T)
vekshin1

Answer:

Sn < Brass ≈ Zn <   Al  

Step-by-step explanation:

                      Sn   < Brass  ≈   Zn   <   Al

C/J·°C⁻¹g⁻¹: .0.246 <  0.418 ≈ 0.419 < 0.734

3 0
4 years ago
select the common word on the outside of a shipping container that will alert you to the fact that the material inside is hazard
Paha777 [63]

The common word on the outside of a shipping container that will alert you to the fact that the material inside is hazardous is caution.

<h3>What are hazardous statements?</h3>

Hazardous statements are those words or phrases that are labelled against chemicals which shows the degree of how dangerous the chemical are.

The common words that are used as hazardous statements which shows that a chemical is dangerous include the following:

  • Danger,

  • Caution and

  • Warning.

Therefore, the common word on the outside of a shipping container that will alert you to the fact that the material inside is hazardous is caution.

Learn more about hazard statements here:

brainly.com/question/2875871

#SPJ1

3 0
2 years ago
Which element is most likely to gain electrons in a chemical reaction?
tatyana61 [14]
Option 2, Br. I'll go over why all other three options are incorrect.

Option 1 - Krypton is a Noble gas, and so it doesn't need to accept electrons since it has an octet.

Option 3 and 4 - Both Calcium and Barium are alkaline earth metals, and give away electrons, since they only have 2.

-T.B.
6 0
3 years ago
QUESTION 4
Greeley [361]

Answer:

B) 2

Explanation:

There are two significant figures in given measurement,

2, 0

Significant figures:

1= The given measurement have four significant figures 1534.

2= All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

3= Leading zeros are not consider as a significant figures. e.g. 0.03 in this number only one significant figure present which is 3.

4= Zero between the non zero digits are consider significant like 107 consist of three significant figures.

5= The zeros at the right side e.g 2400 are also significant. There are four significant figures are present.

7 0
4 years ago
Calculate the number of atoms in 5 moles H₂O.
oksano4ka [1.4K]

Answer:

90.35 × 10²³ atoms

Solution:

1 molecules of H20 contains 3 atoms,.

And we know that one mole of any molecule contains 6.023 × 10²³ atoms from Avogadro's number,

hence 5 moles of H20 will contain = 5× 6.023 × 10²³ × 3 atoms = 90.35 × 10²³ atoms!

<em><u>Thanks for joining brainly community!</u></em>

4 0
3 years ago
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