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Dennis_Churaev [7]
3 years ago
9

An investigator is gathering evidence and picks up a shirt that is covered in blood and is not yet dry. After bagging the eviden

ce, what should she do next?
Group of answer choices

Pick up another piece of evidence and put it in the same bag.

Put that evidence inside of a paper bag.

Gather more evidence.

Change her gloves.
Chemistry
1 answer:
ratelena [41]3 years ago
8 0

Answer:

She should search for DNA

Explanation:

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Is food being digested physical or chemical change??
mario62 [17]
chemical. During the process of digestion, the food is broken down into smaller molecules. The salivary glands present in our mouth helps in the breakdown of the food. In this process, there is a formation of a new substance. Therefore, it is considered to be a chemical change.
5 0
3 years ago
Which of the following describes a Brønsted-Lowry base?
Mice21 [21]
__ Brainliest if helped! 

Bronsted-Lowry definition of Bases are Proton acceptors, 

or i.e. "A hydrogen ion acceptor" 

4 0
3 years ago
Read 2 more answers
How much energy would be produced from the reaction of 2.40 moles hydrogen with 3.95 moles chlorine? ___ H2 + ___ Cl2 ___ HCl ΔH
True [87]

Answer:

How much energy would be produced from the reaction of 2.40 moles hydrogen with 3.95 moles chlorine?

H_2 +  Cl_2 -> 2HCl ,  deltaH = -554 kJ

Explanation:

Given,

2.40 moles hydrogen reacts with 3.95 moles chlorine.

From the balanced chemical equation,

1mol. of H2 reacts with 1mol. of Cl2

then,

2.40mol. of H2 reacts with ----?mol of Cl2

=>2.40 mol. H2 * \frac{1mol. Cl2}{1mol. H2} \\=2.40 mol. Cl2

So, the remaining moles of Cl2 is in excess.

The limiting reagent is--- H2.

1mol. of H2 releases --- 554kJ of energy

then,

2.40mol of H2 releases ---- ?

=>2.40mol * \frac{554kJ}{1 mol.} \\=1329.6kJ

Answer is: deltaH =-1329.6kJ

3 0
3 years ago
Convert 15.5m³ to mL
ziro4ka [17]

Answer:

Explanation:

1.55e+7

3 0
1 year ago
Determine the hybrid orbital of this molecule.
Pavel [41]

The hybrid orbital of this molecule is sp^3. Hence, option C is correct.

<h3>What is hybridisation?</h3>

Hybridization is defined as the concept of mixing two atomic orbitals to give rise to a new type of hybridized orbitals.

In this compound, sp^3 a hybrid orbital makes I-O bonds. Due to sp^3hybridization iodate should have tetrahedral geometry but because of the presence of lone pair of electrons the shape of IO^{3-} the ion is pyramidal.

The hybrid orbital of this molecule is sp^3. Hence, option C is correct.

Learn more about hybridisation here:

brainly.com/question/23038117

#SPJ1

7 0
2 years ago
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