1 kg ---------- 1000 g
4.84 kg ------ ?
4.84 x 1000 / 1 => 4840 g
D = m / V
7.86 =4840 / V
V = 4840 / 7.86
V = 615.77 cm³
1 cm³ ------------ 0.01 dL
615.77 ----- ?
615.77 x 0.01 / 1
= 6.1577<span> dL</span>
Answer:
pH is a measure of hydrogen ion concentration, a measure of the acidity or alkalinity of a solution. The pH scale usually ranges from 0 to 14. Aqueous solutions at 25°C with a pH less than 7 are acidic, while those with a pH greater than 7 are basic or alkaline. A pH level of 7.0 at 25°C is defined as "neutral" because the concentration of H3O+ equals the concentration of OH− in pure water. On the other hand, electrical conductivity is a non-specific measurement of the concentration of both positively and negatively charged ions within a sample. So the short answer to the question is as follows, the presence of any hydrogen ions present in a substance will impact the pH level and most probably influence conductivity levels. However, hydrogen ions make up only a small part of the ion concentration measured by a conductivity meter.
Answer:
The correct option is: an increase in body temperature due to high fever
Explanation:
Denaturation of protein is a process by which the protein unfolds i.e. loses it's quaternary, tertiary, and the secondary structure when exposed to <u>high temperature (above 41°C)</u>, <u>change in pH</u> or<u> chemical denaturants</u>. Denaturation of proteins leads to loss of activity.
The enzymes <u>pancreatic proteases</u> breaks down proteins by hydrolysis, thus leading to the denaturation of protein.
<u>Since, generally fever does not increase the body temperature above 41°C. Therefore, it doesn't lead to denaturation of protein.</u>
Answer: solid.
Explanation:
Precipitate is the solid substance produced during a chemical reaction carried out in a solution.
The precipitate is formed when the reactants in a chemical reaction, which are in solution, form a compound that is insoluble, and so it cannot stand dissolved but precipiates, normally going to the bottom of the vessel, in solid form.
The phases in a chemical equation are indicated using letters inside parenthesis placed to the right of the chemical formula of each compound or element.
These are the common uses: s for solid, aq for aqueous solution, l for liquid, and g for gaseous.
This is an example:
2 NaOH (aq) + CuCl₂ (aq) → 2 NaCl (aq) + Cu (OH)₂ (s)
The phases are:
- Reactant side: NaOH and CuCl₂ are dissolved in water, which is indicated by the the word aq, meaning aqueous.
- Product side: NaCl is aqueous, and Cu(OH)₂ is in solid form, meaning that it is a precipitate.
Answer:
2, 4, 1, 3, 5
Explanation:
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