Chemistry » Page 156

Chemistry

Aiyana Arellano

Is sodium hydroxide dissolves in water a physical change

Answer Answers (1)

Chemistry

Melina Dominguez

If acid gets on your skin or clothes, wash at once with?

Sulfuric Acid

Soap

Water

Oil

Answer Answers (1)

Chemistry

Lennon Whitney

Members of which group easily lose an electron to form a 1 cation? A. halogens B. alkaline earth metals C. noble gases D. alkali metals

Answer Answers (1)

Chemistry

Guest

If 420 joules of heat energy is added to 25 grams of water at 25 degrees celcius, what will be the final temperature of the water, in Celcius degrees?

Answer Answers (1)

Chemistry

Hardy

What is the term for the smallest bit into which a chemical substance can be divided and still have

the properties of that substance?

A) electron

B) atom

C) molecules

D) iron

Answer Answers (1)

Chemistry

Xiomara Stafford

What is the percent yield if 0.3 mol ba (no3) 2 and 0.25 mol na3po4 react to produce 0.095 mol ba3 (po4) 2?

Answer Answers (1)

Chemistry

Janessa Boyer

A compound is a pure substance. It can not easily be broken down into parts by physical means.

A) True

B) False

Answer Answers (1)

Chemistry

Beef

How do you use the periodic table to find the matter, number of subatomic particles, family name, reactivity, and number of valence electrons?

Answer Answers (1)

Chemistry

Paityn Fritz

You see rainforests a is far as the eye can see It rains every day and the humidity is fiercel Where might you be?

Polar climate

Tropical climate

Subtropical climate

Temperate climate

Answer Answers (1)

Chemistry

Lindsey

What is the evaluation of 60.1 x - 9.2?

(I pressed chemistry, but I ment to press mathematics, sorry!)

Answer Answers (1)

Chemistry

Pickle

How can I calculate the percent concentration of solution?

m solute = 15g

m solution = 100g

Answer Answers (2)

Chemistry

Brindle

Calculate the mass in grams of a single atom C¹²

Answer Answers (2)

Chemistry

Elliot Spears

If you combine 370.0 mL of water at 25.00 °C and 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

Answer Answers (1)

Chemistry

Zachariah Wilkins

What particles are found in the chemicals that may be responsible for the production of colored light?

Answer Answers (1)

Chemistry

Skyla Kirby

A mixture of NaCl and NaBr has a mass of 2.07 g and is found to contain 0.78 g of Na. What is the mass of NaBr in the mixture?

Answer Answers (1)