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nikklg [1K]
3 years ago
13

I will mark brainlist if correct !! :) PLS HELPPP

Chemistry
1 answer:
Soloha48 [4]3 years ago
6 0
<h2>Answer: Option B</h2>

Option A is incorrect. <u>Heated water cannot freeze.</u>

Option B is correct. <u>Heated water will evaporate.</u>

Option C is incorrect. <u>Heated water cannot create condensation.</u>

Option D is incorrect. <u>Water can't melt when heated unless it's been frozen beforehand. </u>

<u />

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A boulder sits at rest on top of a mountain. What conclusion can be made about the forces acting on the boulder? The forces acting on the boulder are balanced (net force equals zero).

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3 years ago
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This is the last free pts for the day but you have to answer this still to earn Brainliest, k? Guess what time zone I live in, d
BigorU [14]

Answer:

ummm Eastern time zone

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3 years ago
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Genes are sections of DNA that code for a particular trait. Genes are ?
Burka [1]

Hello! Allow me to help!

Your question: Genes are ?

My answer: In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function

Why is my answer correct? Good question! Allow me to explain: A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. An international research effort called the Human Genome Project, which worked to determine the sequence of the human genome and identify the genes that it contains, estimated that humans have between 20,000 and 25,000 genes.

Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

Scientists keep track of genes by giving them unique names. Because gene names can be long, genes are also assigned symbols, which are short combinations of letters (and sometimes numbers) that represent an abbreviated version of the gene name. For example, a gene on chromosome 7 that has been associated with cystic fibrosis is called the cystic fibrosis transmembrane conductance regulator; its symbol is CFTR.

Hope this helps! UwU

-Maxwell

(Sorry if this is a little long and confusing. D:)

8 0
3 years ago
The value for ψ in root tissue was found to be -1.6 bars. If you place the root tissue in a 0.1 m solution of sucrose at 20°c in
Allisa [31]

Answer:

\Psi=\Psi_s+\Psi_p\\

I=1;C=0.1;R=0.0831\\

T=20+273=293~C\\

as beaker is open so

\Psi_p=0\\

\Psi=\Psi_s\\\Psi=-2.43483

As ψof solution is lower than the root tissue so water will move out of the root to the solution

Explanation:

8 0
4 years ago
69g of sodium reacts with chlorine to produce sodium chloride. calculate the number of moles of chlorine required to react with
Rus_ich [418]

Answer:

3 moles of Cl^{-} is needed for Na^{+}to be fully consumed.

Explanation:

For the balanced equation:

                                  Na^{+}  +  Cl^{-}  ⇒  NaCl

First, find the moles of Na corresponding to the 69g used the general definition of mol:

                               mol Na^{+} = \frac{69 g}{23 g/mol }  = 3mol

We observe that the equation is balanced and the stoichiometric ratio between them is 1: 1.

According to this, one mole of Na will react with one mole of Cl.

                3 moles of Cl^{-} is needed for Na^{+}to be fully consumed.

7 0
3 years ago
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