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3 years ago

___________ is a characteristic of a substance that's observed during a chemical reaction. *

Chemistry

1 answer:

Tju [1.3M]3 years ago

3 0

Chemical property. Chemical property refers to the characteristic changed

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What subatomic particles are most involved in chemical bonding?

MAVERICK [17]

D. Electrons
Atoms can share their electrons in order to create bonds with other atoms

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4 years ago

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Max discovered a beaker full of transparent liquid in the science lab. He hypothesized that since the liquid is transparent like

S_A_V [24]

B. Test a hypothesis by gathering data

Seriously though, what type of guy thinks "oh hey there's a transperent liquid in the science lab? yeah it's water."

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4 years ago

Help ASAP!!

arlik [135]

Given :

Chlorine's 3p sub level has 5 electrons in it.

To Find :

How many electron(s) more in the 3p sub-level to make it stable.

Solution :

Electronic configuration of Chlorine is :

[Ne] 3s² 3p⁵.

We know, p-orbit is stable with 6 electronic.

Therefore, to stable p-orbit 1 more electron is required in 3p sub-level.

Hence, this is the required solution.

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3 years ago

1. Which statement is accurate?

valkas [14]

1. Answer:

B) An allele is one form of a gene.

Explanation:

An allele refers to an alternative form of a gene. In other words it is one of the form of a gene.
A gene may have two alleles, where one of the allele is a dominant allele and the other is a recessive allele.
A homozygous organisms may be dominant or recessive, a homozygous recessive contains two recessive alleles while a homozygous dominant contains two dominant alleles.
A heterozygous organisms contain one dominant allele and one recessive allele.

2. Answer;

B) Alleles

Explanation;

According to Mendel genes are inherited in pairs of alleles that behave in a dominant and recessive pattern.
Alleles are alternative forms of a gene.

A gene may have two alleles, where one of the allele is a dominant allele and the other is a recessive allele.
A homozygous organisms may be dominant or recessive, a homozygous recessive contains two recessive alleles while a homozygous dominant contains two dominant alleles.

8 0

4 years ago

When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calculate the volume(in L) of H2(g)

sertanlavr [38]

The volume of H₂ gas formed = 4.1 L

Explanation:

In the first step, we have to find the number of moles of HCl involved in the reaction

In the second step, using that moles of HCl, we have to find the moles of H₂.

In the third step, using the moles of H₂, we have to find the volume of H₂ by means of using the given temperature and pressure.

Number of moles of HCl = Molarity × volume

= 0.855 M × 0.325 L = 0.278 moles

We have to write the balanced equation as,

Mg(s) + 2 HCl(aq) → MgCl₂(aq) + H₂(g)

2 mol of HCl produces 1 mol of H₂

0.278 mol of HCl produces = $$\frac{0.278 mol of HCl \times 1 mol of H_{2} }{2 mol HCl} = 0.139 mol of H_{2}$

Now we have to find volume of Hydrogen as,

PV = nRT

V = $$\frac{nRT}{P}$

Plugin the given values as,

V = $$\frac{0.139 mol \times 0.08205 \times 308.2}{0.85 atm} = 4.1 L$

So the volume of hydrogen formed is 4.1 L.

4 0

4 years ago