What type of reaction occurs when two hydrogen atoms collide at high speed combining together into a helium atom: alpha decay, beta decay, fission, or fusion?

An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described? CHECK ALL THAT APPLY. A. intrusive B. small crystals C. cooled quickly D. produced from magma E. formed at Earth's surface

When a theory is disproved by further evidence, which of the following occurs? A.) It should be considered a failure. B.) It adds to scientific knowledge. C.) It becomes a law. D.) New data must be found to support it.

Choose the statement (s) that is/are true about alpha emission. A. Alpha particles are helium nuclei. B. Alpha particles are negative electrons C.

What is the rate of a reaction if the value of k is 3 and A and B are each 2 M Rate kA2B?

Which statement accurately describes the chemical symbol of an element? The chemical symbol is always a single letter. The chemical symbol always starts with the same letter as the name of the element.

Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock.

What are some positive and negative effects of the production of maple syrup on society and the environment?

Describe and give an example of parasitism.

Why is a dilute solution of oleic acid used instead of pure oleic acid?

The vapor pressure of benzene (C6H6) is 73.0 mm Hg at 25 °C. What is the vapor pressure of a solution consisting of 179 g of benzene and 0.217 mol of a nonvolatile nonelectrolyte?