If you flip a fair coin 7 times, what is the probability that you will get exactly 2 tails?

The density of human blood is 1.06g/ml the volume is 5.5l what is the mass in kg

Most? Sings are rectangular with the longer dimension vertical and have white background

How many grams are in 1.20 mol of sodium chloride (NaCl) ?

After leaving the cockroaches in their metabolic chamber for one hour the gases in the chamber was measured. The fraction of oxygen in the chamber was 0.18.

Name a cause and effect for each of the following: • Deforestation cause: • Deforestation effect: • Desertification cause: • Desertification effect: • Urbanization cause: • Urbanization effect:

A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.

Gamma rays are waves of energy that have no charge. true false

Describe what a polar covalent bond is and name a common compound that has a polar covalent bond holding it together

Part a:we can determine the purity of solid materials by using calorimetry. a gold ring (for pure gold, specific heat = 0.1291 j⋅g-1⋅k-1) with mass of 10.5 g is heated to 78.3 ∘c and immersed in 50 g of 23.

How has desertification impacted the environment in Latin America?