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alexira [117]
3 years ago
11

hola todos que tengan un lindo día mi hijo quiere saber esta respuesta se lo daría yo pero tengo mucho trabajo y bueno se los de

jo a ustedes espero que se lo respondan bien, muchas gracias que tengan buenos días como dije antes saludos

Chemistry
1 answer:
Butoxors [25]3 years ago
6 0

Answer:

3.

(A) 1,000 gramos en un kilogramo.

(B) 8 kilogramos

(C) 1,500 gramos en un kilogramo y medio

(D) 5.5 kilogramos

4.

(A) 283 grados Kelvin

(B) 423 grados Kelvin

(C) 27 grados Celsius

(D) -3 grados Celsius

5.

Unidades de Tiempo

(A) 600 seg

(B) 420 min

(C) 12,600 seg

(D) 2,280 seg

Unidades de Longitud

(A) 2,000 m

(B) 12,000 m

(C) 7.587 km

(D) 5.5 m

Unidades de Masa

(A) 15,000 g

(B) 0.7 kg

(C) 12 kg

(D) 4,500 g

Unidades de Temperatura

(A) 302 K

(B) 121°C

(C) 343 K

(D) -8°C

6.

a) metros

b) centimetros

c) centimetros

d) kilometros

e) kilometros

7.

a) 14.76 m

b) 1,476 cm

8.

a) El auto mas rapido es el segundo. 45/5= 9 metros en un segundo.

b) El primero. El segundo recorre 7m en un segundo 35/5= 7.

9.

a) 100 centavos en 1 peso.

b) 1,060 centavos en 10.60 pesos.

c) 6.50 pesos

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An aqueous 0.300 M glucose solution is prepared with a total volume of 0.150 L. The molecular weight of
kherson [118]

Answer:

We need 8.11 grams of glucose for this solution

Explanation:

Step 1: Data given

Molarity of the glucose solution = 0.300 M

Total volume = 0.150 L

The molecular weight of glucose = 180.16 g/mol

Step 2: Calculate moles of glucose in the solution

Moles glucose = molarity solution * volume

Moles glucose = 0.300 M * 0.150 L

Moles glucose = 0.045 moles glucose

Step 3: Calculate mass of glucose

MAss glucose = moles glucose* molecular weight of glucose

MAss glucose = 0.045 moles * 180.16 g/mol

MAss glucose = 8.11 grams

We need 8.11 grams of glucose for this solution

6 0
3 years ago
What is needed to burn the candle (reactant)?
Alexus [3.1K]

Answer:

wax, candlewick, and oxygen

Explanation:

The burning of the candle is both a physical as well as a chemical change. The reactants are the substances or the raw materials that are required for a reaction to the process. In the process of burning a candle, the reactants are the fuel which includes wax and wick, and oxygen which is found in the air. The products found at the end of the reaction are carbon dioxide and water vapor.

8 0
4 years ago
Given the information you now know, what is the effect of hyperventilation on blood pH?pH? During hyperventilation, the rapid in
Ksju [112]

Answer:

When hypercapnia processes occur, where the concentration of carbon dioxide gas increases in the blood, the protonization of the blood increases, this means that the H + ions increase in concentration, thus generating metabolic acidosis.

This metabolic acidosis is regulated by various systems, but the respiratory system collaborates by generating hyperventilation, to increase blood oxygen pressures, decrease CO2 emissions, and indirectly decrease acidity.

Explanation:

This method of regulating the body is crucial, since the proteins in our body will not be altered if they do not happen.

The enzymes, the red globules, and many more fundamental things for life ARE PROTEINS, that in front of acidic media these modify their structure by denaturing themselves and ceasing to fulfill their functions. This is the reason why it seeks to neutralize the blood pH when it comes to an increase in CO2.

3 0
3 years ago
g For the following reaction, 0.500 moles of silver nitrate are mixed with 0.285 moles of copper(II) chloride. What is the formu
scZoUnD [109]

Answer:

CuCl_2 is the formula for the limiting reagent.

Mass of silver chloride produced is 71.8 g.

Explanation:

CuCl_2+2AgNO_3\rightarrow 2AgCl+Cu(NO_3)_2

Moles of silver nitrate = 0.500 mol

Moles of copper(II) chloride = 0.285 mol

According to reaction, 2 moles of silver nitrate reacts with 1 mole of copper chloride , then 0.500 mole of silver nitrate will react with :

\frac{1}{2}\times 0.500 mol=0.250 mol of copper(II) chloride

As we can see that moles of copper(II) chloride will be reacting is 0.250 mol less than present moles of copper (II) chloride ,so this means that silver nitrate is limiting reagent.

And moles of silver chloride to be formed will depend upon silver nitrate.

According to reaction, 2 moles of silver nitrate gives 2 moles of silver chloride , then 0.500 mole of silver nitrate will give  :

\frac{2}{2}\times 0.500 mol=0.500 mol of silver chloride

Mass of silver chloride produced:

0.500 mol × 143.5 g/mol = 71.8 g

7 0
3 years ago
So im confused i don't know what im supposed to do here
FromTheMoon [43]

So I believe you are supposed to take notes based on the guiding questions (the questions on the side).

3 0
3 years ago
Read 2 more answers
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